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Hi all,

We have a slight problem here with an mtz-file coming from mosflm through sortmtz and destined for scala. scala complains with the following error-message:

Scala:  *** batches not assigned to datasets ***

the (relevant) header info of the input-mtz is:

<quote>
* Base dataset:

       0 HKL_base
         HKL_base
         HKL_base

* Number of Datasets = 1

* Dataset ID, project/crystal/dataset names, cell dimensions, wavelength:

       1 Unspecified
         Unspecified
         Unspecified
            97.7664  165.8147  288.9245   90.0000   90.0000   90.0000
            1.00000
<..snip..>

* Number of Batches = 720

* Column Labels :

H K L M/ISYM BATCH I SIGI IPR SIGIPR FRACTIONCALC XDET YDET ROT WIDTH LP MPART

* Column Types :

H H H Y B J Q J Q R R R R R R R

* Associated datasets :

0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1
</quote>

the problem seems to be the dataset association. Other datasets (that scala willingly processes) integrated identically have an association of all columns with dataset 0; so does the same dataset when less frames are processed.
We tried DNAME/XNAME in mosflm and it made no difference.
trying to fix this problem with CAD doesn't work as it does not like unmerged files and sftools or mtzutils seem to lack the ability to edit dataset associations.

Any ideas what causes this problem?
Any ideas how to fix the file?

Thanks

Jens

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