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时尚研究
法律研究如何在 R 中创建一个星期内随机采样的例子？
要创建一个星期内的向量，我们可以使用命令 weekdays(Sys.Date()+0:6)，如果我们要创建一个星期内随机采样的例子，则可以使用 sample 函数和 weekdays 命令。例如，如果我们要创建一个 20 天的随机样本，则可以这样操作：sample(weekdays(Sys.Date()+0:6),20,replace=TRUE)。
示例
Example1<−sample(weekdays(Sys.Date()+0:6),20,replace=TRUE) Example1
输出
[1] "Friday" "Tuesday" "Saturday" "Monday" "Monday" "Sunday" [7] "Monday" "Sunday" "Tuesday" "Sunday" "Friday" "Friday" [13] "Wednesday" "Thursday" "Thursday" "Monday" "Sunday" "Tuesday" [19] "Saturday" "Thursday"
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示例
Example2<−sample(weekdays(Sys.Date()+0:6),30,replace=TRUE) Example2
输出
[1] "Monday" "Saturday" "Wednesday" "Saturday" "Saturday" "Sunday" [7] "Saturday" "Saturday" "Wednesday" "Monday" "Sunday" "Tuesday" [13] "Monday" "Sunday" "Tuesday" "Sunday" "Sunday" "Tuesday" [19] "Saturday" "Friday" " Wednesday" "Monday" "Wednesday" "Wednesday" [25] "Wednesday" "Monday" "Monday" "Monday" "Monday" "Thursday"
示例
Example3<−sample(weekdays(Sys.Date()+0:6),7,replace=TRUE) Example3
输出
[1] "Friday" "Thursday" "Thursday" "Saturday" "Sunday" "Sunday" "Friday"
示例
Example4<−sample(weekdays(Sys.Date()+0:6),31,replace=TRUE) Example4
输出
[1] "Tuesday" "Tuesday" "Wednesday" "Tuesday" "Thursday" "Sunday" [7] "Friday" "Thursday" "Sunday" "Thursday" "Sunday" "Monday" [13] "Friday" "Friday" "Tuesday" "Monday" "Saturday" "Friday" [19] "Tuesday" "Friday" "Saturday" "Wednesday" "Friday" "Saturday" [25] "Tuesday" "Friday" "Tuesday" "Sunday" "Sunday" "Wednesday" [31] "Sunday"
示例
Example5<−sample(weekdays(Sys.Date()+0:6),181,replace=TRUE) Example5
输出
[1] "Wednesday" "Monday" "Monday" "Saturday" "Sunday" "Sunday" [7] "Friday" "Wednesday" "Thursday" "Wednesday" "Saturday" "Sunday" [13] "Saturday" "Sunday" "Friday" "Monday" "Tuesday" "Tuesday" [19] "Saturday" "Friday" "Thursday" "Monday" "Thursday" "Monday" [25] "Monday" "Tuesday" "Friday" "Tuesday" "Sunday" "Wednesday" [31] "Wednesday" "Saturday" "Sunday" "Monday" "Thursday" "Friday" [37] "Sunday" "Thursday" "Monday" "Sunday" "Wednesday" "Thursday" [43] "Thursday" "Monday" "Wednesday" "Saturday" "Sunday" "Wednesday" [49] "Tuesday" "Sunday" "Wednesday" "Sunday" "Monday" "Sunday" [55] "Tuesday" "Sunday" "Saturday" "Tuesday" "Saturday" "Friday" [61] "Tuesday" "Monday" "Sunday" "Monday" "Monday" "Wednesday" [67] "Thursday" "Thursday" "Monday" "Friday" "Sunday" "Tuesday" [73] "Friday" "Friday" "Tuesday" "Friday" "Saturday" "Tuesday" [79] "Saturday" "Thursday" "Thursday" "Friday" "Monday" "Tuesday" [85] "Friday" "Tuesday" "Friday" "Friday" "Saturday" "Monday" [91] "Wednesday" "Sunday" "Saturday" "Monday" "Thursday" "Saturday" [97] "Thursday" "Wednesday" "Tuesday" "Sunday" "Monday" "Saturday" [103] "Monday" "Wednesday" "Tuesday" "Friday" "Tuesday" "Thursday" [109] "Thursday" "Monday" "Thursday" "Saturday" "Tuesday" "Monday" [115] "Friday" "Sunday" "Monday" "Saturday" "Tuesday" "Thursday" [121] "Saturday" "Tuesday" "Saturday" "Thursday" "Wednesday" "Saturday" [127] "Monday" "Monday" "Saturday" "Tuesday" "Tuesday" "Sunday" [133] "Wednesday" "Sunday" "Sunday" "Saturday" "Friday" "Friday" [139] "Friday" "Monday" "Sunday" "Saturday" "Monday" "Sunday" [145] "Friday" "Wednesday" "Tuesday" "Monday" "Wednesday" "Sunday" [151] "Thursday" "Monday" "Wednesday" "Sunday" "Thursday" "Wednesday" [157] "Friday" "Monday" "Tuesday" "Sunday" "Thursday" "Wednesday" [163] "Thursday" "Wednesday" "Friday" "Thursday" "Wednesday" "Sunday" [169] "Monday" "Saturday" "Saturday" "Wednesday" "Thursday" "Thursday" [175] "Tuesday" "Saturday" "Wednesday" "Friday" "Sunday" "Thursday" [181] "Monday"
示例
Example6<−sample(weekdays(Sys.Date()+0:6),365,replace=TRUE) Example6
输出
