Finding RMS of a distribution

[tennant]

Hi,

So I have SDDS files with beam projections and would like to determine the rms width (for emittance analysis). How do I accomplish that with sddsprocess? I've tried something like sddsprocess -process=col,rms,name but it's not the rms width.

Thanks,
chris

[Joytop]

Hi, I want to achieve the similar goal as you : I want to know the size of a pixel on the image of x-y produced by sddsplot from a file that comes from a Watch in *.lte . Do you know how can I get it ? If you know , please help me. Thanks a lot for your reading my message.

Regards!

Coral.