SAS DIF function – Comparing previous records

October 23, 2009
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The SAS DIF function is another useful tool for operating on previous records. Lets say you want to know the difference in the last year’s revenue and this year’s revenue. Here is the data: Year          Revenue 2001           10,000 2002          30,000 2003          60,000 2004          100,000 data revenue1; set revenue; Rev_increase=dif1(revenue); run; Year          Revenue         Rev_increase 2001          ...
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The man behind the curtain: SAS Deployment Wizard

October 12, 2009
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More questions answered: Q: I'm looking for a simple install guide for 9.2 A: I couldn't answer the question about why SAS 9.2 has different installation documentation, so I enlisted the help of Fred Perry who is a major contributor of content to ...
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Answering the questions from the feedback forms

October 9, 2009
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We have recently added feedback forms and short surveys on some pages on support.sas.com. We don't ask for your e-mail address or require you to log in to the site. That means that all of the comments are anonymous. We think the ease of commenti...
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Tweak PROC FASTCLUS for 1-Nearest Neighbor / Closest Match

September 23, 2009
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In most table lookup tasks, we are doing EXACT matching. However, sometimes we are looking for closest match in the lookup table. By 'closest', we mean smallest Eucleadian distance: ||X-Y||2 Typically we have to manually code the search function ...
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SAS: “The query requires remerging summary statistics back with the original data”

September 22, 2009
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Coming from a background writing SQL code directly for “real” RDBMS (Microsoft SQL Server, MySQL, and SQLite), I was initially confused when SAS would give me the following ‘note’ for a simple summary PROC SQL query: 429 proc sq...
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Get your graph questions answered

September 19, 2009
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Get your graph questions answered

We launched a new discussion forum at the end of August. The SAS/GRAPH and ODS Graphics forum provides a place to discuss the visual representation of data, to share your questions, suggestions, experiences, and pains regarding graphics. Join the...
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A beautiful morning in Vermont

September 14, 2009
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I'm in Burlington, VT for NESUG 09. I've never been here, so I got up early this morning to go for a short run to clear my head for a day on the demo floor and to get a look around. I found my way to Battery Park...
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Telecommuting

September 8, 2009
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If you work in a large city there is a good chance you have to commute to work. It is also likely that your commute time is non-trivial. Here in Los Angeles it is not uncommon for people to spend over an hour in their car everyday. No fun!If you sea...
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SVD Filtered Temporal Usage Pattern Analysis and Clustering

September 6, 2009
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