R带参数运行

rm(list=ls())
suppressPackageStartupMessages({
  library(getopt)
})

# getopt(),是getopt包的函数，需要先按照getopt包
# 
# getopt(spec = NULL, opt = commandArgs(TRUE),command = get_Rscript_filename(), usage = FALSE,debug = FALSE)
# 
# spec：一个4或5列的矩阵，里面包括了参数信息，前四列是必须的，第五列可选。

start.time <- Sys.time()
print(start.time)
spec <- matrix(
  c("dataset",  "d", 1, "character","dataset name",
    "filepath", "f",1,"character","file folder of data",
    'savedir',"s",1,"character","where to save result"
  ),byrow=TRUE, ncol=5)
opt <- getopt(spec=spec,debug=FALSE)

结果如下

但是这个地方有个错误需要注意

rm(list=ls())
suppressPackageStartupMessages({
  library(getopt)
})

# getopt(),是getopt包的函数，需要先按照getopt包
# 
# getopt(spec = NULL, opt = commandArgs(TRUE),command = get_Rscript_filename(), usage = FALSE,debug = FALSE)
# 
# spec：一个4或5列的矩阵，里面包括了参数信息，前四列是必须的，第五列可选。

start.time <- Sys.time()
print(start.time)
spec <- matrix(
  c("dataset",  "d", 1, "character","dataset name",
    "filepath", "f",1,"character","file folder of data",
    'savedir',"s",1,"character","where to save result",
  ),byrow=TRUE, ncol=5)
opt <- getopt(spec=spec,debug=FALSE)

就是c()最后不能带, 需要删掉，否则报错

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