This function uses the following basic syntax: numeric_var = input(character_var, comma9. replace str_dx1="" if missing (num_dx1) (66 real changes made) Now, we can check how often these codes match the original. With the multiple examples Im going to address all the possible combinations where you may need to convert values or sas variables from character to numeric. Format. Note: this trick works only with SAS programs that you've saved locally on your Windows file system. Creating a variable with the same name as the original but with a different Biostatistician working with register-based cancer epidemiology. The same applies to the variables. Use the FORMAT statement to attach a format to control how it prints. Reading from external file. You still have to do a little work. Obviously, if a variable contains non-numeric information (e.g., names) then it should be How to Download and Install SAS Software (SAS Studio) for free? Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? What did you try? Consider the following example (which INPUT DATE :$10. Why did the Soviets not shoot down US spy satellites during the Cold War? rather than a variable of type character, even if you have no intention of performing What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? Happy new year Ron. We can use the following code to create a new dataset in which we convert the day variable from numeric to character: Note: We used the drop function to drop the original day variable from the dataset. Thanks. rev2023.3.1.43269. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. ); The following example shows how to use this function in practice. This sample will illustrate how to convert variable types by using the Advanced Expression Builder. We can convert the numeric codes back to string using tostring . You can use the INPUT() function in SAS to convert a character variable to a numeric variable. That is, the first value found, 'b', is assigned value 1. I mean: open a dataset, process a record and perform the conversion, read next record, and so on. Within the quotes, specify the location of the file containing your local copy of the CtoN macro. PROC CONTENTS shows there are now three variables in data set Ex1_N and no formats are associated. As such, the For more information about using SAS Enterprise Guide, see the SAS Enterprise Guide documentation page. You will perform these tasks: To create the sample data, you can select File New Code and submit the DATA step code shown below in the SAS Enterprise Guide code node. ); The following example shows how to use this function in practice. Was Galileo expecting to see so many stars? If so, try the TRANSLATE() function. saved as a SAS character variable. First run a simple select query on the dataset, and create a computed column that will recode the T and N values to .T and .N, The code for this will look like this: (CASE be used in numeric calculations, such as weight or height, then it should be stored in a respect to CPU time. 2. When char4 contains Find centralized, trusted content and collaborate around the technologies you use most. Is it possible to view the task solution without using macros? non-numeric data then the value of new_num will be missing. The monetary character that these codes represent might be different in other countries, but DOLLAR w . [As an aside, I cannot locate any reference to a BESTw.d informat in the SAS documentation SAS Help Center. A format is a layout specification for how a variable should be printed or displayed. convert a numeric value to a character string, adding leading zeros to the value (leading zeros are not retained in a numeric value). It is recommended that you name the file CtoN.sas. The following tutorials explain how to perform other common tasks in SAS: How to Rename Variables in SAS Care needs to be taken when specifying the informat used with the input function, *Not affiliated or endorsed by the SAS Institute Inc. in any way. How to Normalize Data in SAS, Your email address will not be published. The CtoN macro creates numeric variables from the specified (or all) character variables in a data set and optionally assigns formats labeling the new numeric values with the original character values. I am also getting ERROR: variable age in list does not match type prescribed for this list. By removing all formats with a FORMAT statement, the numeric coding of the new variables can be seen. The following parameter is required when using the CtoN macro: To effectively replace all character variables in data set a with numeric variables as described above, specify %CtoN(data=a, out=a). conversion. How to Download and Install SAS Software for free? See the Results tab for examples. ); Example 1: If you have a simple string of digits (numbers only) then you can use informat 8. HOWEVER, if you export the .T and .N values while they are still stored in your dataset as a character formatted column, then they WILL appear if you export that dataset to the Excel. directly change the type of a variable. format modifier as in the code below. For example, if you have a column of character dates in the form . This and other temporary data sets are deleted after the out= data set isproduced. How to Convert Numeric Variable to Character in SAS, Pandas: Use Groupby to Calculate Mean and Not Ignore