library(data.table)
BigDiamonds <- fread("C:/Users/dell/Desktop/BigDiamonds.csv")
##
Read 26.8% of 598024 rows
Read 48.5% of 598024 rows
Read 66.9% of 598024 rows
Read 93.6% of 598024 rows
Read 598024 rows and 13 (of 13) columns from 0.049 GB file in 00:00:07
str(BigDiamonds)
## Classes 'data.table' and 'data.frame': 598024 obs. of 13 variables:
## $ V1 : chr "1" "2" "3" "4" ...
## $ carat : num 0.25 0.23 0.34 0.21 0.31 0.2 0.2 0.22 0.23 0.2 ...
## $ cut : chr "V.Good" "Good" "Good" "V.Good" ...
## $ color : chr "K" "G" "J" "D" ...
## $ clarity : chr "I1" "I1" "I2" "I1" ...
## $ table : num 59 61 58 60 59 60 63 61 57.5 65 ...
## $ depth : num 63.7 58.1 58.7 60.6 62.2 64.4 62.6 59.2 63.6 54.9 ...
## $ cert : chr "GIA" "GIA" "GIA" "GIA" ...
## $ measurements: chr "3.96 x 3.95 x 2.52" "4.00 x 4.05 x 2.30" "4.56 x 4.53 x 2.67" "3.80 x 3.82 x 2.31" ...
## $ price : int NA NA NA NA NA NA NA NA NA NA ...
## $ x : num 3.96 4 4.56 3.8 4.35 3.74 3.72 3.95 3.87 3.83 ...
## $ y : num 3.95 4.05 4.53 3.82 4.26 3.67 3.65 3.97 3.9 4 ...
## $ z : num 2.52 2.3 2.67 2.31 2.68 2.38 2.31 2.34 2.47 2.14 ...
## - attr(*, ".internal.selfref")=<externalptr>
dim(BigDiamonds)
## [1] 598024 13
class(BigDiamonds)
## [1] "data.table" "data.frame"
nrow(BigDiamonds)
## [1] 598024
ncol(BigDiamonds)
## [1] 13
summary(BigDiamonds)
## V1 carat cut color
## Length:598024 Min. :0.200 Length:598024 Length:598024
## Class :character 1st Qu.:0.500 Class :character Class :character
## Mode :character Median :0.900 Mode :character Mode :character
## Mean :1.071
## 3rd Qu.:1.500
## Max. :9.250
##
## clarity table depth cert
## Length:598024 Min. : 0.00 Min. : 0.00 Length:598024
## Class :character 1st Qu.:56.00 1st Qu.:61.00 Class :character
## Mode :character Median :58.00 Median :62.10 Mode :character
## Mean :57.63 Mean :61.06
## 3rd Qu.:59.00 3rd Qu.:62.70
## Max. :75.90 Max. :81.30
##
## measurements price x y
## Length:598024 Min. : 300 Min. : 0.150 Min. : 1.000
## Class :character 1st Qu.: 1220 1st Qu.: 4.740 1st Qu.: 4.970
## Mode :character Median : 3503 Median : 5.780 Median : 6.050
## Mean : 8753 Mean : 5.991 Mean : 6.199
## 3rd Qu.:11174 3rd Qu.: 6.970 3rd Qu.: 7.230
## Max. :99990 Max. :13.890 Max. :13.890
## NA's :713 NA's :1815 NA's :1852
## z
## Min. : 0.040
## 1st Qu.: 3.120
## Median : 3.860
## Mean : 4.033
## 3rd Qu.: 4.610
## Max. :13.180
## NA's :2544
summary(BigDiamonds$price)
## Min. 1st Qu. Median Mean 3rd Qu. Max. NA's
## 300 1220 3503 8753 11170 99990 713
names(BigDiamonds)
## [1] "V1" "carat" "cut" "color"
## [5] "clarity" "table" "depth" "cert"
## [9] "measurements" "price" "x" "y"
## [13] "z"