Question

Create a list in R named hw_list containing the quantities 'homework quantities',v; w; z; A and name these quantities comp_1, comp_2, comp_3, comp_4 and comp_5 respectively

Answer 1

The above problem can be solved in the following steps-

There are two ways in which we can create a list with certain items and name those items. I will explain both the ways here-

FIRST WAY-

STEP 1- First we will declare the list and initialize the hw_list with the items mentioned in ques.

STEP 2- Then using the names function in R, we will name all the items as comp_1, comp_2, comp_3 etc.

R CODE-

#initialize the list with all the items mentioned in question
hw_list <- list('homework quantities','v', 'w', 'z', 'A')
#use the names function with parameter as hw_list created above
#give the names of all items
names(hw_list) <- c('comp_1', 'comp_2','comp_3','comp_4','comp_5')
#print the list
print(hw_list)

IMAGE OF CODE-

e non hanno semp e 1 #initialize the list with all the items mentioned in question 2 hw_list <- list('homework quantities', 'v', 'w', 'z', 'A'). 3 #use the names function with parameter as hw_list created above 4 #give the names of all items 5 names (hw_list) <- c('comp_1', 'comp_2', 'comp_3', 'comp_4', 'comp_5') 6 #print the list 7 print (hw_list)

OUTPUT-

$comp_1 [1] "homework quantities" $comp_2 [1] $comp_3 [1] "W" $comp_4 [1] "Z" $comp_5 [1] "A"

SECOND WAY-

Now we will discuss the second approach.

STEP 1- In this approach, we can directly give the name and item while initializing the list in the list function.

While inserting items, just add the name and item as a key-value pair in the list function as shown in below syntax.

R CODE-

#create and intialize the list
#in the initialization itself,give the name of item and item value as key-value pair
hw_list <- list("comp_1"='homework quantities', "comp_2"='v',"comp_3"='w',"comp_4"='z',"comp_5"= 'A')
#print the list
print(hw_list)

IMAGE OF CODE-

1 #create and intialize the list 2 #in the initialization itself, give the name of item and item value as key-value pair 3 hw_list <- list("comp_1"='homework quantities', "comp_2"='v',"comp_3"='w', "comp_4"='z'. ,"comp_5"= 'A') 4 #print the list 5 print (hw_list)

OUTPUT-

$comp_1 [1] "homework quantities" $comp_2 [1] "V" $comp_3 [1] "W" $comp_4 [1] "Z" $comp_5 [1] "A"

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