FDA’s Official List of Validation Rules for SDTM compliance

November 20, 2014
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Yesterday, FDA published its first official list of validation rules for CDISC SDTM. These long awaited rules cover both conformance and quality requirements, as described in the FDA Study Data Technical Conformance Guide. Conformance validation rules ...
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New Permissions in SAS 9.4 M2: ManageCredentialsMetadata & ManageMemberMetadata

October 16, 2014
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SAS® 9.4 M2 was released recently and included some new permissions related to identity administration. These new permissions are ManageMemberMetadata (MMM), for groups and roles, and ManageCredentialsMetadata (MCM), for users and groups. I found them documented in the SAS 9.4 Intelligence Platform: Security Administration...
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Shaping support.sas.com with your help

August 28, 2014
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This post was kindly contributed by Key Happenings at support.sas - go there to comment and to read the full post. You may have seen the many pleas and reminders for you to take the survey and help improve support.sas.com. You may be wondering...
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R Passes SPSS in Scholarly Use, Stata Growing Rapidly

August 20, 2014
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R Passes SPSS in Scholarly Use, Stata Growing Rapidly

by Robert A. Muenchen Here is my latest update to The Popularity of Data Analysis Software. To save you the trouble of reading all 25 pages of that article, the new section is below. The two most interesting nuggets it contains are: … Continue reading...
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Example 2014.6: Comparing medians and the Wilcoxon rank-sum test

June 12, 2014
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Example 2014.6: Comparing medians and the Wilcoxon rank-sum test

This post was kindly contributed by SAS and R - go there to comment and to read the full post. A colleague recently contacted us with the following question: “My outcome is skewed– how can I compare medians across multiple categories?” What they were...
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Remove tabs from SAS code files

June 10, 2014
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Remove tabs from SAS code files

This post was kindly contributed by DATA ANALYSIS - go there to comment and to read the full post. By default, SAS records the indent by pressing the tab key by tab, which causes many problem to use the code files under a different...
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Find your stuff with My SAS

June 3, 2014
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I am forever putting something down and not remembering what I did with it.  I solved this problem for my keys by putting a cute little froggy key hook next to the door. My keys go there as soon as I get home. But...
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Use recursion and gradient ascent to solve logistic regression in Python

May 21, 2014
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Use recursion and gradient ascent to solve logistic regression in Python

This post was kindly contributed by DATA ANALYSIS - go there to comment and to read the full post. In his book Machine Learning in Action, Peter Harrington provides a solution for parameter estimation of logistic regression . I use pandas and ggplot to realize a recursive alternative. Comparing with the...
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Public Types Explorer

May 6, 2014
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Did you know that the SAS metadata server also provides metadata about metadata? Metadata about well known SAS metadata object types (public types) is available in the Foundation metadata repository and includes information about the applicability of the various metadata permissions. To help SAS...
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