topic Graceful ways to handle missing data from a Proc Import of .xls files in SAS Procedures

Graceful ways to handle missing data from a Proc Import of .xls files

BenConner — Wed, 19 Nov 2014 20:49:18 GMT

Hi,

I'm looking for ideas on how to handle error conditions from a missing or renamed tab when using Proc Import in a batch mode. I've been asked to read in a lot of older excel files, each of which has multiple tabs. I can easily detect if the file itself is present with the fileexist() function. Not so much with a missing or mis-named tab within the spreadsheet.

Each proc import is followed by a data step to transform it, then a proc append. If proc import doesn't find the tab, it won't create the output file as it doesn't know what to put in it. The data step then chokes on a missing input dataset.

Thanks!

--Ben

Re: Graceful ways to handle missing data from a Proc Import of .xls files

SASKiwi — Wed, 19 Nov 2014 21:09:45 GMT

You could try a LIBNAME statement with the EXCEL option. When you assign your LIBNAME to a workbook, all of the tabs will be listed in a PROC CONTENTS of the library. You could also use the EXIST function to test if a tab is present or not.

Re: Graceful ways to handle missing data from a Proc Import of .xls files

BenConner — Wed, 19 Nov 2014 21:48:38 GMT

Of course. Then I can get direct access to what they -really- used for tab names and conditionally execute the transform/append steps. And no nastygrams in the log files!

Much appreciated!

--Ben

Re: Graceful ways to handle missing data from a Proc Import of .xls files

BenConner — Thu, 20 Nov 2014 15:19:31 GMT

As a followup, is there a way to disable SAS looking for field names on the first line of the spreadsheet in the "Libname Excel ..." approach? It picked up a title and none of the columns have reasonable data for fieldnames.

Thanks!

--Ben