topic Create a dataset with long strings in SAS Programming

Create a dataset with long strings

braverju — Mon, 25 Jan 2016 22:58:36 GMT

Dear Sas experts,

I am trying to create a simple dataset with 2 char variables, one of each is actually a long string with unpredicted length.

data myLine;
infile datalines delimiter='|';
input myLine $75. lineType $20.;
datalines;
L1. This is my very long line of unpredicted length. | line_one
L2. This is my second very long line of unpredicted length.| line_simple
L3. This is my third, third, third very long line of unpredicted length.| line_another
;
run;

However, the dataset looks weird, e.g.

myLine lineType

This is my very long line of unpredicted length. | line one

The results really depends on the length of the first column (myLine). The numbers .75 and .20 are arbitrary. When I put no numbers (just $) the lines are cut after 8 symbols, I believe.

What is the right way to allow unlimited length (or at least limited by 200 symbols) for the line and to create reliable column values.

Thank you

Re: Create a dataset with long strings

Reeza — Mon, 25 Jan 2016 23:09:13 GMT

Use informats to specify the maximum length possible. Yes, the default length for a SAS character variable is 8.

data myLine;
informat myline $200. lineTYpe $20.;
infile datalines delimiter='|';
input myLine lineType ;
datalines;
L1. This is my very long line of unpredicted length. | line_one
L2. This is my second very long line of unpredicted length.| line_simple
L3. This is my third, third, third very long line of unpredicted length.| line_another
;
run;

Re: Create a dataset with long strings

Kurt_Bremser — Tue, 26 Jan 2016 06:20:24 GMT

input myLine $75. lineType $20.;

This is called formatted input. SAS will read exactly the number of characters into a column that are specified, regardless of delimiters.

If you want to specify maximum lengths for strings, but have variable lengths in the data (and want to honor the delimiters), do this:

informat myLine $75. lineType $20.;
input myLine lineType;

Re: Create a dataset with long strings

braverju — Sun, 31 Jan 2016 15:18:21 GMT

Thank you! Got it now. 🙂