Quoting "Phil Evans" :
Can anyone explain what Zbyszek Otwinowski means by Chi squared?
If I understand properly, CHI**2 value as used in Scalepack is:
SUM(-Ij)**2/SUMsigma(I)**2 (I have to use formula editor to write
it properly, but the idea is clear) and is useful in exhibiting and
det
Can anyone explain what Zbyszek Otwinowski means by Chi squared? I can't find a
definition in any of his papers (though I may have missed it). Is there a
reference?
It doesn't seem obviously related to the chi squared distribution ("In
probability theory and statistics, the chi-square distribut