{"id":12485,"date":"2018-04-06T06:07:05","date_gmt":"2018-04-06T06:07:05","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=12485"},"modified":"2021-05-09T13:16:21","modified_gmt":"2021-05-09T07:46:21","slug":"sas-chi-square-test","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/sas-chi-square-test\/","title":{"rendered":"SAS Chi-Square Test – SAS PROC FREQ"},"content":{"rendered":"

We looked at SAS t-test<\/strong>, correlation<\/strong> and regression<\/strong>, ANOVA<\/strong> in the previous tutorials, today we will be looking at another process called SAS Chi-Square test, how can we create and a two-way chi-square test in SAS Programming Language.<\/p>\n

Moreover, we will discuss some SAS Chi-Square Test examples to under this concept better.<\/p>\n

So, let’s\u00a0start with SAS Chi-Square Test and SAS Proc Freq.<\/p>\n

What is Chi-Square Test in SAS<\/h2>\n

SAS\u00a0Chi-Square test\u00a0of Independence is used to determine if there is a significant relationship between two categorical variables.<\/p>\n

Chi-Square Testing independence determines whether two or more observations across two populations are dependent on each other (that is, whether one variable helps to estimate the other).<\/p>\n

Testing for goodness of fit determines if an observed frequency distribution matches a theoretical frequency distribution. In both cases, the equation to calculate the chi-square statistic is where O equals the observed frequency and\u00a0E<\/em>\u00a0the expected frequency.<\/p>\n

SAS PROC FREQ Procedure<\/h2>\n

We saw the use of PROC FREQ, to create frequency distribution tables, but it can also be used with a CHISQ option to create SAS chi-square test.<\/p>\n

Syntax-<\/strong><\/p>\n

PROC FREQ DATA = dataset;\r\nTABLES variables \/CHISQ TESTP=(percentage values);<\/pre>\n
Here Percentage Values\u00a0in the TESTP statement denotes the percentage of levels of the variable<\/strong>.<\/p>\n
One Way Chi-Square Test<\/h2>\n
In the below SAS Chi-square test example, we consider a SAS chi-square test on the variable named origin in the data set<\/strong> SASHELP.CARS. This variable has three levels and we assign a percentage to each level.<\/p>\n
SAS Chi-Square Test\u00a0Example-<\/strong><\/p>\n
proc freq data = sashelp.cars;\r\ntables origin \/chisq\r\ntestp=(0.35 0.40 0.25);\r\nrun;<\/pre>\n
\"SAS<\/a>
SAS Chi Square Test<\/p><\/div>\n
 <\/p>\n
\"SAS<\/a>
One Way Chi-Square Test Output<\/p><\/div>\n
Two Way Chi-Square Test<\/h2>\n
In this, two variables are used instead of one and the SAS chi-square test is applied on both of them.<\/p>\n
Example-<\/strong><\/p>\n
proc freq data = sashelp.cars;\r\ntables origin*drivetrain \/chisq ;\r\nrun;<\/pre>\n
\"SAS<\/a>
Two Way Chi-Square\u00a0Test Example with Output<\/p><\/div>\n
This was all about Chi-Square Test Tutorial. Hope you like our explanation of one way and two-way chi-square analysis in SAS Programming Language.<\/p>\n
Conclusion<\/h2>\n
Hope you all understood what is a chi-square test and how can we create it in SAS. We also saw a two-way chi-square test in SAS. In conclusion, we saw some SAS Chi-square test examples.<\/p>\n
Furthermore, if you have any query feel free to ask in a comment section.\u00a0and stay tuned to learn more interesting things in SAS.<\/p>\n","protected":false},"excerpt":{"rendered":"
We looked at SAS t-test, correlation and regression, ANOVA in the previous tutorials, today we will be looking at another process called SAS Chi-Square test, how can we create and a two-way chi-square test...<\/p>\n","protected":false},"author":6,"featured_media":12491,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[2500,2501,2502,3081,11957,12148,15925],"class_list":["post-12485","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sas","tag-chi-square-examples","tag-chi-square-test-examples","tag-chi-square-test-in-sas","tag-create-sas-chi-square-test","tag-sas-chi-square-test","tag-sas-proc-freq","tag-what-is-sas-chi-square-test"],"yoast_head":"\nSAS Chi-Square Test - SAS PROC FREQ - DataFlair<\/title>\n<meta name=\"description\" content=\"Chi-square test tutorial- What is SAS Chi-square test, How to run chi-square analysis,SAS Chi-square test example, proc Freq,Two Way & One Way SAS Chi-Square Test\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/sas-chi-square-test\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SAS Chi-Square Test - 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