[Genome] custom track wig file with + and - numbers for the same position

[Hiram Clawson]

Good Afternoon Irina:

The wiggle track will not allow multiple values in the same location, as
you have discovered.

If you want two values in the same location, create two data sets and
load them into two separate tracks of data.

--Hiram

Khrebtukova, Irina wrote:
> Hi,
>  
> I'm trying to upload a custom track wig file with chr start and some
> positive or negative number and two alt colors. So far it was working
> perfectly well for me until I start using data where the same chr start
> could have both positive and negative numbers. You could easily imagine
> the situation when some short fragments map to the the same start on
> both + and - strand.
>  
> However, seems like I CAN NOT upload any track that has the same chr
> position but different values, for example:
>  
> variableStep chrom=chr1 span=32
> 555560 -113
> 555560 5
>  
> your browser immediately throw  an error like:
> track load error:
> chrom positions not in numerical order at line 24. previous: 555560 >
> 555560 <-current
> 
> could you please advise any solution around this?
> thanks!
>  
> Irina Khrebtukova, PhD
> Sr. Staff Bioinformatics Scientist
> Illumina Inc.
> 25861 Industrial Blvd.,
> Hayward, CA 94545
> ph: 510-723-9219
> ikhrebtukova at illumina.com