R Scripts

Question 1

Library(tidyverse)

Answer 1

called out database named tidyverse

Question 2

View(msleep)

Answer 2

called out dataset known as msleep

Question 3

?msleep

Answer 3

to know the description of the dataset

Question 4

names(msleep)

Answer 4

to get the list of variables

Question 5

msleep %>%

Answer 5

refer to msleep dataset

Question 6

msleep %>%
rename(“converse”=”conservation”) %>%
View()

Answer 6

rename converse to conversation in msleep

Question 7

msleep %>%
select(vore,name,everything()) %>%
View()

Answer 7

reorder the variable, have core column vore and name, followed by everything.

Question 8

msleep %>%
select(vore,name,brainwt) %>%
View()

Answer 8

only want certain variables; vore, name, and brainwt.

Question 9

msleep %>%
filter((order==”Carnivora”|order==”Primates”)& sleep_total>8) %>%
select(name,order,sleep_total) %>%

Answer 9

to filter and arrange, filter under the variables we want carnivora and primates and under sleep total we want more than 8 hours

Question 10

arrange(-sleep_total) %>%
View()

Answer 10

arrange sleep total to descending order

Question 11

mutate

Answer 11

changing the variable

Question 12

msleep %>%
mutate(brainwt_in_grams=brainwt*1000) %>%
View()

Answer 12

we want to change braiwnt from kg to grams

Question 13

drop_na(vore)

Answer 13

go to vore column and remove not available

Question 14

mutate(brain_size=if_else(brainwt>0.01,”large”,”small”)) %>%
View()

Answer 14

change numeric to categorical

Question 15

size_of_brain=msleep %>%

Answer 15

create a new file known as size of brain

Question 16

Summary()

Answer 16

shows summary

Question 17

Names(Starwars)

Answer 17

list down all the variables in starwars