Usage Note 22223: How can I estimate parameters, test the fit, or generate values from Johnson distributions?
The following SAS/QC sample library programs
generate values from each of the Johnson SU, SB, and SL systems of
distributions, estimate the parameters of the distribution from the
generated data, compute the Cpk index, and draw a high-resolution
histogram overlaid with the fitted Johnson distribution curve. SAS/IML and SAS/QC (PROC CAPABILITY) are required.
- Johnson System of Distributions — SU System
- Johnson System of Distributions — SB System
- Johnson System of Distributions — SL System
- Compute Cpk from Johnson SU Distribution
- Compute Cpk Using Johnson SB Distribution
- Compute Cpk Using Johnson SL Distribution
The sample program titled "Johnson System of Distributions — Macro" contains a macro that uses SAS/IML to choose the proper system and estimates the parameters of the distribution.
However, no test of the model fit is done.
Operating System and Release Information
| SAS System | SAS/QC | All | n/a | |
| SAS System | SAS/IML | z/OS | | |
| OpenVMS VAX | | |
| Microsoft® Windows® for 64-Bit Itanium-based Systems | | |
| Microsoft Windows Server 2003 Datacenter 64-bit Edition | | |
| Microsoft Windows Server 2003 Enterprise 64-bit Edition | | |
| Microsoft Windows XP 64-bit Edition | | |
| Microsoft® Windows® for x64 | | |
| OS/2 | | |
| Microsoft Windows 95/98 | | |
| Microsoft Windows 2000 Advanced Server | | |
| Microsoft Windows 2000 Datacenter Server | | |
| Microsoft Windows 2000 Server | | |
| Microsoft Windows 2000 Professional | | |
| Microsoft Windows NT Workstation | | |
| Microsoft Windows Server 2003 Datacenter Edition | | |
| Microsoft Windows Server 2003 Enterprise Edition | | |
| Microsoft Windows Server 2003 Standard Edition | | |
| Microsoft Windows XP Professional | | |
| Windows Millennium Edition (Me) | | |
| Windows Vista | | |
| 64-bit Enabled AIX | | |
| 64-bit Enabled HP-UX | | |
| 64-bit Enabled Solaris | | |
| ABI+ for Intel Architecture | | |
| AIX | | |
| HP-UX | | |
| HP-UX IPF | | |
| IRIX | | |
| Linux | | |
| Linux on Itanium | | |
| OpenVMS Alpha | | |
| OpenVMS on HP Integrity | | |
| Solaris | | |
| Solaris for x64 | | |
| Tru64 UNIX | | |
*
For software releases that are not yet generally available, the Fixed
Release is the software release in which the problem is planned to be
fixed.
| Type: | Usage Note |
| Priority: | low |
| Topic: | Analytics ==> Distribution Analysis
Analytics ==> Descriptive Statistics
SAS Reference ==> Procedures ==> CAPABILITY
Analytics ==> Process Capability Analysis
|
| Date Modified: | 2008-07-24 13:36:42 |
| Date Created: | 2002-12-16 10:56:36 |
