Thanks Ian,

I think this is good enough for what I have in mind. So I did not have to reinvent the wheel after all...

Fred.

Ian Tickle wrote:
Hi Fred

Doesn't sftools do this - from 'man sftools':

   CALC F COL Fsimulated = COL Fcalc ran_g 10 * +
          Create a column with label Fsimulated which contains the value
          of column Fcalc plus 10 times a random number from a Gaussian
          distribution with average = 0 and variance = 1

Cheers

-- Ian

On Fri, Feb 4, 2011 at 12:40 PM, Vellieux Frederic
<frederic.velli...@ibs.fr> wrote:
Before re-inventing the wheel...

Is there anywhere some software (freely available software, I mean) that can
add some Gaussian noise to data. The data is currently stored in a data
column in an mtz (not phase data, but "amplitudes", "sigma values"...) but
can be exported to another format if required.

Before writing a computer program to do this, does anyone know if this can
be done without writing any code. If it can then obviously I won't write new
code.

Thanks,

Fred.



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