topic Re: How to extract information from a variable and create a new variable with it? in SAS Programming

How to extract an information from a variable and create a new variabl with it?

marysmith — Wed, 10 Jan 2018 16:25:52 GMT

Hello Community,

I've got a pretty advanced task and I have absolutely no idea how to do this. So feel free to help 🙂

I have a variable "medicinalproduct", which contains a lot of different informations. One information is the API Code (as you can see in the picture). The Code itself has always the same sequence. It always starts with a letter, then its 2 numbers, 2 letters, 2 numbers(for example in the first line, the API Code is B03XA01. I need to extract this code from the variable and have to create a new variable called API.

How can I do this? I have absolutely no idea. Does anybody know?Thank you soo much for your help. Cheers, Mary.The Variable I need to extract the API Code from

How to extract information from a variable and create a new variable with it?

marysmith — Wed, 10 Jan 2018 16:35:47 GMT

Hello Community,

I've got a pretty advanced task and I have absolutely no idea how to do this. So feel free to help 🙂

How can I do this? I have absolutely no idea. Does anybody know?Thank you soo much for your help.

Cheers, Mary.

Re: How to extract information from a variable and create a new variable with it?

HB — Wed, 10 Jan 2018 17:00:11 GMT

Please post data in the form of a data step and not a picture.

This is a fit for PRXMATCH I think.

With

data textfield;
   input medicinalproduct $100. ;
datalines;
upon a 23234night both dampB03XA01 and dreary GX334&$% when I was so4789 very weary%%$
there came a raven L01XA03 knocking at my door
it was the bV08AB09Rest of time and the worst of ravens
;

data apicodes;
	set textfield;
	startpos = prxmatch('[[A-Z]{1}[0-9]{2}[A-Z]{2}[0-9]{2}]', medicinalproduct);
	apicode = substr(medicinalproduct, startpos, 7);
run;

I can get

The SAS System

medicinalproduct	startpos	apicode
upon a 23234night both dampB03XA01 and dreary GX334&$% when I was so4789 very weary%%$	28	B03XA01
there came a raven L01XA03 knocking at my door	20	L01XA03
it was the bV08AB09Rest of time and the worst of ravens	13	V08AB09

Perhaps that is helpful.

I am terrible at regex development so somebody else here can probably make you a much terser expression.

Re: How to extract information from a variable and create a new variable with it?

marysmith — Mon, 15 Jan 2018 10:14:57 GMT

Thank you so much!!!!!!!!!!