R getdata()

1 개요

R getdata()

• "Get Data"

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summary(warpbreaks)
##     breaks      wool   tension
## Min.   :10.00   A:27   L:18   
## 1st Qu.:18.25   B:27   M:18   
## Median :26.00          H:18   
## Mean   :28.15                 
## 3rd Qu.:34.00                 
## Max.   :70.00                 

table(warpbreaks$wool,warpbreaks$tension)
##  
##   L M H
## A 9 9 9
## B 9 9 9

library(sampling)
(s <- strata(warpbreaks,c("wool","tension"),size=c(2,2,2,2,2,2),method="srswor"))
##    wool tension ID_unit      Prob Stratum
## 4     A       L       4 0.2222222       1
## 9     A       L       9 0.2222222       1
## 13    A       M      13 0.2222222       2
## 14    A       M      14 0.2222222       2
## 20    A       H      20 0.2222222       3
## 21    A       H      21 0.2222222       3
## 30    B       L      30 0.2222222       4
## 31    B       L      31 0.2222222       4
## 39    B       M      39 0.2222222       5
## 43    B       M      43 0.2222222       5
## 46    B       H      46 0.2222222       6
## 53    B       H      53 0.2222222       6

getdata(warpbreaks, s)
##    breaks wool tension ID_unit      Prob Stratum
## 4      25    A       L       4 0.2222222       1
## 9      67    A       L       9 0.2222222       1
## 13     17    A       M      13 0.2222222       2
## 14     12    A       M      14 0.2222222       2
## 20     21    A       H      20 0.2222222       3
## 21     24    A       H      21 0.2222222       3
## 30     29    B       L      30 0.2222222       4
## 31     19    B       L      31 0.2222222       4
## 39     19    B       M      39 0.2222222       5
## 43     21    B       M      43 0.2222222       5
## 46     20    B       H      46 0.2222222       6
## 53     16    B       H      53 0.2222222       6

2 같이 보기

• R srswor()
• R UPsystematic()
• R strata()
• R cluster()
• R mstage()

3 참고

• https://www.rdocumentation.org/packages/sampling/versions/2.8/topics/getdata