Hello,
We don't have any way of knowing about folded peaks so this is tricky.
We could know about experiments where folding might occur (although I'm
pretty sure that Analysis ignores this currently) but that is not the same
as knowing which peaks in particular are folded (rather than noise, say).
Currently Tim checks for negative intensities and assumes they are dubious
(if most of the peaks are positive), which is the source of your quality
report problem. Tim points out that you could explicitly make the
intensities (heights and volumes) all positive with the following bit of
code:
>>> peakList = top.argServer.getPeakList()
>>> for peak in peakList.peaks:
... for intensity in peak.peakIntensities:
... intensity.value = abs(intensity.value)
but this might not be something you would want to do.
Wayne
On Tue, 13 Apr 2010, Justin Lecher wrote:
> Hi all,
>
> next problem, when peaks are folded in an noesy their intensity & height
> is negative. Consequently my Quality report marks it as bad. What do I
> have to do to calculate the intensity as a possitiv value.
>
> thanks justin
>
>
> --
> Justin Lecher
> Institute for Neuroscience and Biophysics
> ISB 3 - Institute for structural biochemistry
> Research Centre Juelich GmbH,
> 52425 Juelich,Germany
> phone: +49 2461 61 5385
>
>
>
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