如何在R中创建一个随机的月份样本？
可以使用样本函数创建随机样本，并可以借助month.name函数生成一年中的月份。因此，如果我们要创建一个随机的月份样本，则可以使用month.name并将样本函数用作sample(month.name)，并且如果样本的大小大于12，则应使用replace=TRUE参数。
例子
x1<−sample(month.name) x1
输出结果
[1] "October" "April" "March" "May" "June" "December" [7] "July" "September" "January" "February" "November" "August"
示例
x2<−sample(month.name,20,replace=TRUE) x2
输出结果
[1] "August" "May" "June" "May" "October" "October" [7] "February" "October" "March" "May" "October" "November" [13] "December" "November" "August" "May" "July" "January" [19] "July" "June"
示例
x3<−sample(month.name,30,replace=TRUE) x3
输出结果
[1] "April" "April" "November" "January" "September" "October" [7] "June" "July" "March" "May" "December" "October" [13] "December" "September" "August" "June" "November" "March" [19] "November" "January" "May" "August" "February" "September" [25] "July" "July" "February" "July" "November" "September"
示例
x4<−sample(month.name,50,replace=TRUE) x4
输出结果
[1]“6月”“9月”“7月”“6月”“10月”“11月”[7]“2月”“8月”“3月”“4月”“7月”“8月”[13]“10月”“4月“”6月“”4月“”3月“”4月“[19]”11月“”9月“”1月“”8月“”6月“”3月“[25]”9月“”10月“”7月“”10月“”三月“”八月“[31]”十二月“”二月“”十月“”七月“”四月“”十二月“[37]”十一月“”三月“”五月“”九月“”五月“”十二月“[43]“游行”“9月”“1月”“8月”“10月”“4月”[49]“6月”“9月”
示例
x5<−sample(month.name,60,replace=TRUE) x5
输出结果
[1] "December" "June" "May" "February" "February" "January" [7] "January" "November" "March" "March" "July" "October" [13] "February" "July" "November" "February" "October" "March" [19] "September" "June" "April" "April" "November" "February" [25] "May" "February" "March" "April" "September" "October" [31] "November" "November" "April" "July" "June" "September" [37] "December" "May" "August" "April" "October" "August" [43] "November" "September" "February" "March" "July" "December" [49] "March" "September" "December" "May" "November" "January" [55] "March" "November" "May" "October" "February" "March"
示例
x6<−sample(month.name,61,replace=TRUE) x6
输出结果
[1] "February" "June" "March" "March" "August" "November" [7] "November" "March" "December" "September" "November" "January" [13] "June" "February" "February" "July" "July" "June" [19] "July" "March" "September" "July" "November" "October" [25] "February" "October" "February" "January" "April" "November" [31] "September" "August" "October" "July" "May" "November" [37] "March" "April" "July" "February" "September" "July" [43] "March" "January" "November" "August" "January" "September" [49] "April" "September" "December" "March" "July" "January" [55] "February" "March" "August" "December" "October" "June" [61] "June"
示例
x7<−sample(month.name,90,replace=TRUE) x7
输出结果
[1] "January" "June" "February" "November" "April" "February" [7] "December" "November" "July" "July" "October" "May" [13] "November" "May" "September" "June" "November" "December" [19] "February" "July" "March" "June" "March" "March" [25] "December" "June" "May" "November" "October" "May" [31] "May" "November" "August" "November" "September" "May" [37] "May" "April" "February" "September" "July" "March" [43] "September" "March" "January" "September" "December" "October" [49] "December" "April" "February" "April" "January" "December" [55] "September" "February" "September" "October" "December" "April" [61] "June" "March" "October" "September" "October" "January" [67] "July" "September" "March" "February" "May" "August" [73] "April" "August" "January" "December" "September" "October" [79] "March" "January" "May" "August" "February" "July" [85] "February" "February" "December" "July" "March" "December"
示例
x8<−sample(month.name,92,replace=TRUE) x8
输出结果
[1] "February" "December" "October" "July" "June" "November" [7] "July" "October" "December" "March" "April" "July" [13] "April" "February" "January" "July" "June" "February" [19] "January" "October" "February" "November" "September" "October" [25] "March" "September" "November" "September" "June" "November" [31] "July" "April" "February" "February" "March" "November" [37] "September" "December" "April" "April" "March" "February" [43] "July" "February" "November" "August" "July" "October" [49] "April" "February" "June" "July" "March" "August" [55] "March" "December" "May" "November" "November" "February" [61] "November" "October" "September" "July" "July" "May" [67] "January" "December" "April" "January" "November" "May" [73] "October" "September" "December" "June" "January" "December" [79] "March" "February" "December" "December" "February" "December" [85] "October" "July" "June" "January" "October" "June" [91] "August" "October"