topic Re: Dataset categorized column in SAS Programming

Dataset categorized column

fconerj — Sun, 06 Nov 2016 18:08:41 GMT

Hello! I'm starting with sas base and I have a question.

I'm not able to find the way to create a new column which categorizes different words form other column in the same dataset.

I need to create a column (named category) with 3 different variables: "Clothes", "Bags" and "Other". So when the main column says t-shirt in the new category colum would say "clothes" if it says shoes the new columns would say other, etc

Clothes would search words like t-shirts, hats, etc

bags would search bagpacks, packs, etc

and other the rest of words

Thank you for the help!

Re: Dataset categorized column

PeterClemmensen — Sun, 06 Nov 2016 18:33:34 GMT

Something like this? 🙂

data want;
   set have;

   if main_column in ('T-Shirt' /*, Insert other types of clothes here separated by , */) then do;
      new_column = 'Clothes';
   end;
   else if main_column in ('Shoes') then do;
      new_column = 'Other';
   end;
   else if main_column in ('Some Bags Name') then do;
      new_column = 'Bags';
   end;
run;

Re: Dataset categorized column

mcarmona — Sun, 06 Nov 2016 18:53:07 GMT

Re: Dataset categorized column

PeterClemmensen — Sun, 06 Nov 2016 18:47:12 GMT

Not sure I understand completely, but you can put as many words inside the parenthesis as you want as below? 🙂

data want;
   set have;

   if main_column in ('T-Shirt' /*, Insert other types of clothes here separated by , */) then do;
      new_column = 'Clothes';
   end;
   else if main_column in ('Shoes', 'Socks', 'Ties') then do;
      new_column = 'Other';
   end;
   else if main column in ('Some Bags Name') then do;
      new_column = 'Bags';
   end;
run;

Re: Dataset categorized column

fconerj — Sun, 06 Nov 2016 18:51:20 GMT

I know, thank you again for your fast reply 🙂

I mean, imagine you have 1000 words to put in the parenthesis, is there a way to say this;

T-shirts, hoodies, hats = clothes
bags, backpacks = bags
all the rest of the words = other ?

Re: Dataset categorized column

PeterClemmensen — Sun, 06 Nov 2016 18:54:54 GMT

Ah, now I get it 🙂 Sure:

data want;
   set have;

   if main_column in ('T-shirts', 'hoodies', 'hats') then do;
      new_column = 'Clothes';
   end;
   else if main_column in ('bags', 'backpacks') then do;
      new_column = 'Bags';
   end;
   else do;
      new_column = 'Other';
   end;
run;

Re: Dataset categorized column

fconerj — Sun, 06 Nov 2016 18:56:55 GMT

that's great, thank you! 😄

Re: Dataset categorized column

PeterClemmensen — Sun, 06 Nov 2016 18:57:29 GMT

Be aware of handling different cases of text like this:

data want;
   set have;

   if lowcase(main_column) in ('t-shirts', 'hoodies', 'hats') then do;
      new_column = 'Clothes';
   end;
   else if lowcase(main_column) in ('bags', 'backpacks') then do;
      new_column = 'Bags';
   end;
   else do;
      new_column = 'Other';
   end;
run;

Re: Dataset categorized column

PeterClemmensen — Sun, 06 Nov 2016 18:58:31 GMT

Anytime. Please mark my answer as a solution if it solved your problem 🙂 Regards.