# where is the missing group(s)?

**URL:** <https://forum.mothur.org/t/where-is-the-missing-group-s/97>\
**Category:** Commands in mothur\
**Created:** [January 14, 2010, 9:32am UTC](https://forum.mothur.org/t/where-is-the-missing-group-s/97 "2010-01-14T09:32:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![legendgp](https://avatars.discourse-cdn.com/v4/letter/l/cab0a1/32.png) [@legendgp](https://forum.mothur.org/u/legendgp)\
**Post date:** [January 14, 2010, 9:32am UTC](https://forum.mothur.org/t/where-is-the-missing-group-s/97/1 "2010-01-14T09:32:17Z")

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Here is my run:  
mothur \> read.otu(list=threesamples.fn.list,group=threesamples.group)  
_Your group file contains sequences and list file contains sequences. Please correct.  
For a list of names that are in your list file and not in your group file, please refer to threesamples.fn.missing.group._

However, the file threesamples.fn.missing.group. turns out an empty file.

I’ve checked the group file"threesamples.group" carefully and there are 468 lines, with one group-name of a sequence each line. There seems no reason for this error.

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**Author:** ![westcott](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.mothur.org/westcott/32/18_2.png) [@westcott](https://forum.mothur.org/u/westcott)\
**Post date:** [January 14, 2010, 12:28pm UTC](https://forum.mothur.org/t/where-is-the-missing-group-s/97/2 "2010-01-14T12:28:30Z")

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Would you mind sending your files to [mothur.bugs@gmail.com](mailto:mothur.bugs@gmail.com) so I can look into the problem for you?

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**Author:** ![legendgp](https://avatars.discourse-cdn.com/v4/letter/l/cab0a1/32.png) [@legendgp](https://forum.mothur.org/u/legendgp)\
**Post date:** [January 15, 2010, 1:51am UTC](https://forum.mothur.org/t/where-is-the-missing-group-s/97/3 "2010-01-15T01:51:39Z")

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Thank you, Westcott. I’ll send you the two files right away.