Combining VG graphs

Question

[AshleeThomson]

Hi everyone,

I have a query about combining graphs made using VG.

I have 10 samples. For each sample I have built graphs using VG (.pg), one for each chromosome, and embedded their variants. Firstly, I want to combine each chromosome graph for each sample so that I only have 1 graph per sample. Then, I want to combine the 10 graphs to make 1 big graph that contains all the variants from each of the 10 samples.

I was just wondering the best way to go about this. I know vg has a combine` function, but I wasn't sure if that is what is needed, or can I 'cat' the chromosome graphs together first and then use 'vg combine' for the final construction.

Thanks in advance.