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A comment on R: the good parts. Parent comment

Re:R: the good parts by bokchoi on Monday April 07, 2014 @11:23AM (#7546988)
SAS has missing values as well and goes further -- there are multiple types of missing values (ie, "not available", "doesn't pass quality control review", etc.) We added missing values to our product to interop with both R and SAS:

https://www.labkey.org/wiki/home/LabKey%20Server%20Documenta...

(Pardon the extremely old screenshots.)

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Re:R: the good parts by hadley on Monday April 07, 2014 @01:19PM (#7547857)
In SAS, beware that missing values are treated as the smallest possible value (e.g. -Inf). This means that statements like x < 10 return true if x is missing.
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Re:R: the good parts by lsiebert on Monday April 07, 2014 @02:31PM (#7548329)
Oh god yes, and it will bite you if you don't know it. That takes me back to cleaning SAS data.
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Re:R: the good parts by pitnips on Tuesday April 08, 2014 @01:56PM (#7554924)
But R is free!
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