R Notebook

This is an R Markdown Notebook. When you execute code within the notebook, the results appear beneath the code.

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plot(cars)

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clear the work space

rm(List=Ls()) # clear the environment gc() # clear Unused memory cat(“R”) # Clear the console

https://www.kaggle.com/c/titanic/data?select=train.csv

??read # FIND help in R on the function if you DO NOT know its name

Import Data from the local drive

mytraindata<-read.csv(file=“C:/R/classwork/train.csv”, header=TRUE) mytraindata # to see the current directory getwd() setwd(“C:/R/classwork”) head(mytraindata) tail(mytraindata) str(mytraindata) install.packages(“psych”) library(“psych”) describe(mytraindata) psych::describe(mytraindata) data(“mytraindata”) describe(mytraindata) head(mytraindata) mean(mytraindata\(PassengerId) mean(mytraindata\)Survied) class(mytraindata) typeof(mytraindata) is.integer(mytraindata\(PassengerId) is.integer(array(mytraindata)) sd(mytraindata\)PassengerId)