mtest: Independent two groups t-test similar to PROC TTEST with...

In sasLM: 'SAS' Linear Model

Independent two groups t-test similar to PROC TTEST with summarized input

Description

This is comparable to SAS PROC TTEST except using summarized input (sufficient statistics).

Usage

  mtest(m1, s1, n1, m0, s0, n0, conf.level=0.95)

Arguments

m1	mean of the first (test, active, experimental) group
s1	sample standard deviation of the first group
n1	sample size of the first group
m0	mean of the second (reference, control, placebo) group
s0	sample standard deviation of the second group
n0	sample size of the second group
conf.level	confidence level

Details

This uses summarized input. This also produces confidence intervals of means and variances by group.

Value

The output format is comparable to SAS PROC TTEST.

Author(s)

Kyun-Seop Bae [e-mail]

See Also

TTEST, tmtest, ztest

Examples

  mtest(5.4, 10.5, 3529, 5.1, 8.9, 5190) # NEJM 388;15 p1386

sasLM documentation built on Nov. 19, 2023, 5:12 p.m.