[1] "Tuesday" "Saturday" "Friday" "Tuesday" "Saturday" "Thursday" [7] "Tuesday" "Saturday" "Sunday" "Wednesday" "Sunday" "Monday" [13] "Sunday" "Friday" "Sunday" "Wednesday" "Sunday" "Saturday" [19] "Saturday" "Friday" "Sunday" "Friday" "Friday" "Monday" [25] "Friday" "Thursday" "Wednesday" "Wednesday" "Thursday" "Tuesday" [31] "Thursday" "Friday" "Thursday" "Wednesday" "Monday" "Wednesday" [37] "Wednesday" "Sunday" "Monday" "Thursday" "Sunday" "Monday" [43] "Friday" "Friday" "Friday" "Sunday" "Thursday" "Sunday" [49] "Wednesday" "Saturday" "Monday" "Wednesday" "Tuesday" "Tuesday" [55] "Tuesday" "Tuesday" "Wednesday" "Thursday" "Sunday" "Saturday" [61] "Tuesday" "Wednesday" "Wednesday" "Monday" "Monday" "Thursday" [67] "Wednesday" "Wednesday" "Thursday" "Tuesday" "Wednesday" "Sunday" [73] "Tuesday" "Saturday" "Tuesday" "Wednesday" "Wednesday" "Friday" [79] "Tuesday" "Thursday" "Thursday" "Saturday" "Monday" "Friday" [85] "Sunday" "Sunday" "Sunday" "Monday" "Friday" "Thursday" [91] "Sunday" "Wednesday" "Monday" "Monday" "Monday" "Wednesday" [97] "Wednesday" "Thursday" "Friday" "Sunday" "Saturday" "Sunday" [103] "Saturday" "Thursday" "Thursday" "Wednesday" "Thursday" "Thursday" [109] "Monday" "Tuesday" "Wednesday" "Thursday" "Monday" "Thursday" [115] "Tuesday" "Monday" "Monday" "Thursday" "Saturday" "Tuesday" [121] "Friday" "Monday" "Thursday" "Tuesday" "Saturday" "Monday" [127] "Saturday" "Sunday" "Tuesday" "Friday" "Thursday" "Saturday" [133] "Saturday" "Saturday" "Wednesday" "Thursday" "Friday" "Thursday" [139] "Sunday" "Thursday" "Saturday" "Friday" "Wednesday" "Friday" [145] "Saturday" "Wednesday" "Tuesday" "Sunday" "Wednesday" "Thursday" [151] "Sunday" "Sunday" "Sunday" "Friday" "Friday" "Monday" [157] "Sunday" "Thursday" "Saturday" "Saturday" "Monday" "Tuesday" [163] "Sunday" "Thursday" "Saturday" "Thursday" "Friday" "Tuesday" [169] "Thursday" "Sunday" "Tuesday" "Monday" "Tuesday" "Sunday" [175] "Friday" "Wednesday" "Wednesday" "Saturday" "Monday" "Tuesday" [181] "Wednesday" "Friday" "Saturday" "Sunday" "Sunday" "Monday" [187] "Saturday" "Thursday" "Wednesday" "Wednesday" "Tuesday" "Friday" [193] "Wednesday" "Monday" "Wednesday" "Monday" "Saturday" "Monday" [199] "Tuesday" "Tuesday" "Friday" "Monday" "Tuesday" "Monday" [205] "Monday" "Wednesday" "Saturday" "Sunday" "Friday" "Wednesday" [211] "Friday" "Wednesday" "Friday" "Thursday" "Tuesday" "Monday" [217] "Sunday" "Saturday" "Sunday" "Wednesday" "Wednesday" "Thursday" [223] "Thursday" "Sunday" "Wednesday" "Wednesday" "Tuesday" "Monday" [229] "Friday" "Thursday" "Wednesday" "Saturday" "Thursday" "Friday" [235] "Tuesday" "Saturday" "Saturday" "Tuesday" "Sunday" "Friday" [241] "Thursday" "Thursday" "Tuesday" "Friday" "Sunday" "Tuesday" [247] "Thursday" "Wednesday" "Friday" "Friday" "Sunday" "Monday" [253] "Wednesday" "Thursday" "Monday" "Friday" "Tuesday" "Sunday" [259] "Tuesday" "Monday" "Sunday" "Friday" "Monday" "Tuesday" [265] "Thursday" "Sunday" "Sunday" "Sunday" "Saturday" "Friday" [271] "Tuesday" "Friday" "Thursday" "Sunday" "Saturday" "Sunday" [277] "Friday" "Friday" "Thursday" "Sunday" "Sunday" "Wednesday" [283] "Thursday" "Sunday" "Tuesday" "Thursday" "Friday" "Tuesday" [289] "Monday" "Monday" "Thursday" "Monday" "Tuesday" "Saturday" [295] "Friday" "Monday" "Wednesday" "Tuesday" "Tuesday" "Sunday" [301] "Thursday" "Wednesday" "Wednesday" "Saturday" "Saturday" "Saturday" [307] "Tuesday" "Saturday" "Monday" "Thursday" "Monday" "Thursday" [313] "Friday" "Saturday" "Tuesday" "Saturday" "Thursday" "Wednesday" [319] "Thursday" "Wednesday" "Friday" "Friday" "Saturday" "Monday" [325] "Monday" "Sunday" "Monday" "Wednesday" "Sunday" "Monday" [331] "Friday" "Wednesday" "Sunday" "Saturday" "Sunday" "Wednesday" [337] "Saturday" "Monday" "Tuesday" "Saturday" "Monday" "Sunday" [343] "Monday" "Friday" "Friday" "Friday" "Friday" "Thursday" [349] "Tuesday" "Sunday" "Sunday" "Monday" "Wednesday" "Tuesday" [355] "Wednesday" "Wednesday" "Sunday" "Tuesday" "Tuesday" "Monday" [361] "Thursday" "Thursday" "Sunday" "Tuesday" "Monday"
更新时间： 2021 年 2 月 5 日
324 次浏览
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