Tensor in SAS

December 10, 2009
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Tensor, a math concept for high order array, is a very useful tool in modern data mining applications. HOSVD, the counter part of SVD in higher order array, is at the heart of modern applications, such as face recognition and clustering, segmentation...
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Some Fun with SAS and Perl Regular Expressions

December 9, 2009
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This post assumes you have a little understanding of how regular expressions work and specifically how SAS implements regular expressions. I recently did something like this and thought it would be good to share. Suppose you have a program that search...
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DO Loops: Useful Tool in SAS User’s Toolbox

December 9, 2009
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DO Loops in SAS are outside the scope of what most beginning users feel comfortable tackling. However, they are a powerful, time-saving tool in the report writer’s toolbox. For those unfamiliar with programming, loops are a set of instructions that the programmer tells the computer to repeat until predefined condition(s) are true. It’s a...
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Finding 9.2 Content

December 8, 2009
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support.sas.com is loaded with detailed information about SAS 9.2. (I'll include a few references at the end of this post.) We heard you say that you were looking for more generic information about SAS 9.2; the 5,000 foot view if you will. I pi...
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SAS 9.2 and Marketing Optimization 5.3 Deployment – A personal story

December 4, 2009
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Contributed by Dwight Mouton, Customer Intelligence Product Management, SAS I would consider myself a SAS User rather than an "IT" type, which adds two perspectives to my story. First, there will be a little less detail than what my Sales Engine...
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Work With Oracle: A Quick Sheet for SAS Programmers

December 4, 2009
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(Note: All the followings are tested on Windows XP environment.) 0. Install Oracle Database 10g Express Edition Fast (and free) to download, easy to deploy and simple to admin–for learning and testing purpose, Oracle Database 10g Express Edition (Oracle Database XE, a mini version of Oracle Database 10g Release 2) are strongly recommended: 0.1 Download it...
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SAS INTNX function ( add days, months, years, etc )

December 3, 2009
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SAS INTNX function ( add days, months, years, etc )

The INTNX function increments dates, times, or datetimes by specific or custom intervals. Here is the basic syntax for INTNX: INTNX(interval, start, increment) The interval can be a set value like – DAY, WEEK, DTWEEK, YEAR, etc. You can also specify a custom interval. We will post more on that later. The multiple...
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Side Projects

December 3, 2009
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A few years ago I created a site that lets users donate their SAS expertise by creating online documentation. Users could put in their own example code, explain potential pitfalls, share tips, etc. I coded it all by hand in Perl with MySQL, JavaScript ...
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Applying Delta Method in SAS

December 1, 2009
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Delta method is a method in statistics for deriving an approximate probability distribution for a function of an asymptotically normally distributed random variable from knowledge of the limiting variance of that random variable. See "http://en.wiki...
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