On 11/12/10 12:00, Wayne Boucher wrote:
> Hello,
>
> It is a 32-bit / 64-bit problem (a C "long" used to be 4 bytes but is now
> 8). When I sorted that out with a quick hack then the 2D processed ok.
> Well, the phasing was off and the spectrum might be cycled by npts/2 in
> D2, but otherwise looked plausible. I'll sort it out properly and send
> you the patch (it will need re-compiling though of course).
Cool, I compiled it for for 32bit and it seems fine now. But
nevertheless a 64bit patch would be nice.
> On the baseline front, I'll look at that paper on Monday (hopefully it can
> be looked at online).
Yes it is accessible. For everyone, I asked Wayne for support of the
baseline correction which was published by Dietrich et al [1].
But from my test here it looks as the baseline distortion which I am
always fighting with is something which was introduced by nmrpipe's FT.
A simple
dim 1
weighting > zerofill > FT
dim2
weighting > zerofill > FT
gives my some sort of baseline distortion which can not be seen in vnmrj
processed spectras. I also not with azara!
justin
[1]
Dietrich, W.; Rudel, C.H.; Neumann, M.
Fast and Precise Automatic Baseline Correction of One- and
Two-Dimensional NMR Spectra
J. Magn. Reson., 1991, vol. 91, pages 1-10
--
Justin Lecher
Institute of Structural Biology and Biophysics
ISB-3 Structural Biochemistry
Research Centre Juelich
52425 Juelich, Germany
phone: +49 2461 61 2117
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