topic Re: Convert characters to numeric in SAS Programming

Convert characters to numeric

TingSern — Thu, 13 Jul 2017 11:13:11 GMT

Hello,

I have input data that looks like these -

Size Space Date

840K 7% 2017.183

23433K 25% 2013.034

The "K" probably is 1000 or 1024 - I take the value as 1000.

I have not seen any INFORMATS that can convert 840K to 840000 (numeric value) or 7% to 0.07 (numeric value). The date has a "." in between the year and day (in Julian format). I need to convert the date to SAS internal date. Again, I went looking at the INFORMATS available - but, I can't see any suitable ones.

I understand the coding required (for example) -

SIZEN = INPUT (SIZE. informat);

It is trying to look for a proper informat that gives me the problems.

Thank you.

Re: Convert characters to numeric

Kurt_Bremser — Thu, 13 Jul 2017 11:23:28 GMT

data want;
infile cards firstobs=2;
format size 10. space 7.2 date date9.;
input size_string $ space :percent7. date_string :$10.;
date = input(compress(date_string,'.'),julian8.);
pos = notdigit(trim(size_string));
size = input(substr(size_string,1,pos-1),10.);
select (substr(size_string,pos,1));
  when ('K') size = size * 1024;
end;
drop size_string date_string pos;
cards;
Size         Space     Date
840K        7%          2017.183
23433K    25%        2013.034
;
run;

You just have to "fit" the data for the proper formats. How eg the input for the JULIANw. format has to look can be taken from the documentation.

The documentation can usually be found by googling "SAS 9.4" and the keyword, or something like "SAS 9.4 informats by category".

Re: Convert characters to numeric

RW9 — Thu, 13 Jul 2017 11:26:09 GMT

Well, the first is simple:

sizen=input(tranwrd(size,"Z","000"),best.);

The date:

new_date=input(compress(date,"."),julian7.);

Re: Convert characters to numeric

TingSern — Wed, 19 Jul 2017 11:25:38 GMT

Yes - this is the right solution. Thank you.

Re: Convert characters to numeric

RW9 — Wed, 19 Jul 2017 12:10:19 GMT

In future, please mark the appropriate post as the correct answer, not your reply to it.