# 2.13.2.2 rowttestpair (Pro)

Statistics: Hypothesis Testing: Pair-Sample t-test on Rows.

## Brief Information

Perform a pair-sample t-test on rows

Minimum Origin Version Required: Origin 2015 SR0

## Command Line Usage

 

1. rowttestpair irng1:=(1,2,3) irng2:=(4,5,6); 

2. rowttestpair irng1:=(1,2,3) irng2:=(4,5,6) prob:=1; 

3. rowttestpair irng1:=(1,2,3) irng2:=(4,5,6) sig:=wcol(7); 

## Variables

Display
Name
Variable
Name
I/O
and
Type
Default
Value
Description
1st Data Range irng1

Input

Range

<unassigned>

Specify data range(multiple columns) of the first sample. Each row represents a data variable.

2nd Data Range irng2

Input

Range

<unassigned>

Specify data range(multiple columns) of the second sample. Each row represents a data variable.

Test Mean mean

Input

double

0

Hypothetical difference between the means of the two samples

Alternate Hypothesis tail

Input

int

0

Specify the alternative hypothesis of the t-test.

Option list:

• two:Mean1 - Mean2 <> 0
Specify the alternative hypothesis is that if the means of the two samples are equal or not.
• upperl:Mean1 - Mean2 > 0
Specify the alternative hypothesis is that if the mean of the sample 1 is greater than the mean of sample 2.
• lower:Mean1 - Mean2 < 0
Specify the alternative hypothesis is that if the mean of the sample 1 is less than the mean of sample 2.
T-statistic statistic

Output

vector

<new>

Select to output the t-statistic, and you can specify the column for the values. Each row represents the t-statistic of the data in the row.

Degree of Freedom df

Output

vector

<new>

Select to output the degree of freedom, and you can specify the column for the values. Each row represents the degree of freedom of the data in the row.

P-value prob

Output

vector

<new>

Select to output the p-value, and you can specify the column for the values. Each row represents the p-value of the data in the row.

Significant sign

Output

vector

<new>

Select to output the flag of decision and specify the column for the values. the value equals to 1 indicates that the difference of the means is significant at the 0.05 level, 0 indicates that the means are not significant different at the 0.05 level

## Description

The pair-sample t-test analysis tests whether or not the means of two paired (or related, matched) samples from a normal distribution are equal or whether they differ by a given value.

This function performs pair-sample t-test for the rows. The data of both samples is set in one row to perform the pair-sample t-test of this row.