topic Association Rules Matrix in SAS Programming

Association Rules Matrix

alorenzo — Tue, 12 Jun 2018 17:39:33 GMT

Hello everyone,

I'm using SAS Base/ SAS Enterprise Guide and I'm stuck.
I need to create the Association Rules matrix to calculate the support, lift, confidence and other association metrics.

My table is similar to: (one line per client with all the products associated to)

data test;
input item1 item2 item3 item4 ;
datalines ;
1 0 1 0
1 1 1 0
1 0 1 0
1 0 1 1
;

As you know for the market basket analysis I want something like that:

item1 item2 item3 item4

item1 4 1 4 1

item2 1 1 1 0

item3 4 1 4 1

item4 1 0 4 4

Thank you for your help.

Re: Association Rules Matrix

Reeza — Tue, 12 Jun 2018 17:45:39 GMT

Here's a nifty little trick using PROC CORR:

data test;
input item1 item2 item3 item4 ;
datalines ;
1 0 1 0
1 1 1 0
1 0 1 0
1 0 1 1
;

ods output sscp=want;
proc corr data=test sscp;
var item1-item4;
run;

proc print data=want;
run;

PS. Thank you for providing sample data as a data step!

@alorenzo wrote:

Hello everyone,

I'm using SAS Base/ SAS Enterprise Guide and I'm stuck.
I need to create the Association Rules matrix to calculate the support, lift, confidence and other association metrics.

My table is similar to: (one line per client with all the products associated to)

data test;
input item1 item2 item3 item4 ;
datalines ;
1 0 1 0
1 1 1 0
1 0 1 0
1 0 1 1
;

As you know for the market basket analysis I want something like that:

          item1 item2 item3 item4

item1 4         1       4        1

item2   1         1 1    0

item3    4        1       4        1

item4    1         0      4        4

Thank you for your help.

Re: Association Rules Matrix

Reeza — Tue, 12 Jun 2018 17:47:07 GMT

This may be of interest as well: http://clarioanalytics.github.io/marketbasket/

Re: Association Rules Matrix

alorenzo — Tue, 12 Jun 2018 19:54:55 GMT

THanks a lot it's perfect