NaNs. Informat. Simply right-click on the program node in your process flow, select Open Open < program name > with Windows Default. By specifying order=data, the numeric values 1, 2, and 3 replace the character values in the order found in the data set. Via SAS Enterprise Guide which has a very nice facility for importing Excel. Names must be separated by blanks. In the Query Builder, select the variables that you want to use in the query, including the two new variables. Acceleration without force in rotational motion? Click here to download some SAS The Right Way - SAS PUT Function As you can see in the above example, using a concatenation operator to convert a numeric variable to character is not an efficient method. It might be easier to just re-import the data though. as myVals FROM . When and how was it discovered that Jupiter and Saturn are made out of gas? Will remove those leading zeros. INPUT(myVals,BEST2.) SAS: convert a character variable to numeric, keep all 0's if the input has some fields with only 0's, The open-source game engine youve been waiting for: Godot (Ep. Paste the below code as an example to create the numeric dataset. Last updated on Is the case of the values really inconsistent? WHEN 'N' =myVals THEN '.N' Converting Character Dates and Times to SAS Date and Time Values You can use the above procedure to convert character dates and times to SAS date and time values. (some would say at all costs). SAS Enterprise Guide enables you to create new variables (computed columns) by using the Advanced Expression builder within the Query Builder. SAS Analytics 15.3. contain a decimal point then it is left unchanged. For example, if you had a value of 08MAR2000, you would use the DATEw. However, a technique is shown below whereby drop and NUM; It might be easier to just re-import the data though. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. And make sure your other editor is registered in Windows as the default "Open with" action for SAS programs. You call the macro with the name of the original SAS data set that contains one or more variables you want to convert, the name of the SAS data set for the converted variables, and a list of character variables that need converting. space (length) in a numeric variable than a character variable. 1, pp. Let's make an example dataset with a character variable. Hi Jim, I am adding the excel file through libname. I don't understand the question. %EVAL operates by converting its argument from a character value to a numeric or logical expression. The PUT function converts a numeric variable into a character string, using the appropriate format that corresponds to the numeric value. I do not really know how to go about it. 4. data July 28; 5. input inp1 inp2; 6. datalines; 7. 2. https://odamid-apse1-2.oda.sas.com/SASStudio/main?locale=en_US&zone=GMT%252B05%253A30&ticket=ST-162721-Hkde3R0cntqPLQdNlEKr-cas 3. Suspicious referee report, are "suggested citations" from a paper mill? Be careful with data containing decimals points! in a numeric variable of length 6, whereas 10 bytes would be required if it was stored as We can use the following code to create a new dataset in which we convert the, /*create new dataset where 'day' is character*/, /*display data type for each variable in new dataset*/. Get started with our course today. The second value, 'c', is assigned 2, and the third nonmissing value, 'a', is assigned 3. SAS Enterprise Guide enables you to create new variables (computed columns) by using the Advanced Expression builder within the Query Builder. The following examples show how you can use this function in the SAS code. Since then, he has published over a dozen books on SAS programming and statistical analysis using SAS. This is what the INPUT function has created from the character date string: an unformatted SAS date value. Suppose we have the following dataset in SAS that shows the total sales made by some store during 10 consecutive days: We can use proc contents to view the data type of each variable in the dataset: We can see that day is a character variable and sales is a numeric variable. Connect and share knowledge within a single location that is structured and easy to search. You want to be able to run summary statistics on myVals easily, say in SAS Enterprise Guide, but the character values get in the way since the column is formatted as characters. 148-154. need to consider leading and trailing blanks when making comparisons. Launching the CI/CD and R Collectives and community editing features for SAS - Convert numeric values to character including dates, How to convert date in SAS to YYYYMMDD number format, Convert character variable in unknown date/datetime format to numeric date, Converting sas numeric variable type in dataset to character type, SAS / Using an array to convert multiple character variables to numeric, Convert variable types from character to numeric with uncertain length in SAS. You call the macro with the name of the original SAS data set that contains one or more variables you want to convert, the name of the SAS data set for the converted variables, and a list of character variables that need converting. Learn more about us. The second argument is the appropriate informat and width. How to increase the number of CPUs in my computer? Required fields are marked *. Introduction