Hi all, I'm trying to run soapdenovo2 to assemble genomes. Although the results are acceptable, I am confused about the process.

How to understand the cvg in the *.cotig file ? I don't know why the number is 0.0 ... like this:

57 length 56 cvg_0.0_tip_0 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAT 59 length 56 cvg_0.0_tip_0 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAG 61 length 56 cvg_0.0_tip_0 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

and in the Scaff step , why the number of masked contigs is larger then the sum(9136380) ? This is the log file： There are 18271977 edge(s) in edge file. Mask contigs with coverage lower than 1.4 or higher than 28.0, and strict length 0. Average contig coverage is 14, 3620362 contig(s) masked. Mask contigs shorter than 57, 9413114 contig(s) masked. 24341908 arc(s) loaded, average weight is 10. 9136380 contig(s) loaded.