So, I have a significant problem with proc compare. I have two datasets with the two columns. One column lists table names and the other one - names of variables which correspond to table names from the first column. I want compare values of one of them based on the values of first column. I somewhat made it work but the thing is that these datasets have different sizes due to additional values in one of them. Which means that some new variable was added in the middle of a dataset (new variable was added to a table). Unfortunately, proc compare compares values from two datasets horizontally and checks them against each other for values, so in my case it looks like this:
ds 1 | ds 2
cost | box_nr
other | cost_total
As you can see, a new value `box_nr` was added to the second dataset that appears above the value that I want it to compare variable `cost` to (`cost_total`). So I would like to know if it's possible to compare values (check for differences in character sequence) that have at least minimal similarity - for example 3 letters (cos) or if it's possible to just put values like `box_nr` at the end suggesting that they don't appear in a certain dataset.
My code:
PROC Compare base=USERSPDS.MIzew compare=USERSPDS.MIwew
out=USERSPDS.result outbase outcomp outdif noprint;
id 'TABLE HD'n;
where ;
run;
proc print data=USERSPDS.result noobs;
by 'TABLE HD'n;
id 'TTABLE HD'n;
title 'COMPARISON:';
run;
Your better off using proc sql, joining the two tables - assuming columns are DATASET, VAR_NAME:
proc sql;
create table MATCHES as
select COALESCE(A.DATASET,B.DATASET) as DATASET,
COALESCE(A.VAR_NAME,B.VAR_NAME) as VAR_NAME,
case when A.DATASET="" or A.VAR_NAME="" then "N" else "Y" as IN_BASE,
case when B.DATASET="" or B.VAR_NAME="" then "N" else "Y" as IN_COMP,
from BASE_DATASET A
full join COMP_DATASET B
on A.DATASET=B.DATASET
and A.VAR_NAME=B.VARNAME;
quit;
This will give a full list of all dataset/varname combinations and a flag if its present in either.
Your better off using proc sql, joining the two tables - assuming columns are DATASET, VAR_NAME:
proc sql;
create table MATCHES as
select COALESCE(A.DATASET,B.DATASET) as DATASET,
COALESCE(A.VAR_NAME,B.VAR_NAME) as VAR_NAME,
case when A.DATASET="" or A.VAR_NAME="" then "N" else "Y" as IN_BASE,
case when B.DATASET="" or B.VAR_NAME="" then "N" else "Y" as IN_COMP,
from BASE_DATASET A
full join COMP_DATASET B
on A.DATASET=B.DATASET
and A.VAR_NAME=B.VARNAME;
quit;
This will give a full list of all dataset/varname combinations and a flag if its present in either.
Thank you.
And what if I don't want to see values that are present in both of these datasets?
Change:
and A.VAR_NAME=B.VARNAME;
quit;
To:
and A.VAR_NAME=B.VARNAME
where IN_BASE="N" or IN_COMP="Y";
/* note may need to replace with where CALCULATED IN_BASE="Y"... */
quit;
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