no Shapiro-Wilk test

[GDzws]

Dear all

I am having trouble with obtaining a normality test result using the Shapiro-Wilk test.

I perform like this:

proc univariate data=bbbbb;
var Weight_kg_Base Height_m_Base Systolic_BP_mmHg_Base Diastolic_BP_mmHg_Base;
histogram Weight_kg_Base Height_m_Base Systolic_BP_mmHg_Base Diastolic_BP_mmHg_Base / normal;
run;

the sample size is 60. But no Shapiro-Wilk test results in my output interface.

I'd really appreciate if anyone could help me.

Thanks in advance.

[FreelanceReinh]

Hello @GDzws and welcome to the SAS Support Communities!

Add the NORMAL option to the PROC UNIVARIATE statement:

proc univariate data=bbbbb normal;

Then you should find the Shapiro-Wilk test results in section "Tests for Normality" of the output (not in the section "Goodness-of-Fit Tests for Normal Distribution") if your sample size is 2000 or less.

[GDzws]

You are right. Thank you so much! Really appreciate!

[Reeza · Accepted solution]

Add the NORMAL option to your PROC UNIVARIATE statement.

NORMAL
NORMALTEST

requests tests for normality that include a series of goodness-of-fit tests based on the empirical distribution function. The table provides test statistics and p-values for the Shapiro-Wilk test (provided the sample size is less than or equal to 2,000), the Kolmogorov-Smirnov test, the Anderson-Darling test, and the Cramér–von Mises test. This option does not apply if you use a WEIGHT statement.

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@GDzws wrote:

Dear all

I am having trouble with obtaining a normality test result using the Shapiro-Wilk test.

I perform like this:

proc univariate data=bbbbb;
var Weight_kg_Base Height_m_Base Systolic_BP_mmHg_Base Diastolic_BP_mmHg_Base;
histogram Weight_kg_Base Height_m_Base Systolic_BP_mmHg_Base Diastolic_BP_mmHg_Base / normal;
run;

the sample size is 60. But no Shapiro-Wilk test results in my output interface.

I'd really appreciate if anyone could help me.

Thanks in advance.

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