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User Technical Support
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Patch for StatXact 5 (version 5.0.3)
Bug fixes for the following procedures have been introduced in StatXact 5.0.3:
- Statistics - Two Binomials - Barnard's Test for Superiority
- Power & Sample Size -- Two Binomials: Non Inferiority: Sample Size
- Statistics - Two Independent Samples - Hodges-Lehmann Estimates
- Statistics - Two Ordered Multinomials - Test for Interaction across Strata
- Statistics - Poisson Rates - CI on Common Relative Risk
(Note that the version number remains as 5.0.3, after applying this patch.)
Installation instructions
You will need a decompression utility to install the StatXact 5.0.3 Patch. If you do not have one, we recommend that you get WINZIP from the WINZIP website or PKUNZIP from the PKWARE website. To install the patch, follow these steps:
- Download the StatXact503Patch.zip file. The file is a zipped file which contains all six bug fix patch files to be extracted into your StatXact directory.
- Save the file in a temporary directory. After the download is complete, go into that directory and open StatXact503Patch.zip using WINZIP or PKUNZIP.
- If you use WINZIP, the following dialog box appears.
Click on the "Extract" button.
- The "Extract" window appears on the screen. Select the folder in which you have installed StatXact 5 (in this case, we selected "D:\Program Files\StatXact5").
Click on the "Extract" button.
-
The following dialog box appears.
Click on the "Yes to All" button.
-
Close WINZIP.
Statistics - Two Binomials - Barnard's Test for Superiority
Bug:
In certain situations of 2x2 data, the Exact 1-sided p-value was not consistent when the columns of data were interchanged.
Example data:
Set 1 Set 2
60 10 10 60
40 0 0 40
Exact 1-sided p-value
Set 1 Set 2
Before the bug fix: 0.0110 0.0376
After the bug fix : 0.0110 0.0110
The bug fix patch file: engtwobi.dll
Power & Sample Size -- Two Binomials: Non Inferiority: Sample Size
Bug:
When delta 0 =0 and for certain combination of other parameter values, the estimation of sample size was incorrect.
Example: Alpha=0.025, Beta=0.80, delta 0 =0, Pi 2 =0.6, Pi 1 =0.7
Sample Size Estimate
Before the bug fix: 250
After the bug fix : 355
The bug fix patch file: engssize.dll
Statistics - Two Independent Samples - Hodges-Lehmann Estimates
Bug:
For certain types of data, the Confidence Interval limits for theta were computed incorrectly.
Example data:
GROUP RESPONSE
1 10
1 12
1 10
1 9
2 9
2 13
2 10
2 6
95.00% Confidence Interval for Theta :
Before the bug fix:
Asymptotic : ( 0.0000 , +Inf)
Exact : ( Invalid , Invalid)
After the bug fix:
Asymptotic : ( -3.000 , 4.000)
Exact : ( -Inf , +Inf)
The bug fix patch file: hl_eng.dll
Statistics - Two Ordered Multinomials - Test for Interaction across Strata
Bug: For stratified data, in certain situations, the program crashed. Example:
! Table 1 of 3
!----------------------------------------!
| Table1 | col1 | col2 |
|------------|-------------|-------------|
| row1 | 12 | 9 |
| row2 | 10 | 8 |
|------------|-------------|-------------|
! Table 2 of 3
!----------------------------------------!
| Table2 | col1 | col2 |
|------------|-------------|-------------|
| row1 | 15 | 17 |
| row2 | 5 | 3 |
|------------|-------------|-------------|
! Table 3 of 3
!----------------------------------------!
| Table3 | col1 | col2 |
|------------|-------------|-------------|
| row1 | 19 | 19 |
| row2 | 0 | 0 |
|------------|-------------|-------------|
Before the bug fix: The program crashed.
After the bug fix : The program gives correct results.
The bug fix patch file: engs2xci.dll
Bug:
For certain types of data, the Exact p-value (2-sided) computed under Method-3 was incorrect.
Example:
Events count : 145 68
Rate Multiplier: 4 1
Exact p-value (2-sided)
under Method-3
Before the bug fix: 1.0
After the bug fix : 0.0
The bug fix patch files: po_eng.dll & engscorp.dll
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