xpclr_smooth_line_plot.r -i all.chr.xpclr -F $FAI -f 19226500  -n all.chr.xpclr.smoothline --> Q&A for bioinformatics, please visit the website: https://www.omicsclass.com/ --> R beginners ? I suggest your  learning  R language: https://study.omicsclass.com/index Loading required package: ggplot2 chr_name =  1 chr_name =  8 chr_name =  15 chr_name =  2 chr_name =  9 chr_name =  16 chr_name =  3 chr_name =  10 chr_name =  17 chr_name =  4 chr_name =  11 chr_name =  18 chr_name =  5 chr_name =  12 chr_name =  19 chr_name =  6 chr_name =  13 chr_name =  20 chr_name =  7 chr_name =  14 chr_name =  21 chr_name =  0         1%         5%        80%        90%        95%        99% -0.2429295 -0.2373629 -0.1200045 -0.1187288  0.4832382  4.2705026 Warning message: Removed 1406463 row(s) containing missing values (geom_path). null device           1 Warning message: Removed 1406463 row(s) containing missing values (geom_path). null device           1