DNA and your family tree … 6-10 generations back

October 17, 2018
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Any of you who are even slightly into politics, or have followed any news lately, have probably seen something about the DNA test Elizabeth Warren took to prove/disprove her Native American ancestry. The test indicates she might have had a Native Ameri...
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Parameter estimates for different parameterizations

October 17, 2018
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Parameter estimates for different parameterizations

In a recent article about nonlinear least squares, I wrote, "you can often fit one model and use the ESTIMATE statement to estimate the parameters in a different parameterization." This article expands on that statement. It shows how to fit a model for one...
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Get the unique values of a variable in data order

October 15, 2018
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Get the unique values of a variable in data order

There are several ways to use SAS to get the unique values for a data variable. In Base SAS, you can use the TABLES statement in PROC FREQ to generate a table of unique values (and the counts). You can also use the DISTINCT...
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Timeline of US Supreme Court Justices

October 11, 2018
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Here in the US, we recently had a new Supreme Court Justice appointed. This is a very important position, and judges usually serve until they retire or die. My buddy Rick gave me a heads-up that there was a table of all the past...
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New technologies and new direction for SAS Press

October 11, 2018
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SAS Press is changing to meet the needs of customers worldwide. The post New technologies and new direction for SAS Press appeared first on SAS Learning Post.
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Fit a growth curve in SAS

October 10, 2018
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Fit a growth curve in SAS

This article shows how to use SAS to fit a growth curve to data. Growth curves model the evolution of a quantity over time. Examples include population growth, the height of a child, and the growth of a tumor cell. This article focuses on...
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Keyword Bookmark Search with SAS Support

October 10, 2018
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I had noticed recently that when I searched for SAS documentation on Google I wasn’t finding the SAS 9.4 documentation pages I wanted. I tweeted about it, found others had the same issue, and that SAS are working to address it. In the interim,...
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How to read multiple text files in SAS

October 9, 2018
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How to read multiple text files in SAS

The SAS INFILE statement can read multiple text files in a single DATA step. Use file name wildcards (like * and ?) and a special FILENAME= option to keep track of which records come from which files.

The post How to read multiple...
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Mapping the clans of Scotland

October 8, 2018
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I attended the Scottish Highland Games this past weekend ... nearby in Scotland County, North Carolina! They put on a great event, with kilt-wearing Scotsmen throwing things, bands playing bagpipes, kids dancing, and clans sharing their family history....
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