All Flashcards
Concatenation function
c()
Assign arrow
Date frame function
data.frame()
To report the structure of data set
str()
To summarize- function
summery()
Reads data in interchange format
read.DIF()
Reads table from external sources
read.table()
Calculate arithmetic mean
mean()
Calculate arithmetic median
median()
This function Tells the data type, this is not the arithmetic mode
mode()
Calculates the variance in a data set
var()
This function Calculate the stander day deviation of the dataset
sd()
This function Graphs a histogram
his()
The number of elements in a victor
length
Points based on percent
quantile
Runs an expression, calculate many times
replicate()
Chooses elements at random from a victor
sample()
Calculates the square root
sqrt()
Summarizes the content of a victor
summary()
