2.13.4.2 kstest2(Pro)
Menu Information
Statistics: Nonparametric Tests: Two Sample Kolmogorov-Smirnov Test
Brief Information
Perform a two-sample Kolmogorov-Smirnov test
Additional Information
This feature is for OriginPro only.
Command Line Usage
1. kstest2 irng:=(col(a),col(b));
2. kstest2 -r 2 type:=1 irng:=(col(a),col(b)) tail:=lower;
3. kstest2 irng:=(col(a),col(b)) tail:=upper rt:=<new name:=KS>;
X-Function Execution Options
Please refer to the page for additional option switches when accessing the x-function from script
Variables
Display
Name
|
Variable
Name
|
I/O
and
Type
|
Default
Value
|
Description
|
| Input Data Form
|
type
|
Input
int
|
0
|
Specify the input data form.
Option list:
- Indexed
- Input data range, includes input data and group
- Example:
- kstest2 (1,2)
- In this example, the input group range should be stored in the first column, and the input data range should be stored in the second column.
- Raw
- Select two independent columns as input data.
|
| Input
|
irng
|
Input
Range
|
<active>
|
Specify input data range.
- 0= Group Range
- 1= Data Range
|
| Null Hypothesis
|
null
|
Input
string
|
0
|
The null hypothesis to be tested. This string is not editable, and changes according to the selected Alternate Hypothesis.
|
| Alternative Hypothesis
|
tail
|
Input
int
|
Radio
|
Indicate whether an upper, lower, or two-tailed KS-test should be performed
Option list
- 0=Radio:two:Median1 <> Median2
- Performs a 2-tailed KS-test
- 1=upper:Median1 > Median2
- Performs an upper-tailed KS-test
- 2=lower:Median1 < Median2
- Performs an lower-tailed KS-test
|
| Significance Level
|
alpha
|
Input
double
|
0.05
|
Specify the significance level of the test.
|
| Output Results
|
rt
|
Output
ReportTree
|
[<input>]<new>
|
Specify the output result sheet, which includes Notes table, Descriptive table, Freqs table and Test Statistics table.
|
Examples
- To perform a two-tailed two-sample KS-test on columns 1 and 2 of the active worksheet , using default settings:
kstest2 irng:=(col(a),col(b));
- To perform a upper-tailed two-sample KS-test on columns 1 and 2 of the active worksheet, use the script command:
kstest2 irng:=(col(a),col(b)) tail:=1;
- To perform a lower-tailed two-sample KS-test on columns 1 and 3 of the active worksheet, and save the result table with the name as KS, use the script command:
kstest2 irng:=(1,3) tail:=2 rt:=<new name:=KS>;
Of course, the name, such as KS, you can define it by yourself.
More Information
For more information, please refer to our User Guide.
References
Nag C Library Function Document: nag_2_sample_ks_test(g08cdc)
Related X-Functions
mwtest, ttest2
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