CASchools: Bộ dữ liệu chứa dữ liệu về hiệu suất kiểm tra, đặc điểm của trường học và nền tảng nhân khẩu học của học sinh cho các trường học cấp quận ở California.
district : mã quận
school: tên trường
country: tên các thành phố/quận
grades: biểu thị nhịp độ của huyện
students: tổng số ghi danh
teachers: só giáo viên
calworks: Phần trăm đủ điều kiện hưởng hỗ trợ thu nhập của CalWorks
lunch: Phần trăm đủ điều kiện cho bữa ăn trưa giảm giá
computer: số lượng máy tính
expenditure:chi tiêu của mỗi sinh viên
income: thu nhập bình quân của huyện (1000 USD)
english: phần trăm người học tiếng anh
read: điểm đọc trung bình
math: điểm toán trung bình
library(AER)## Warning: package 'AER' was built under R version 4.2.3## Loading required package: car## Warning: package 'car' was built under R version 4.2.3## Loading required package: carData## Warning: package 'carData' was built under R version 4.2.3## Loading required package: lmtest## Warning: package 'lmtest' was built under R version 4.2.3## Loading required package: zoo## Warning: package 'zoo' was built under R version 4.2.3##
## Attaching package: 'zoo'## The following objects are masked from 'package:base':
##
## as.Date, as.Date.numeric## Loading required package: sandwich## Warning: package 'sandwich' was built under R version 4.2.3## Loading required package: survivaldata(CASchools)
d<- CASchools
str(d)## 'data.frame': 420 obs. of 14 variables:
## $ district : chr "75119" "61499" "61549" "61457" ...
## $ school : chr "Sunol Glen Unified" "Manzanita Elementary" "Thermalito Union Elementary" "Golden Feather Union Elementary" ...
## $ county : Factor w/ 45 levels "Alameda","Butte",..: 1 2 2 2 2 6 29 11 6 25 ...
## $ grades : Factor w/ 2 levels "KK-06","KK-08": 2 2 2 2 2 2 2 2 2 1 ...
## $ students : num 195 240 1550 243 1335 ...
## $ teachers : num 10.9 11.1 82.9 14 71.5 ...
## $ calworks : num 0.51 15.42 55.03 36.48 33.11 ...
## $ lunch : num 2.04 47.92 76.32 77.05 78.43 ...
## $ computer : num 67 101 169 85 171 25 28 66 35 0 ...
## $ expenditure: num 6385 5099 5502 7102 5236 ...
## $ income : num 22.69 9.82 8.98 8.98 9.08 ...
## $ english : num 0 4.58 30 0 13.86 ...
## $ read : num 692 660 636 652 642 ...
## $ math : num 690 662 651 644 640 ...names(d)<- c('D','S','C','G','St','T','Ca','L','Co','E','I','El','R','M')
d[125,3]## [1] Tulare
## 45 Levels: Alameda Butte Calaveras Contra Costa El Dorado Fresno ... Yubad[22,11]## [1] 9.63Stu<- d$St
# vùng có số học sinh lớn hơn 800 em
Stu800<- Stu[Stu>800]
# vùng có số học sinh lớn hơn 800 và nhỏ hơn 1500
Stu80015<-Stu[Stu>800&Stu<1500]
# xem dữ liệu thứ 5 của biến Stu800
Stu800[5]## [1] 987cut(Stu,4)## [1] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [4] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [7] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [10] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [13] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [16] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [19] (6.85e+03,1.36e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [22] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [25] (53.9,6.85e+03] (53.9,6.85e+03] (6.85e+03,1.36e+04]
## [28] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [31] (53.9,6.85e+03] (53.9,6.85e+03] (6.85e+03,1.36e+04]
## [34] (53.9,6.85e+03] (2.04e+04,2.72e+04] (53.9,6.85e+03]
## [37] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [40] (53.9,6.85e+03] (1.36e+04,2.04e+04] (53.9,6.85e+03]
## [43] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [46] (53.9,6.85e+03] (1.36e+04,2.04e+04] (53.9,6.85e+03]
## [49] (2.04e+04,2.72e+04] (6.85e+03,1.36e+04] (6.85e+03,1.36e+04]
## [52] (53.9,6.85e+03] (6.85e+03,1.36e+04] (6.85e+03,1.36e+04]
## [55] (6.85e+03,1.36e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [58] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [61] (53.9,6.85e+03] (53.9,6.85e+03] (2.04e+04,2.72e+04]
## [64] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [67] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [70] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [73] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [76] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [79] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [82] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [85] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [88] (6.85e+03,1.36e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [91] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [94] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [97] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [100] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [103] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [106] (53.9,6.85e+03] (1.36e+04,2.04e+04] (53.9,6.85e+03]
## [109] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [112] (1.36e+04,2.04e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [115] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [118] (6.85e+03,1.36e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [121] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [124] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [127] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [130] (6.85e+03,1.36e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [133] (6.85e+03,1.36e+04] (53.9,6.85e+03] (6.85e+03,1.36e+04]
