0：Using all function, from original vcf data to sfs barplot
1: Only speculate the ancestral allel and output new vcf file using speculated allel as reference
2: Only count the frequency of derived allel in each snp of each population
3: Only draw bar polt of sfs using data generated from the results of calutation of sfs

Model 0: python superSFS 0 ogdir threshold vcfdir annodir modir coutdir plotdir group
Model 1: python superSFS 1 ogdir threshold vcfdir outdir
Model 2: python superSFS 2 annodir modir coutdir
Model 3: python superSFS 3 coutdir plotdir group

ogdir: direction of outgroup names file
threshold: a number that if the sum of variant allel in outpgroup greater than it,the variant allel will be counted as ancestral allel
vcfdir: direction of vcf data
vannodir: direction of annotation file with sample names in first column and group name in second colum. This file should has header in first row
vmodir: assign the output direction of generated vcf file using speculated allel as reference
countdir: assign the output direction of calculation of derived allels for each snp in each group
plotdir: assign the output direction of bar plot of sfs
group: the group that you want to analysis