PROC REPORT and caculating rates

[Garpe]

Hello, 

I am trying to use the PROC REPORT for the first time. I would like to describe the number of people registered for a game in comparison with the number of people interviewed, depending on the country and the week. In fact, I would like to build a table with 3 columns (CF attachment) for each week: 

- number of registrants

- number of contacted

- registration rates (number of people registered divided by the number of people interviewed)

Some data: 

data test;
input week country $ inscrip;
datalines;
45 france 1
45 france 1
45 france 0
45 espagne 1
45 espagne 0
45 espagne 0
45 espagne 0
45 espagne 0
46 france 1
46 france 1
46 france 1
46 france 0
46 france 0
run;

Here is the code. I can display the columns of people registered and contacted for each week and by country. However, I can't display registration rates for each week. 

PROC REPORT data=test nowindows completerows;
columns COUNTRY (WEEK, (INSCRIP n RATE))(INSCRIP n RATE);
define COUNTRY / group ;
define WEEK / across;
define INSCRIP / analysis sum;
define n / "Registrants";
define RATE / computed format=NLPCTN12.2;
compute RATE;
RATE=inscrip.sum/n;
endcomp;
rbreak after / summarize;
RUN;

The error is: "ERROR: COMPUTED conflicts with earlier use of taux". Is there any solution ?

Many thanks in advance. 

Garpe

[ballardw · Accepted solution]

It may help to show the expected results for your given data.

You may consider:

PROC REPORT data=test nowindows completerows;
columns COUNTRY WEEK, (INSCRIP,( n mean));
define COUNTRY / group ;
define WEEK / across;
define INSCRIP / analysis ;
define mean/ format=percent8.1 "Rate";
define n / "Adresses";
rbreak after / summarize;
RUN;

The Mean of a 0/1 coded variable is the percent of 1 values.

[Garpe]

Many thanks (the expected results is on attachment) ! That's exactly what I need. Now the solution seems obvious ! 

However I have a last question... I have difficulties with the cross and I don't know how to add a column (next to the contacted and the registration rate column) with the registrants by country and week, a suggestion ?

[EDIT]

I don't know if this is the optimal solution but the following code runs

PROC REPORT data=test nowindows completerows;
columns COUNTRY WEEK, (INSCRIP INSCRIP,( n mean));
define COUNTRY / group ;
define WEEK/ across;
define INSCRIP / analysis ;
define mean/ format=percent8.1 "Rate";
define n / "Contacted";
rbreak after / summarize;
RUN;

Thanks again.

Garpe 

[ballardw]

If I understand your question here's a hint: The SUM of a 0/1 coded variable is the number of 1's. perhaps you just want to add SUM in an appropriate location.

[Garpe]

Yes, I was thinking about adding a SUM but there were errors in my code. I tried again thanks to your post and I finally found a solution: 

PROC REPORT data=test nowindows completerows;
columns country WEEK, (INSCRIP,(sum n mean));
define COUNTRY / group ;
define WEEK / across;
define INSCRIP / analysis ;
define mean/ format=percent8.1 "Rate";
define n / "Adresses";
rbreak after / summarize;
RUN;

Thanks, it will help me a lot!

Garpe