## [136] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [139] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [142] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [145] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [148] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [151] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [154] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [157] (6.85e+03,1.36e+04] (53.9,6.85e+03] (6.85e+03,1.36e+04]
## [160] (2.04e+04,2.72e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [163] (53.9,6.85e+03] (1.36e+04,2.04e+04] (6.85e+03,1.36e+04]
## [166] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [169] (6.85e+03,1.36e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [172] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [175] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [178] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [181] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [184] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [187] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [190] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [193] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [196] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [199] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [202] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [205] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [208] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [211] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [214] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [217] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [220] (6.85e+03,1.36e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [223] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [226] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [229] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [232] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [235] (1.36e+04,2.04e+04] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [238] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [241] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [244] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [247] (53.9,6.85e+03] (53.9,6.85e+03] (6.85e+03,1.36e+04]
## [250] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [253] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [256] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [259] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [262] (53.9,6.85e+03] (53.9,6.85e+03] (6.85e+03,1.36e+04]
## [265] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [268] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [271] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [274] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [277] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [280] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [283] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [286] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [289] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [292] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [295] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [298] (6.85e+03,1.36e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [301] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [304] (1.36e+04,2.04e+04] (53.9,6.85e+03] (53.9,6.85e+03]
## [307] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [310] (53.9,6.85e+03] (53.9,6.85e+03] (6.85e+03,1.36e+04]
## [313] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [316] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [319] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [322] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [325] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [328] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [331] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [334] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [337] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [340] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [343] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [346] (53.9,6.85e+03] (6.85e+03,1.36e+04] (53.9,6.85e+03]
## [349] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [352] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [355] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [358] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [361] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [364] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [367] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [370] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [373] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [376] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [379] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [382] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [385] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [388] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [391] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [394] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [397] (53.9,6.85e+03] (53.9,6.85e+03] (1.36e+04,2.04e+04]
## [400] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [403] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [406] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [409] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [412] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [415] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## [418] (53.9,6.85e+03] (53.9,6.85e+03] (53.9,6.85e+03]
## 4 Levels: (53.9,6.85e+03] (6.85e+03,1.36e+04] ... (2.04e+04,2.72e+04]table(cut(Stu,4))##
## (53.9,6.85e+03] (6.85e+03,1.36e+04] (1.36e+04,2.04e+04] (2.04e+04,2.72e+04]
## 375 33 8 4Ma<- d$M
#chia tổ và tạo bảng cho biến điểm trung bình toán
