In the past, others have had success using Cummerbund with Galaxy, and there's
even a Cummerbund wrapper in the tool shed:
http://toolshed.g2.bx.psu.edu/view/jjohnson/cummerbund
That said, it appears that replicate information is largely contained in the
read group tracking files, which are not currently included in Galaxy's
Cuffdiff outputs. I don't know if these files are required by Cummerbund to do
replicate analysis. This would be a good question for the Cummerbund
developers, as well as what the p and q values mean when doing replicate
analysis.
If you find that Galaxy's lacking something for Cummerbund to function
correctly, that would be very useful information to share with the list.
Best,
J.
On Jul 26, 2013, at 8:50 PM, Mike Shamblott wrote:
I'm trying to run Cuffdiff on a set of 10 human samples with biological
replication then download the results for further analyses in
Cummerbund(v2.1.1). It seems like a standard workflow but I cannot get
cummerbund to acknowledge replicates. I download and rename the 11 cuffdiff
output files to the names expected by cummerbund. Cummerbund builds a
CuffSet with no warnings and most analyses work as expected. The problem
comes any time I try to see the results of replication. For example, in
cummerbund, replicates() returns an empty set and any type of plot returns
an error when replicates=T is included as an argument.
There is no evidence of replication data in any of the 11 cuffdiff output
files. The data is presented with the group name only. From this, I
conclude that the problem is with cuffdiff, since there is no replicate data
for cummerbund to build into its db. I see that there are several read group
files that are produced by cuffdiff but cannot be downloaded in Galaxy. Is
this the problem, and if so, how can Galaxy be used to generate data with
(essential) replication? Are the p and q significance values reported in
the output files a result of replicate analysis?
I have tried to ask this question in several different forums without
success. The responses I've gotten suggest its a Galaxy issue rather than
either cuffdiff or cummerbund. I'm hoping someone here can help answer my
questions.
Hopeful,
Mike
___
The Galaxy User list should be used for the discussion of
Galaxy analysis and other features on the public server
at usegalaxy.org. Please keep all replies on the list by
using reply all in your mail client. For discussion of
local Galaxy instances and the Galaxy source code, please
use the Galaxy Development list:
http://lists.bx.psu.edu/listinfo/galaxy-dev
To manage your subscriptions to this and other Galaxy lists,
please use the interface at:
http://lists.bx.psu.edu/
To search Galaxy mailing lists use the unified search at:
http://galaxyproject.org/search/mailinglists/
___
The Galaxy User list should be used for the discussion of
Galaxy analysis and other features on the public server
at usegalaxy.org. Please keep all replies on the list by
using reply all in your mail client. For discussion of
local Galaxy instances and the Galaxy source code, please
use the Galaxy Development list:
http://lists.bx.psu.edu/listinfo/galaxy-dev
To manage your subscriptions to this and other Galaxy lists,
please use the interface at:
http://lists.bx.psu.edu/
To search Galaxy mailing lists use the unified search at:
http://galaxyproject.org/search/mailinglists/