Re: [galaxy-user] cuffdiff values different for same sample

2012-10-17 Thread Jennifer Jackson

Hello,

Thank you for sharing your history. The difference in FPKM values can be 
explained by the use of the -N option (Perform quartile normalization: 
Yes). Set this to No to avoid the variable per-run normalization.


This has also been discussed at seqanswers.com:
http://seqanswers.com/forums/showthread.php?t=4606

Hopefully this helps!

Jen
Galaxy team

On 10/12/12 9:43 AM, i b wrote:

Hello forum,
I have ran cuffdiff with two samples, treated vs untreated, and had
certain values as expressed in the output (isoform differential
expression).

When I ran it again, using a different treated sample, but SAME
UNTREATED SAMPLE, the values assigned to the untreated are different.

Why is this if values are calculated from a unique FPKM? This happend
for other jobs where I have ran the same untreated vs other treated
samples...

Thanks a lot,
ib
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--
Jennifer Jackson
http://galaxyproject.org
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Re: [galaxy-user] cuffdiff values different for same sample

2012-10-15 Thread Jennifer Jackson

Hello,

Would you be able to share a history containing these data? Use 
Options (gear icon) - Share or Publish, generate the share link, then 
copy and paste that into a reply email sent to me directly. Please note 
the dataset #'s for the Cuffdiff runs that you are comparing and make 
sure that all inputs are undeleted.


Best,

Jen
Galaxy team

On 10/12/12 9:43 AM, i b wrote:

Hello forum,
I have ran cuffdiff with two samples, treated vs untreated, and had
certain values as expressed in the output (isoform differential
expression).

When I ran it again, using a different treated sample, but SAME
UNTREATED SAMPLE, the values assigned to the untreated are different.

Why is this if values are calculated from a unique FPKM? This happend
for other jobs where I have ran the same untreated vs other treated
samples...

Thanks a lot,
ib
___
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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:

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please use the interface at:

   http://lists.bx.psu.edu/



--
Jennifer Jackson
http://galaxyproject.org
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[galaxy-user] cuffdiff values different for same sample

2012-10-12 Thread i b
Hello forum,
I have ran cuffdiff with two samples, treated vs untreated, and had
certain values as expressed in the output (isoform differential
expression).

When I ran it again, using a different treated sample, but SAME
UNTREATED SAMPLE, the values assigned to the untreated are different.

Why is this if values are calculated from a unique FPKM? This happend
for other jobs where I have ran the same untreated vs other treated
samples...

Thanks a lot,
ib
___
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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

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