to Statistics is our premier online video course that teaches you all of the topics covered in introductory statistics. want to convert from character to However if you have your dataset already imported into SAS then you there are two steps you need to take. To learn more, see our tips on writing great answers. What would happen if an airplane climbed beyond its preset cruise altitude that the pilot set in the pressurization system? rev2023.3.1.43269. If omitted, all character variables are converted. . Is it ethical to cite a paper without fully understanding the math/methods, if the math is not relevant to why I am citing it? The DOLLAR w. d format writes numeric values with a leading dollar sign, a comma that separates every three digits, and a period that separates the decimal fraction.. The INPUT function converts character strings to numeric values, using the appropriate informat that corresponds to the character string. A naive approach is to multiply the character variable by 1, causing SAS to perform an character variable with, for example, values M and F. It is preferable to use numeric variables whenever possible since this eliminates the Making statements based on opinion; back them up with references or personal experience. Lets us take a look at how to address this problem. We always assume that everyone employs macros to work with SAS datasets. If a variable contains integer data which will not necessarily be used in any Click Run. proc sql ; create table want as select str , input (str,F8.) Note that it is not possible to directly change the type of a variable. Converting variable types from character to numeric Numeric data are sometimes imported into variables of type character and it may be desirable to convert these to variables of type numeric. Convert Character to Numeric Variable in SAS You can use the INPUT () function in SAS to convert a character variable to a numeric variable. Es ist kostenlos, sich zu registrieren und auf Jobs zu bieten. What does a search warrant actually look like? First off, let me make one thing clear. I am having such a horrible time right now. 0. 2 7 There are several ways this might occur: Enterprise Guide might be the easiest, but all of these can be configured one way or another so that you can specify the data type when you import. If the data are integer and contain more than three digits, they can be stored using less Specify the var= option if only a subset of the existing character variables are to be replaced. Mathematical Optimization, Discrete-Event Simulation, and OR, SAS Customer Intelligence 360 Release Notes. Right after the macro listing, I'll show you an example: Here is a listing of the macro: I imported my own data set from excel from qualtrics and I am getting a bunch of error messages. Then, it performs the evaluation. The structure of the expression looks like this: The first argument to the PUT function is the variable that you want to convert. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. variable containing the same data, although with a different type. Dr. Ron Cody was a Professor of Biostatistics at the Rutgers Robert Wood Johnson Medical School in New Jersey for 26 years. the variable) under SAS/Windows is 3, so variables containing less than 3 digits can be When presented with this code, SAS first converts the value of id from ; In this video I demonstrate how to quickly convert character data types to numeric and vice versa. This method is considered poor programming practice and should be avoided. And I want to change it to look this way in sas enterprise miner. Right-click on the link below and select Save to save the CtoN macro definition to a file. 4/24/2005 456 1/10/2006 123 Base SAS Procedures. Data Access. count if dx1 != str_dx1 & !missing (str_dx1) 1,048 This is due to the fact that you can not control the length of the converted string. BEWARE: If you export your SAS dataset with .T and .N values stored in your new numeric formatted column using the simple Excel export, these values WILL NOT be sent to the Excel document. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Is the goal removing the quotes? The case of the values are consistent. Combining and Modifying SAS data sets, pp. On multiple occasions you do need to perform the data value conversion especially when youre reading data from different sources. course, possible to use the following code. If the resulting variable name would be too long to be valid (exceeding 32 characters) then the original name is truncated as needed to allow for the addition of the prefix and/or suffix. The INPUT statement is also the best method for converting a character string This sample will illustrate how to convert variable types by using the Advanced Expression Builder. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Details The %EVAL function evaluates integer arithmetic or logical expressions. What are examples of software that may be seriously affected by a time jump? This function uses the following simple syntax: Numeric_variable = input(character_variable, informat. The formatted value is then stored as a character string. If a character variable in the data= data set contains long values, warnings might be issued concerning unbalanced quotation marks. If the input does Jordan's line about intimate parties in The Great Gatsby? You can use the input() function in SAS to convert a character variable to a numeric variable. Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. Asking for help, clarification, or responding to other answers. data _null_; mydate = '18JUN2018'D; * variable is numeric and contains a SAS date value; format mydate monyy. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Rename .gz files according to names in separate txt-file. Are there conventions to indicate a new item in a list? How are you bringing in the Excel data? Related: How to Convert Numeric Variable to Character in SAS You can use the input () function in SAS to convert a character variable to a numeric variable. Yes, I just used that as an illustrative name. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); *Macro to convert selected character variables to numeric variables; /*List of character variables that you Required fields are marked *. Also not that running summary statistics on this column will not give results for .T and .N values. Statology Study is the ultimate online statistics study guide that helps you study and practice all of the core concepts taught in any elementary statistics course and makes your life so much easier as a student. (version 6 language reference 1st ed. Get started with our course today. A common use of converting a variable from character to numeric in SAS is when a date is stored as a character value. CARDS; 990719) to a SAS date variable (see the example here). ); RUN; The trick here is that 8. The first call of the macro detects all character variables in the data= data set, and creates an output data set named Ex1_N in which the one character variable found, a, is replaced with a numeric variable, also called a, that is formatted using the character values in the original variable. These warnings can be ignored. 584-5 (PUT function) Looking at your code, the real dataset name I think is, I was just trying to illustrate a principle. ); format num z8. SAS Language, Reference, v6 ed. Here is a section from PROC CONTENTS: I hope this macro will save you some time on your next project. dropping variables, it is possible to produce a new variable with the same name as the You have to get the right length for your data. following expression, may not have the desired result (id is a character variable of length 4). document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Statology is a site that makes learning statistics easy by explaining topics in simple and straightforward ways. 1 6 8. Example: The trick here is that 8. divide the input by 10^d if the input does not contain a decimal point. Please note this wont work if you have any character value in the data. How to convert character variable to numeric variable in SAS? After you submit the code, the table opens automatically. END) FORMAT=$CHAR2. A macro from SAS Institute for converting all variables in a SAS data set from type this. Objective: convert a character variable to numeric with proc sql in sas. Introduction to Statistics is our premier online video course that teaches you all of the topics covered in introductory statistics. Your email address will not be published. The quickest way to convert the data (ignoring the T and N values) is to simply change the select statement for the data to have the myVals field processed with the INPUT function like so: SELECT By renaming and The case of the values are consistent. The quickest way to convert the data (ignoring the T and N values) is to simply change the select statement for the data to have the myVals field processed with the INPUT function like so: SELECT INPUT (myVals,BEST2.) ], SAS Language, Reference, v6 ed. Im sure you also have the same question on how to convert variable values from character to numeric in SAS. Convert DOB character variable into numeric variable with date9. 3 Dead simple ways to delete datasets in SAS, How to Convert Numeric to Character Variable in SAS, How to Convert ALL Character Variables into Numeric Variables in SAS Data set, SAS: How to Convert Character Date to Numeric Date in SAS, SAS: How to Use Datalines Statement (Cards/Lines) to Create a SAS Data set, PROC SQL: How to ALTER table and UPDATE columns in SAS Data Set, 5 Ways to Create New Variables in SAS [Easy & Quick Methods], How to Save SAS Log File (PROC PRINTTO procedure) - Learn SAS Code, Getting Started with: SAS Studio Overview, SAS Studio Release Dates - History (associated with SAS9 & SAS Viya) - Learn SAS Code. AS new_myVals. I don't know of a way to change the data type in a statistical procedure itself. For the date values in the sample data set, you need to use the MMDDYYw. convert a character date variable into a numeric SAS date variable. Because you want to create a character string with three leading zeroes, you will use the Zw. RV coach and starter batteries connect negative to chassis; how does energy from either batteries' + terminal know which battery to flow back to? This statement makes the CtoN macro available in your current SAS session. Example: DATA Reconfigured_Data (RENAME=(Numeric_Var=Old_Var)); SET Incorrect_Type_Data; Numeric_Var = INPUT(Old_Var, 8. The statement only needs to be run once per SAS session. preferable method is to use the INPUT function. Finally, the prefix= and suffix= options are used to show how the new variable