使用方法：

Rscript manhattan1.r
Usage: manhattan1.r [-[-help|h]] [-[-infile|i] <character>] [-[-outfile|o] [<character>]] [-[-x.lab|X] [<character>]] [-[-y.lab|Y] [<character>]] [-[-title|T] [<character>]] [-[-ref|r] [<character>]] [-[-width|W] [<integer>]] [-[-hight|H] [<integer>]] [-[-point.size|p] [<double>]] [-[-lab.size|l] [<double>]] [-[-title.size|t] [<doulbe>]] [-[-axis.size|a] [<doulbe>]] [-[-nbg|n] [<logical>]] [-[-blank|b] [<double>]] [-[-cutoff|c] [<double>]]
Usage example:

                                        Usage example:
                                        Rscript manhattanplot.test.r --infile bayesian.value.xls --outfile manhattanplot.png

                                        Options:
                                        --help        -h     NULL         get this help
                                        --infile     -i     character     the input file [forced]
                                        --outfile     -o     character     the filename for output graph [optional, default:manhattan_plot.png]
                                        --height     -H     integer     the height of graph [optional, default: 600]
                                        --width     -W     integer     the width of graph [optional, default: according  to chromosome length]
                                        --ref     -r     character     sort ref as length [optional, default: ]
                                        --x.lab     -X     character     the lab for x [optional, default: ]
                                        --y.lab     -Y     character     the lab for y [optional, default: ]
                                        --title.lab     -T     double     the lab for title [optional, default:]
                                        --point.size     -l     integer     the point size [optional, default: 1]
                                        --title.size     -l     integer     the point size [optional, default: 8]
                                        --lab.size     -l     double     the font size of lab [optional, default:8]
                                        --axis.size     -s     double     the font size of text for axis [optional, default:8]
                                        --nbg    -r     T     logical    Do not drawing background and grid [optional, default: TRUE]
                                        --blank  -b    double The length between the chromosome [optional,default:0.01]

输入文件格式：

 chr   pos      value
  10  4252 0.4277866
  10 45338 0.3196476
  10 45378 0.3306062
  10 45407 0.3332495
  10 45425 0.3342368
  10 45465 0.3355609

输出结果图：