One quick thought is - are you trying to scale reflections that don't really exist? I.e are you trying to push your resolution a bit too much?
Sent from my iPhone
On 6 Apr 2012, at 20:29, "Yuri Pompeu" <[log in to unmask]> wrote:
> Hi everyone,
> Sorry for the newbie type problems, but I am just starting to use ccp4 for data processing.
> Here is my problem.
> After I index and integrate my images using iMOSFLM, I end up with the .mtz files that contains, AIUI, unmerged reflections.
> Next I should try to merge and scale experimental intensities, using SCALA.
> I am getting an error saying:
> **** Giving up
> Scala: **** Negative Scales ****
> task failed.
> Anything obvious I am missing?
> thanks a lot.