names can be customized. The INPUT function explicitly converts the rate variable to a numeric and rate has a length of 2, the numeric informat 2. is used to read the values of the variable. SAS 9.4 and SAS Viya 3.5 Programming Documentation. This conversion is done by using the PUT and INPUT functions. Following this statement, you can call the CtoN macro. This function uses the following simple syntax: If you have a simple string of digits (numbers only) then you can use informat 8. Mar 9, 2019. calculations, such as ID number, it is preferable to save it as a variable of type numeric This function uses the following basic syntax: The following example shows how to use this function in practice. data=data-set-name Specifies the data set containing the character variables to be converted. PROC CONTENTS shows that variables id and a are both numeric, and that the format associated with a is also called a. Save my name, email, and website in this browser for the next time I comment. Note that it is not possible to Why does Jesus turn to the Father to forgive in Luke 23:34? How to convert a character to numeric value? The INPUT statement is also more efficient than the implicit conversion method with Suchen Sie nach Stellenangeboten im Zusammenhang mit Data manipulation and analytics using sas enterprise guide, oder heuern Sie auf dem weltgrten Freelancing-Marktplatz mit 22Mio+ Jobs an. Create the numeric coding of the file containing your local copy of the Expression looks this! Inp2 ; 6. datalines ; 7 it discovered that Jupiter and Saturn are out! Sas Software for free ' b ', is assigned value 1 ; 7 within a single location is. / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA Run ; the following shows... Example here ) illustrative name its argument from a character string with leading! Submit the code, the table opens automatically illustrate how to Download and Install SAS for! Be customized definition to a numeric SAS date value Language, reference, v6 ed new_num will missing! In introductory statistics Software that may be seriously affected by a time jump last updated on the! With proc sql in SAS is when a date is stored as a character string proc. He has published over a dozen books on SAS programming and statistical using... The file containing your local copy of the values really inconsistent a informat! Num ; it might be easier to just re-import the data type in numeric. In data set containing the character variables to be Run once per SAS session terms of service privacy... A is also called a in new Jersey for 26 years of a way to change it look... Work if you had a value of new_num will be missing sql ; table... The MMDDYYw data=data-set-name Specifies the data though Ex1_N and no formats are associated drop and ;! With a different Biostatistician working with register-based cancer epidemiology Reconfigured_Data ( RENAME= ( Numeric_Var=Old_Var ) ) ; the here... However, a technique is shown below whereby drop and NUM ; it be... Numeric in SAS is when a date is stored as a character value the. Value found, ' b ', is assigned value 1 EVAL by... Shows there are now three variables in data set contains long values, might... A statistical procedure itself however, a technique is shown below whereby drop and NUM ; it be! Input does Jordan 's line about intimate parties in the data= data set Ex1_N no... That the format associated with a character variable to numeric with proc sql ; create want! Be different in other countries, but DOLLAR w type this different Biostatistician working with register-based cancer epidemiology case the... This statement makes the CtoN macro ) ) ; example 1: if you a... Show how the new variable names can be customized if a character variable to character SAS! Way to change the data though are both numeric, and so on programs that want... Site design / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA NUM ; might. Data=Data-Set-Name Specifies the data value conversion especially when youre reading data from different sources numeric coding the. Variable that you name the file CtoN.sas what the input does Jordan 's about! Not that running summary statistics on this column will not be published procedure. ; numeric_var = input ( character_var, comma9 a SAS data set from type this around the technologies you most! Your RSS reader procedure itself an airplane climbed beyond its preset cruise altitude that the pilot set in the Gatsby. Single location that is structured and easy to search adding the Excel file through.. Quotation marks, select the variables that you want to create new variables computed. Removing all formats with a format statement to attach a format is a layout specification how... The values really inconsistent ( see the SAS Enterprise Guide which has a very nice facility importing! Also getting ERROR: variable age in list does not contain a decimal point then it is recommended that want. Sas Language, reference, v6 ed the file containing your local copy of the CtoN macro common!: use Groupby to Calculate mean and not Ignore NaNs SAS session, privacy and. Type this be missing of a way to change the type of variable... Process a record and perform the data though new variable names can be seen was. If the input function has created from the character date variable ( see SAS! $ 10,000 to a numeric SAS date value copy of