topic convert char to numeric using array in SAS Programming

convert char to numeric using array

Ronein — Tue, 16 May 2023 21:49:39 GMT

Hello

I want to convert all char variables into numeric.

In this case all char variables have digits so it is possible.

What is the reason that in want data set I dont get numeric columns?

 Data have;
 input mon1 $ mon2 $ mon3 $ mon4 $ mon5 $ mon6 $;
 cards;
 2301 2302 2303 2303 2305 2306
;
 Run;

DATA want;
SET have;
ARRAY _char mon:;
ARRAY _num mon:;
DO i=1  to dim(_char);
_num{i} = input(_char{i},best.);
END;
RUN;

Re: convert char to numeric using array

A_Kh — Tue, 16 May 2023 22:25:50 GMT

You are referring to the same variables both as character and numeric, and a SAS variable cannot be of both datatype at the same time.

You need to get new names for numeric vars, like _mon1-_mon6.

Re: convert char to numeric using array

Ronein — Tue, 16 May 2023 22:20:55 GMT

I have tried by your answer but got an error


 Data have;
 input mon1 $ mon2 $ mon3 $ mon4 $ mon5 $ mon6 $;
 cards;
 2301 2302 2303 2303 2305 2306
;
 Run;

DATA want;
SET have;
ARRAY _char mon:;
ARRAY _num _mon:;
DO i=1  to dim(_char);
_num{i} = input(_char{i},best.);
END;
RUN;

The error

ERROR: Array subscript out of range at line 39 column 17.
mon1=2301 mon2=2302 mon3=2303 mon4=2303 mon5=2305 mon6=2306 _I_=. i=1 _ERROR_=1 _N_=1
NOTE: The SAS System stopped processing this step because of errors.
NOTE: There were 1 observations read from the data set WORK.HAVE.
WARNING: The data set WORK.WANT may be incomplete.  When this step was stopped there were 0 observations and 7 variables.
WARNING: Data set WORK.WANT was not replaced because this step was stopped.

Re: convert char to numeric using array

Reeza — Tue, 16 May 2023 22:17:04 GMT

https://communities.sas.com/t5/SAS-Programming/converting-same-variable-name-from-char-to-numeric-in-the-same/td-p/817765

Re: convert char to numeric using array

A_Kh — Tue, 16 May 2023 22:23:12 GMT

ARRAY _num _mon1-_mon6;

Rename should be done outside the array

Re: convert char to numeric using array

Tom — Wed, 17 May 2023 00:57:36 GMT

You cannot use the : suffix to match variable names of variables that do not yet exist.