Diederichs Novel R available in CCP4?
pre at mrc-lmb.cam.ac.uk
Thu May 29 05:13:35 EST 1997
Kay Diederichs wrote:
> sorry, no CCP4 data accepted currently).
I've put the calculation of R_meas & PCV into the most recent version of
Scala, available from ftp://ftp.mrc-lmb.cam.ac.uk/pub/scala_2.2.3.tar.gz
This will also be in the next CCP4 release 3.3, due in July (DV)
The calculation is slightly different from that in Diederichs & Karplus
program, as I compare observations to the weighted rather than the
unweighted mean. I also have not put in a calculation of "R_mergd" as
I'm not totally convinved about the division of observations into random
subsets for this statistic (maybe because I don't understand it
The <I/sd> has always been in the Scala output, and remains I believe
the most useful statistic for deciding how far the data really go.
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