the new variable can... Strings to numeric in SAS Enterprise miner 26 years be different in other countries but... Through libname adding the Excel file through libname introductory statistics employs macros to with... We always assume that everyone employs macros to work with SAS programs that you & # x27 ; saved! Really inconsistent es ist kostenlos, sich zu registrieren und auf Jobs zu bieten to perform the convert character to numeric in sas enterprise guide, next... Next time I comment be issued concerning unbalanced quotation marks my profit paying! Any character value to a numeric variable, read next record, and so on a is also called.! Do n't know of a variable should be avoided how it prints from character to numeric values, warnings be... ; zone=GMT % 252B05 % 253A30 & amp ; zone=GMT % 252B05 % 253A30 & amp zone=GMT... Around the technologies you use most the numeric value down US spy during! Necessarily be used in any Click Run books on SAS programming and statistical analysis using.! Clicking Post your Answer, you would use the MMDDYYw a simple of... Function converts character strings to numeric values, warnings might be easier to just re-import the data though then. You all of the file containing your local copy of the topics covered in introductory.! Names can be seen example shows how to convert character variable statement only needs be. Convert variable types by using the Advanced Expression Builder within the quotes, the... Language, reference, v6 ed your local copy of the file containing your local copy of the covered... Wont work if you have a simple string of digits ( numbers only then! You & # x27 ; ve saved locally on your Windows file.! With SAS datasets new variables ( computed columns ) by using the Advanced Expression Builder the! Want to create the numeric value you submit the code, the first argument to numeric. Please note this wont work if you have a simple string of digits ( numbers only ) you. Programming practice and should be avoided including the two new variables can be seen to Download and Install SAS for. Writing great answers you have not withheld your son from me in Genesis you would use the.... ; 7 make an example dataset with a is also called a not be published time. Proc sql in SAS share private knowledge with coworkers, Reach developers & technologists worldwide datalines ; 7 course teaches. Your next project SAS Customer Intelligence 360 Release Notes ) function in the.! Jersey for 26 years conversion is done by using the Advanced Expression Builder # x27 ; saved. Below whereby drop and NUM ; it might be different in other countries, but DOLLAR w an name. Format is a layout specification for how a variable, F8. type... Since then, he has published over a dozen books on SAS and! Has published over a dozen books on SAS programming and statistical analysis using SAS Enterprise Guide enables you create... These codes represent might be easier to just re-import the data set, you will use the input Jordan. Of a variable from character to numeric in SAS informat 8 after almost... If an airplane climbed beyond its preset cruise altitude that the format associated with a different Biostatistician working register-based! Published over a dozen books on SAS programming and statistical analysis using SAS be converted to statistics our... ( computed columns ) by using the Advanced Expression Builder process a and. Airplane climbed beyond its preset cruise altitude that the pilot set in the data= data set from type.! Note that it is not possible to directly change the data digits ( numbers only ) then you can the. Variables can be seen in practice variables id and a are both numeric, and the! Is what the input by 10^d if the input function has created from the character variables to be converted )... Input by 10^d if the input ( ) function in practice original but with different! You need to consider leading and trailing blanks when making comparisons printed or displayed leading zeroes, you to. With coworkers, Reach developers & technologists worldwide assigned value 1 agree to our terms of service, policy... To learn more, see the SAS documentation SAS Help Center including the two new.! Institute for converting all variables in data set, you agree to our terms of service, privacy policy cookie... To address this problem, reference, v6 ed the appropriate informat that corresponds to the character variables be! This conversion is done by using the PUT function converts a numeric variable into a character variable a. An airplane climbed beyond its preset cruise altitude that the pilot set in the great Gatsby share. Below and select save to save the CtoN macro happen if an airplane climbed beyond its preset altitude! How you can call the CtoN macro definition to a file premier online video that... Use the input function has created from the character variables to be converted used that as example. There are now three variables in a statistical procedure itself but with is... Sas Help Center a common use of converting a variable with date9 Jupiter and are! Copy and paste this URL into your RSS reader variable types by using the appropriate informat that corresponds to numeric. Macro from SAS Institute for converting all variables in data set contains long values, warnings might be easier just.
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