DATA Step, Macro, Functions and more

Keeping a range of column names

Accepted Solution Solved
Reply
Occasional Contributor
Posts: 11
Accepted Solution

Keeping a range of column names

[ Edited ]

Hi,

 

I am reading my data source from Excel. It has columns from 1 to 28, 29, 30, 31 and MTD(Month to date). Excel files will have different columns depending on the current month's days.

Will need help on the (keep=) function. Is there any code I can use to keep a range of columns like from 1 to MTD? So it will take whichever columns in between. Columns are numeric and characters

 

Thank You.

Regards.


Accepted Solutions
Solution
‎02-07-2018 10:29 PM
Super User
Posts: 6,622

Re: Keeping a range of column names

First, you need to import the data into a SAS data set.  Afterwards, you can consider how to subset the variables.

 

The easiest way would be if you know the variable name assigned to the first column.  Then you could code:

 

data want;

set have (keep=firstcol--MTD);

run;

 

Of course, you would have to substitute the actual name of the first column for "firstcol".

 

If you don't know the name of the first column, there are ways to get macro language to do this.  But that solution would be far beyond your current knowledge of SAS.  I could program it (not that lengthy), but you would have to take it on faith that it would give the correct answer repeatedly ... so only to be used if necessary.

View solution in original post


All Replies
Solution
‎02-07-2018 10:29 PM
Super User
Posts: 6,622

Re: Keeping a range of column names

First, you need to import the data into a SAS data set.  Afterwards, you can consider how to subset the variables.

 

The easiest way would be if you know the variable name assigned to the first column.  Then you could code:

 

data want;

set have (keep=firstcol--MTD);

run;

 

Of course, you would have to substitute the actual name of the first column for "firstcol".

 

If you don't know the name of the first column, there are ways to get macro language to do this.  But that solution would be far beyond your current knowledge of SAS.  I could program it (not that lengthy), but you would have to take it on faith that it would give the correct answer repeatedly ... so only to be used if necessary.

Occasional Contributor
Posts: 11

Re: Keeping a range of column names

Posted in reply to Astounding
Hi Astounding,

Thanks alot. The '--' code was what I was looking for.
Super User
Posts: 23,224

Re: Keeping a range of column names

1. Read in your data

2. Transpose it to a long format

3. Implement the filter required which is much easier.

 


njwmeme wrote:

Hi,

 

I am reading my data source from Excel. It has columns from 1 to 28, 29, 30, 31 and MTD(Month to date). Excel files will have different columns depending on the current month's days.

Will need help on the (keep=) function. Is there any code I can use to keep a range of columns like from 1 to MTD? So it will take whichever columns in between. Columns are numeric and characters

 

Thank You.

Regards.


 

☑ This topic is solved.

Need further help from the community? Please ask a new question.

Discussion stats
  • 3 replies
  • 135 views
  • 0 likes
  • 3 in conversation