/*-------------------<-- Start of Description -->--------------------\
| Remove all the formats and informats from a data set;              |
|---------------------<-- End of Description -->---------------------|
|--------------------------------------------------------------------|
|-----------<-- Start of Files or Arguements Needed-->---------------|
| Arguments:                                                         |
|    indata - input data set you want to remove the formats and      |
|             informats;                                             |
|    outdata - the output data you want to created from the indata;  |
|------------<-- End of Files or Arguements Needed-->----------------|
|--------------------------------------------------------------------|
|------------------<-- Start of Files Created-->---------------------|
| Example: %delfmt(indata=work.citstate, outdata=citstate);          |
| Usage:   %delfmt(indata,outdata);                                  |
\------------------<-- Start of Files Created-->--------------------*/
%macro delfmt/parmbuff des = "Remove all formats from dataset";
/*--------------------------------------------\
| Copy Right: Duo Zhou;                       |
| Created: 2-1-2002 8:23pm;                   |
| Purpose: Remove all the formats and informat|
|          from a dataset;                    |
\--------------------------------------------*/
%local libref indata outdata;
%let inbuff=%qscan(&syspbuff,1,%str((),));
%let outbuff=%qscan(&syspbuff,2,%str((),));
%let linesize = %SYSFUNC(GETOPTION(linesize));
%if (%index(%quote(&syspbuff),%quote(=))) %then %do;
   %if (%index(%quote(&inbuff),%quote(=))) %then %do;
      %if (%index(%quote(%upcase(%sysfunc(compress(%quote(&inbuff))))),%quote(INDATA=))) %then %do;
         %let indata=%qscan(&inbuff,2,%str(=));
         %if (%index(%quote(&outbuff),%quote(=))) %then %do;
            %if (not %index(%quote(%upcase(%sysfunc(compress(%quote(&outbuff))))),%quote(OUTDATA=))) %then
               %put ==> Alert! Keyword parameter "%qscan(&outbuff,1,%str(=))" is not defined!;
            %else %let outdata=%qscan(&outbuff,2,%str(=));
         %end;
         %else %let outdata=&outbuff;
      %end;
      %else %if (%index(%quote(%upcase(%sysfunc(compress(%quote(&inbuff))))),%quote(OUTDATA=))) %then %do;
         %let outdata=%qscan(&inbuff,2,%str(=));
         %if (%index(%quote(&outbuff),%quote(=))) %then %do;
            %if (not %index(%quote(%upcase(%sysfunc(compress(%quote(&outbuff))))),%quote(INDATA=))) %then
               %put ==> Alert! Keyword parameter "%qscan(&outbuff,1,%str(=))" is not defined!;
            %else %let indata=%qscan(&outbuff,2,%str(=));
         %end;
         %else %let indata=&outbuff;
      %end;
      %else %put ==> Alert! Keyword parameter "%qscan(&inbuff,1,%str(=))" is not defined!;
   %end;
   %else %if (%index(%quote(&outbuff),%quote(=))) %then %do;
      %if (%index(%quote(%upcase(%sysfunc(compress(%quote(&outbuff))))),%quote(INDATA=))) %then %do;
         %let indata=%qscan(&outbuff,2,%str(=)); %let outdata=&inbuff;
      %end;
      %else %if (%index(%quote(%upcase(%sysfunc(compress(%quote(&outbuff))))),%quote(OUTDATA=))) %then %do;
         %let indata=&inbuff;
         %let outdata=%qscan(&outbuff,2,%str(=));
      %end;
      %else %put ==> Alert! Keyword parameter "%qscan(&outbuff,1,%str(=))" is not defined!;
   %end;
%end;
%else %do; %let indata=&inbuff; %let outdata=&outbuff; %end;
%if (%quote(&indata)= ) %then %let indata=&syslast;
%if (%quote(&outdata)= ) %then %let outdata=&indata;
%if (%quote(&indata) ne) %then %do;
   %if %sysfunc(exist(&indata)) %then %do;
      %if (%index(%quote(&indata), %quote(.))) %then %do;
         %let inbref=%qscan(&indata, 1, %str(.));
         %let indata=%qscan(&indata, 2, %str(.));
      %end;
      %else %let inbref=work;
      %if (&outdata ne) and (%index(%quote(&outdata), %quote(.))) %then %do;
         %let outbref=%qscan(&outdata, 1, %str(.));
         %let outdata=%qscan(&outdata, 2, %str(.));
      %end;
      %else %let outbref=work;
      %if (&inbref eq) %then %let inbref=work;
      %let inbref=%upcase(&inbref); %let indata=%upcase(&indata);
      %if (&outbref eq) %then %let outbref=work;
      %let outbref=%upcase(&outbref); %let outdata=%upcase(&outdata); %let uname =;
      options NOFMTERR;
      proc sql ;
          select name, format, informat into
                 :uname  separated by ' ',   /* variable names   */
                 :ufmt   separated by ' ',   /* format to remove not used */
                 :unfmt  separated by ' '    /* informat to remove not used */
          from  sashelp.vcolumn
          where upcase(libname) eq "%trim(%left(%upcase(&inbref)))"   and
                upcase(memname) eq "%trim(%left(%upcase(&indata)))"   and
                memtype eq "DATA" and format  ne "";
      quit;
      data %trim(%left(&outbref)).%trim(%left(&outdata));
         set %trim(%left(&inbref)).%trim(%left(&indata));
      run;
      %if (%quote(&uname) ne) %then %do;
      proc datasets nolist library=&outbref memtype=data;
         modify &outdata; format &uname; informat &uname;
      quit;
      %end;
      %else %put --> Note: Input data set doesn%str(%')t have any format to remove!;
      run;
   %end;
   %else %put ==> Alert! Data set "&indata" does not exist!;
%end;
%else %put ==> Alert! An input data set is needed!;
%mend delfmt;
<!--'"</title></head>-->

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