Title: Partial Least Squares

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Type of Tool	SAS Macro
Title	Partial Least Squares
Programmer/Email	Danh Nguyen
Contributing Site	Davis
Description	This file contains some sample SAS codes to run partial least squares (PLS). The codes below 1. read in a matrix of gene expression values of size n x p (here p=3846) and a vector of class indicator (0 or 1) and 2. run PROC PLS. The expression matrix here is SPACE delimited. If your expression matrix is TAB delimited (or another type), change the the line: delimiter=' ' (space) to delimitor=''(tab), etc. Comments can be found below along with the codes. For details on PLS see the SAS documentation for PROC PLS (pp.2691-2734), SAS/STAT User's Guide, Version 8, SAS Institute Inc. (1999). Many examples are given there. The data set OUTPLS includes the variables xscr1-xscr&lv, which are the PLS gene components. You can run your favorite classification routine in SAS, such as PROC LOGISTIC or PROC DISCRIM, or you can save the PLS gene components and input it into your favorite program.
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Software Program	SAS
Software	SAS
Macro Parameters	N/A
R-Code - Attachment
R-Code
SAS-Code - Attachment	Davis_Partial Least Squares_Main Macro
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Notes1-Legend	Section with calls to needed macros
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Notes2-Legend	Macro call with fully specified parameters
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Notes3-Legend	Section with definitions of global macro parameters
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Notes4-Legend	Section with definitions of local macro variables
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Permission	Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT OLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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This topic: CTSpedia > WebHome > StatToolsHome > StatToolsTopic011
Topic revision: 21 Jun 2012, MaryBanach

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