[sharp-discuss] statistics

[Clemens Vonrhein]

Dear sameeta,

the phasing power can be that large without problems. Depending on
data quality etc it could even be higher.

Now the important question is: do you expect this? Do you have very
good dataset(s) collected on a compound that should give a large
signal at the given wavelength? Then everything is in order. 

But if you collected dodgy data on sulfurs at a rotating anode with
high Rsym, low I/sigma and partial completeness ... well, something
must have gone wrong. Did the refinement actually went all the way to
convergence? What do the residual maps look like? How many sites do
you expect? What resolution? How does the density modification step
perform? If you give a few more details maybe someone can give a bit
more help ...

Cheers

Clemens


On Tue, Feb 19, 2002 at 11:34:17AM +0000, sameeta bilgrami wrote:
> dear all,
>       i ran autosharp for a Th derivative. it is
> giving phasing power as 0.7340E+01, which according to
> me is 7.34. What is going wrong ..am i wrong in
> reading 0.7340E+01 as 7.34. If not , then can the
> phasing power be so much ...where can i be going
> wrong. My space group is i4122 and the program has
> found one site.
>                 thanking you,
>                        sameeta
> 
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