At Wed, 30 Oct 2013 21:51:05 -0400,
Jeremy Goecks wrote:
> It turns out that your artificial test is a bit too artificial. In order to 
> display a coverage plot, Trackster converts reads in a BAM to BigWig using a 
> two step process:
> (1) BAM to bedgraph;
> (2) bedgraph to bigwig
> Your super simple example generates an empty file in step 1 because your 
> single read does not map to Araly1, and the tool used in step 2 
> (bedGraphToBigWig) fails with the error that you're seeing. This is a 
> corner-case bug, and I've create a card for this so you can track its 
> resolution:

Hi Jeremy, Bjoern,

Thanks for your help.  Yes, my data file wasn't very good.  I tried again with 
a more realistic sample, and it worked fine.

Sorry for the noise.

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