Yes, I tried vcfstats but its showing error. So now I am trying bcftools stats and then plot-vcfstats to analyse the output produce by bcftools stats. But its showing error the error:

Parsing bcftools stats output: test.vchk
Plotting graphs: python plot.py
Traceback (most recent call last):
  File "plot.py", line 53, in <module>
    import matplotlib as mpl
ModuleNotFoundError: No module named 'matplotlib'
The command exited with non-zero status 256:
        python plot.py

 at /home/kxj190026/anaconda3/envs/chip-seq/bin/plot-vcfstats line 99.
        main::error("The command exited with non-zero status 256:\x{a}\x{9}python plot.py\x{a}\x{a}") called at /home/anaconda3/envs/chip-seq/bin/plot-vcfstats line 287
        main::plot(HASH(0x55a9a5d69e80)) called at /home/anaconda3/envs/chip-seq/bin/plot-vcfstats line 69