Difference between revisions of "R: data"
Jump to navigation
Jump to search
Onnowpurbo (talk | contribs) (Created page with " data() # Loading data(mtcars) # Print the first 6 rows head(mtcars, 6) # 1. Loading data("mtcars") # 2. Print head(mtcars) summary(mtcars) # Number of rows (obs...") |
Onnowpurbo (talk | contribs) |
||
| (7 intermediate revisions by the same user not shown) | |||
| Line 14: | Line 14: | ||
# Number of rows (observations) | # Number of rows (observations) | ||
nrow(mtcars) | nrow(mtcars) | ||
| − | |||
# Number of columns (variables) | # Number of columns (variables) | ||
ncol(mtcars) | ncol(mtcars) | ||
| + | |||
| + | |||
| + | data("iris") | ||
| + | head(iris) | ||
| + | |||
| + | data("ToothGrowth") | ||
| + | head(ToothGrowth) | ||
| + | |||
| + | data("PlantGrowth") | ||
| + | head(PlantGrowth) | ||
| + | |||
| + | data("USArrests") | ||
| + | head(USArrests) | ||
| + | |||
| + | |||
| + | ==Basic R Functions== | ||
| + | |||
| + | data(mtcars) | ||
| + | summary(mtcars) | ||
| + | quantile(mtcars$cyl,seq(0,1,.1)) # here seq gives | ||
| + | fivenum(mtcars$cyl) | ||
| + | sd(mtcars$cyl) | ||
| + | var(mtcars$cyl) | ||
| + | range(mtcars$cyl) | ||
| + | |||
| + | mad(mtcars$cyl) | ||
| + | IQR(mtcars$cyl) | ||
| + | |||
| + | # skewcoeff(mtcars$cyl) | ||
| + | # skewcoeff(mtcars$cyl) | ||
| + | |||
| + | |||
| + | ==Pranala Menarik== | ||
| + | |||
| + | * [[R]] | ||
Latest revision as of 10:28, 28 November 2019
data()
# Loading data(mtcars) # Print the first 6 rows head(mtcars, 6)
# 1. Loading
data("mtcars")
# 2. Print
head(mtcars)
summary(mtcars)
# Number of rows (observations) nrow(mtcars) # Number of columns (variables) ncol(mtcars)
data("iris")
head(iris)
data("ToothGrowth")
head(ToothGrowth)
data("PlantGrowth")
head(PlantGrowth)
data("USArrests")
head(USArrests)
Basic R Functions
data(mtcars) summary(mtcars) quantile(mtcars$cyl,seq(0,1,.1)) # here seq gives fivenum(mtcars$cyl) sd(mtcars$cyl) var(mtcars$cyl) range(mtcars$cyl)
mad(mtcars$cyl) IQR(mtcars$cyl)
# skewcoeff(mtcars$cyl) # skewcoeff(mtcars$cyl)