Ttest2p

Purpose

Two sample paired t-test.

Synopsis

result = ttest2e(x,y,test)

Description

Calculates a two sample paired t-test for samples (x) and (y).

Inputs

• x = matrix (column vector) in which the sample data is stored.

• y = matrix (column vector) in which the sample data is stored.

• ttest = [-1,{0},1] indicates what ttest is for:

• -1 - lower tail H0: mean(x) <= mean(y)

• 0 - wo-tail H0: mean(x) \~= mean(y) {default}

• 1 - upper tail H0: mean(x) >= mean(y)

Outputs

The output (result) a structure with the following fields:

• t = test statistic.

• p = probability value

• mean = mean of x - y

• var = variance of x - y

• n = length of x - y

• se = standard error

• df = degress of freedom

• hyp = hypothesis being tested

Examples

result = ttest2p(x,y);

result = ttest2p(x,y,test);

See Also

ttest1, ttest2e, ttest2u