Hello, I have a dataset I'm trying to reshape using proc transpose but I cant quite seem to figure it out
data have;
input id $ record1 $ record2 $ record3 $;
datalines;
A1 a15 n14
A1 a15 b12 b17
A1 a12 b18
A2 a29 a28 a21
A3 a34 a36 c34
;
I want this data to look like this:
data want;
input id $ record $;
A1 a15
A1 n14
A1 a15
A1 b12
A1 b17
A1 a12
A1 b18
A2 a29
A2 a28
A2 a21
A3 a34
A3 a36
A3 c34
Using proc transpose i get a set with multiple columns and i cant figure out how to get only one column. Does anyone have any tips on how to do this? Thank you.
You should just do this in the data step - easier and faster than coercing PROC TRANSPOSE to do what you want! Just make an array of your variables and then `output` new rows when you have a value.
data want;
set have;
array recs record1-record3;
do _i = 1 to dim(recs);
if not missing(recs[_i]) then do;
record = recs[_i];
output;
end;
end;
keep record id;
run;
proc transpose data=have out=want prefix=record; by ID; var record1-record3; run;
EDIT: In this case I agree with @snoopy369 a data step is easier with the duplicate entries, otherwise you need to add a grouping variable.
Transposing data tutorials:
Long to Wide:
https://stats.idre.ucla.edu/sas/modules/how-to-reshape-data-long-to-wide-using-proc-transpose/
https://stats.idre.ucla.edu/sas/modules/reshaping-data-long-to-wide-using-the-data-step/
Wide to Long:
https://stats.idre.ucla.edu/sas/modules/how-to-reshape-data-wide-to-long-using-proc-transpose/
https://stats.idre.ucla.edu/sas/modules/reshaping-data-wide-to-long-using-a-data-step/
And sometimes a double transpose is needed for extra wide data sets:
https://gist.github.com/statgeek/2321b6f62ab78d5bf2b0a5a8626bd7cd
@raddad34 wrote:
Hello, I have a dataset I'm trying to reshape using proc transpose but I cant quite seem to figure it out
data have; input id $ record1 $ record2 $ record3 $; datalines; A1 a15 n14 A1 a15 b12 b17 A1 a12 b18 A2 a29 a28 a21 A3 a34 a36 c34
;I want this data to look like this:
data want; input id $ record $;
A1 a15 A1 n14 A1 a15 A1 b12 A1 b17 A1 a12 A1 b18 A2 a29 A2 a28 A2 a21 A3 a34 A3 a36 A3 c34Using proc transpose i get a set with multiple columns and i cant figure out how to get only one column. Does anyone have any tips on how to do this? Thank you.
If you did want to use PROC TRANSPOSE I think you need to add a variable because your ID is repeated.
data temp;
set have;
by id;
if first.ID then counter=1;
else counter+1;
run;
proc transpose data=temp out=want prefix=record;
by ID counter;
var record1 record2 record3;
run;
You should just do this in the data step - easier and faster than coercing PROC TRANSPOSE to do what you want! Just make an array of your variables and then `output` new rows when you have a value.
data want;
set have;
array recs record1-record3;
do _i = 1 to dim(recs);
if not missing(recs[_i]) then do;
record = recs[_i];
output;
end;
end;
keep record id;
run;
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