How could be the matrix constructed by using the following R code?
m <- matrix(1:6, nrow = 2, ncol = 3)
a) row-wise
b) column-wise
c) any manner
d) data insufficient
Answer: b
Explanation: If nothing is mentioned, matrix is created column-wise. If we want in row-wise then we have to specify. We have to mention “by row” to create a matrix in row wise. The filter( ) function is used to extract subsets of rows from a data frame. This function is similar to the existing subset( ) function.
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What is the output of the given code?
counter=1
if counter<=5
puts (counter)
counter=counter+1What is the output of the given code?
if(a==10 && b=9)
print “true”
else
print “false”
endWhich of the following are used for comparison?
What is the output of the given code?
a=10
b=9
if(a>b)
print (“a greater than b”)
else
print “Not greater”
endAssignment operator is also known as relational operator.
What is the output of the given code?
a=”string”
b=”strings”
if(a==b)
print (“a and b are same”)
else
print “Not same”
endWhat is the output of the given code?
test_1 = 17 > 16
puts(test_1)
test_2 = 21 <= 30
puts(test_2)
test_3 = 9 >= 9
puts(test_3)
test_4 = -11 > 4
puts(test_4)
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