我目前有一个数据框叫做清算,我想运行30个随机样本,每个样本1000个观察值,指定哪个帐户来自哪个样本,然后将它与所有30个样本组合成一个新的数据框样品组合:R中的多个随机采样
这是我如何手动做到了在使用dplyr包进行随机抽样,但希望简化它可重复性:
Sample_1 <- liquidation %>%
sample_n(1000)
Sample_1$Obs <- 1
Sample_2 <- liquidation %>%
sample_n(1000)
Sample_2$Obs <- 2
Sample_3 <- liquidation %>%
sample_n(1000)
Sample_3$Obs <- 3
....
Sample_30 <- liquidation %>%
sample_n(1000)
Sample_30$Obs <- 30
然后我结合所有到一个组合的数据帧:
Combined <- rbind(Sample_1, Sample_2, Sample_3, Sample_4, Sample_5, Sample_6, Sample_7, Sample_8, Sample_9, Sample_10,
Sample_11, Sample_12, Sample_13, Sample_14, Sample_15, Sample_16, Sample_17, Sample_18, Sample_19,
Sample_20, Sample_21, Sample_22, Sample_23, Sample_24, Sample_25, Sample_26, Sample_27, Sample_28,
Sample_29, Sample_30)
str(Combined)
'data.frame': 30000 obs. of 31 variables: