Hi All,
I have two tables. I need to join them and connect the columns. Below are the two source tables and the third table is the desired table.
Table 1:
date units loss
jan17 1 $10
feb17 2 8
march17 4 11
Table 2:
march17 2 10
apr17 2 10
may17 1 19
Desired table:
jan17 1 10
feb17 2 8
march17 6 21
apr17 2 10
may17 1 19
Any help will be greatly appreciated. Thanks.
data table1;
input date $ units loss;
datalines;
jan17 1 10
feb17 2 8
mar17 4 11
;
data table2;
input date $ units loss;
datalines;
mar17 2 10
apr17 2 10
may17 1 19
;
proc sort data=table1;
by date;
run;
proc sort data=table2;
by date;
run;
data want;
set table1 table2;
by date;
if first.date then do;sumunits=0;sumloss=0;end;
sumunits+units;sumloss+loss;
if last.date;
run ;
Once you put the tables together, it's just a matter of adding up numbers. For example:
data table3;
set table1 table2;
run;
proc summary data=table3 nway;
var units loss;
class date;
output out=want (drop=_type_ _freq_) sum=;
run;
proc print data=want;
run;
*** EDITED: Sorry, I should have checked this more carefully. Notice the added statement.
Thanks for replaying.
By doing this: data table3;
set table1 table2;
run;
table 3:
jan17 1 10
feb17 2 8
march17 4 11
march17 2 10
apr17 2 10
may17 1 19
And the proc summary step is summing up all the values and giving out just one observation:
N loss
12 68
The output I wanted was a table with march being added up like this:
jan17 1 10
feb17 2 8
march17 6 21
apr17 2 10
may17 1 19
data table1;
input date $ units loss;
datalines;
jan17 1 10
feb17 2 8
mar17 4 11
;
data table2;
input date $ units loss;
datalines;
mar17 2 10
apr17 2 10
may17 1 19
;
proc sort data=table1;
by date;
run;
proc sort data=table2;
by date;
run;
data want;
set table1 table2;
by date;
if first.date then do;sumunits=0;sumloss=0;end;
sumunits+units;sumloss+loss;
if last.date;
run ;
Available on demand!
Missed SAS Innovate Las Vegas? Watch all the action for free! View the keynotes, general sessions and 22 breakouts on demand.
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.