我目前有一個數據框叫做清算,我想運行30個隨機樣本,每個樣本1000個觀察值,指定哪個帳戶來自哪個樣本,然後將它與所有30個樣本組合成一個新的數據框樣品組合:R中的多個隨機採樣
這是我如何手動做到了在使用dplyr包進行隨機抽樣,但希望簡化它可重複性:
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
然後我結合所有到一個組合的數據幀:
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: