1. 利用 if 条件判断，stop 语句报错
比如 对一个应该传入数值型，数值为 0 或 1 的参数：文章来源：https://www.toymoban.com/news/detail-817095.html
if(add.strat<0 | add.strat>1){
stop("add.strat represents the fraction of pseudoabsences that are
sampled environmentally stratified and should be between 0 and 1!")
}比如 对一个应该传入字符型，字符串为 某个向量元素之一 的参数，类似于选项框：文章来源地址https://www.toymoban.com/news/detail-817095.html
possibtype=c("geographic","random","target.group","geo.strat","density",
"env.strat","env.semi.strat")
if(length(type)!=1 | !(type%in%possibtype)){
stop("Invalid specification of pseudoabsence sampling type!")
}2. 利用 match.arg 语句判断传参是否在接收范围内
match.arg(value, choices = c("spatialvalid", "flagged", "clean"))
match.arg(centroids_detail, choices = c("both", "country", "provinces"))
match.arg(outliers_method, choices = c("distance", "quantile", "mad"))到了这里，关于R语言【技巧】——判断自定义函数的传参内容是否符合要求的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！
