furqon

Learn R

course from GreatLearning

Introduction

types

• numeric (ex: 1, 2, 3.4 regardless of float and integer)
• character (string with one quote (') or two ("))
• logical (TRUE / T and FALSE / F, if combine in numeric will be T = 1, F = 0)
• complex (numeric with imaginary factor ex 13+6i)

furqon

Inbuilt Function in R

Basic

var = dataframe str(var) get data structure of dataframe head(var, n=x) get the first x data (x default 6) tail(var, n=x) get the last x data (x default 6) table(tblx$colName) get the freq of dataframe from categorical column min(tblx$colName) get the min value of the column max(tblx$colName) get the max value of the column mean(tblx$colName) get the mean value of the column