cut(Ma,4)## [1] (683,710] (657,683] (631,657] (631,657] (631,657] (605,631] (605,631]
## [8] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631]
## [15] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631]
## [22] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631]
## [29] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631]
## [36] (605,631] (605,631] (605,631] (605,631] (605,631] (605,631] (631,657]
## [43] (605,631] (631,657] (605,631] (605,631] (605,631] (605,631] (605,631]
## [50] (631,657] (631,657] (605,631] (605,631] (631,657] (605,631] (605,631]
## [57] (631,657] (605,631] (605,631] (631,657] (631,657] (631,657] (631,657]
## [64] (631,657] (631,657] (605,631] (631,657] (605,631] (631,657] (631,657]
## [71] (631,657] (605,631] (631,657] (631,657] (631,657] (631,657] (631,657]
## [78] (605,631] (605,631] (631,657] (631,657] (631,657] (631,657] (631,657]
## [85] (631,657] (605,631] (631,657] (631,657] (631,657] (631,657] (631,657]
## [92] (631,657] (605,631] (605,631] (631,657] (631,657] (631,657] (631,657]
## [99] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [106] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [113] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [120] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [127] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [134] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [141] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [148] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [155] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [162] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [169] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [176] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [183] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [190] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [197] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [204] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [211] (631,657] (631,657] (631,657] (631,657] (631,657] (657,683] (631,657]
## [218] (631,657] (631,657] (631,657] (657,683] (631,657] (657,683] (631,657]
## [225] (657,683] (631,657] (631,657] (657,683] (631,657] (631,657] (657,683]
## [232] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657] (631,657]
## [239] (631,657] (631,657] (631,657] (631,657] (657,683] (631,657] (657,683]
## [246] (631,657] (657,683] (631,657] (657,683] (631,657] (657,683] (631,657]
## [253] (657,683] (657,683] (657,683] (657,683] (631,657] (657,683] (631,657]
## [260] (631,657] (657,683] (657,683] (657,683] (657,683] (631,657] (657,683]
## [267] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [274] (657,683] (657,683] (657,683] (631,657] (657,683] (657,683] (657,683]
## [281] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [288] (657,683] (657,683] (631,657] (657,683] (631,657] (657,683] (657,683]
## [295] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [302] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [309] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [316] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [323] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [330] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [337] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [344] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [351] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [358] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [365] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [372] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [379] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683] (657,683]
## [386] (657,683] (657,683] (657,683] (683,710] (657,683] (657,683] (683,710]
## [393] (657,683] (683,710] (657,683] (683,710] (683,710] (657,683] (683,710]
## [400] (657,683] (683,710] (683,710] (683,710] (683,710] (683,710] (683,710]
## [407] (683,710] (683,710] (683,710] (683,710] (683,710] (683,710] (683,710]
## [414] (683,710] (683,710] (683,710] (683,710] (631,657] (657,683] (631,657]
## Levels: (605,631] (631,657] (657,683] (683,710]table(cut(Ma,4))##
## (605,631] (631,657] (657,683] (683,710]
## 56 192 148 24# bảng tần số của hai biến " số học sinh" và " điểm trung bình toán"
table(cut(Stu,4),cut(Ma,4))##
## (605,631] (631,657] (657,683] (683,710]
## (53.9,6.85e+03] 47 167 138 23
## (6.85e+03,1.36e+04] 5 19 9 0
## (1.36e+04,2.04e+04] 2 4 1 1
## (2.04e+04,2.72e+04] 2 2 0 0ElT3060<- d[d$El>30|d$T<60,]
str(ElT3060)## 'data.frame': 288 obs. of 14 variables:
## $ D : chr "75119" "61499" "61549" "61457" ...
## $ S : chr "Sunol Glen Unified" "Manzanita Elementary" "Thermalito Union Elementary" "Golden Feather Union Elementary" ...
## $ C : Factor w/ 45 levels "Alameda","Butte",..: 1 2 2 2 6 29 11 6 25 19 ...
## $ G : Factor w/ 2 levels "KK-06","KK-08": 2 2 2 2 2 2 2 2 1 2 ...
## $ St: num 195 240 1550 243 137 ...
## $ T : num 10.9 11.1 82.9 14 6.4 ...
## $ Ca: num 0.51 15.42 55.03 36.48 12.32 ...
## $ L : num 2.04 47.92 76.32 77.05 86.96 ...
## $ Co: num 67 101 169 85 25 28 66 35 0 86 ...
## $ E : num 6385 5099 5502 7102 5580 ...
## $ I : num 22.69 9.82 8.98 8.98 10.41 ...
## $ El: num 0 4.58 30 0 12.41 ...
## $ R : num 692 660 636 652 606 ...
## $ M : num 690 662 651 644 605 ...#số quan sát và số biến
dim(ElT3060)## [1] 288 14d$logL<-log(d$L)
d$IE<- d$I+d$E
head(d$IE)## [1] 6407.601 5109.205 5510.933 7110.809 5245.068 5590.562