topic Re: How to create an output including row & total percentages from a 2 by 2 frequency table &amp in SAS Programming

How to create an output including row & total percentages from a 2 by 2 frequency table & Stats

Merto — Fri, 07 Oct 2016 18:58:59 GMT

I have ran FREQ Procedure to get a 2 by 2 frequency table and Chi Square Statistics for 20 measures. I'd like to create an output to include only row percentages for each category and total percentages from the frequency table, and Pearson chi-square statistics together. Now I only generated an output for Chi Square Stats. Is there any functions I can use to get the final result like the table below? Thanks a lot in advance.

MEASURE_ID	N	_PCHI_	P_PCHI	CATEGORY_1_PCT_ROW	CATEGORY_2_PCT_ROW	TOTAL _PCT_ROW
2	75	0.698578	0.40326191
3	16255	0.020613	0.88583941
4	2400	2.289016	0.13029252

PROC FREQ DATA = DATASET;

BY MEASURE_ID;

TABLE ETHNICITY * COMP_IND/CHISQ ;

OUTPUT OUT=ChiSqData_V1 N PCHI;

WEIGHT COUNT;

RUN;

PROC PRINT DATA=ChiSqData_V1 noobs ;

RUN;

Re: How to create an output including row & total percentages from a 2 by 2 frequency table &

ballardw — Fri, 07 Oct 2016 19:29:36 GMT

You may need to provide some example data with calculated percentages as you need them. I am not sure at the moment what CATEGORY_1_PCT_ROW is actually. OR as a very bare minimum provide what is included in the numerator and denominator for the percentages. You may well have to have more than one data set and combine them.

You can get the row and column percentages by using the OUT= option on the TABLES statement with OUTPCT. Depending on what you are doing OUTEXPECT to get the expected frequency used in chi-square calculations may be helpful.

Re: How to create an output including row & total percentages from a 2 by 2 frequency table &

Merto — Fri, 07 Oct 2016 21:08:11 GMT

Thank you ballardw. I tried the OUT= option on the TABLES statement with OUTPCT, but it only gives me the row and column percentages, but not the total percentages. For example, I would like to have the compliance rates (row percentages) of non_white (90.24%) and white (76.47%), and the total compliance rate (84%) according to the table below.

My question number 1 will be: how can I get the total percent (84%) as well?

Question number 2 is: in order to put values in the format below, is there a pivot function in proc sql that allows me to transpose data?

MEASURE_ID	N	_PCHI_	P_PCHI	NON_WHITE_PCT_ROW	WHITE_PCT_ROW	TOTAL _PCT_ROW
2	75	0.698578	0.40326191

Re: How to create an output including row & total percentages from a 2 by 2 frequency table &

Ksharp — Sat, 08 Oct 2016 03:49:24 GMT

Can you post your data and the output.

I think you can use SQL to get that row_pct , after using proc freq to get that Chisquare,

you can combine them together into one table.