r studio

Question 1

Script

Answer 1

here you ca write your commands

Question 2

console

Answer 2

R will carry out mathematics, functions- computations in the console. You can
directly type in commands in the console, or you can
select the commands you want to run in the script

Question 3

install.packages(“tidyverse”)

Answer 3

install.packages(“tidyverse”)

Question 4

brackets mean

Answer 4

function

Question 5

Load the tidyverse package using, we need to install once, but then we need to load it

Answer 5

library(“tidyverse”)

Question 6

check which directory you are in

Answer 6

getwd()

Question 7

when you want to view

Answer 7

View()

Question 8

when you want to connect

Answer 8

pipe operator, >%>

Question 9

connect stars wand view

Answer 9

starswars>%>View()

Question 10

what do you do when you are interested in one variable

Answer 10

dataset>%>select()>%:>View()

Question 11

if you want to look at the mean, average data in console

Answer 11

dataset>%>summary()

Question 12

when you want to install a data set and create and object

Answer 12

titanic<-read.csv (“titanic.csv”, sep=”,”)

Question 13

when we put the arrow what it means

Answer 13

we create a new object

Question 14

what do we tell after the arrow

Answer 14

after the arrow we tell how to create the object

Question 15

how do you import a data set

Answer 15

read.csv

Question 16

after read.csv what do we put

Answer 16

read.csv (“titanic.csv”, sep=”,”)

Question 17

how many variables code

Answer 17

titanic %>% colnames()

Question 18

now we want to create a new object from the titanic and only choose fare

Answer 18

drownedpassengers <- titanic %>% select(Survived, Fare)

Question 19

if you want to choose one specific

Answer 19

we use the function filter()

Question 20

if we want to filter only the ones who didn’t survive

Answer 20

drownedpassengers <- drownedpassengers %>%
filter(Survived == 0)

Question 21

explain what the Global environment is, where to find it and how to clean it

Answer 21

Global Environment refers to the workspace where all user-defined objects, such as variables, data frames, functions, and plots, are stored during your R session.

Question 22

change environment

Answer 22

setwd

Question 23

<-

Answer 23

left assigenemtn operator, used to assign to variables or objects

Question 24

what is a package

Answer 24

it is a package of tools, functions and codes