Calculate circos format data of GC content and GC skew from genome data.
Usage: GCcalc.py -f input.fa [-w 1000] [-s 1000]
Options: -h, --help show this help message and exit
-f FASTA, --file=FASTA
Input Fasta format file
-w WINDOWSIZE, --window=WINDOWSIZE
default:1000 WindowSize to calculate
-s STEPSIZE, --step=STEPSIZE
default:1000 StepSize for slide widows