| To: | s-news@wubios.wustl.edu |
|---|---|
| Subject: | bs() function |
| From: | Eric yang <yang_eric9@yahoo.com> |
| Date: | Thu, 15 Sep 2005 06:50:37 -0700 (PDT) |
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Dear all, For some unknown reason i'm having difficulties accessing the BEST library in version 7.0. Ideally, I would like to use spline() from the resample library in BEST but not currently possible. So i'm trying to replicate this with the bs(), essentially all i'm after is to calculate a column of first dervatives for my x-values at the known y values using a cublic spline. However, not sure how to convert the output matrix from bs() to the desired output (i.e. just a column of first derivatives).
Would appreciate any help on how to specify the bs() options to do the above.
Thanks in advance.
Eric
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