Crack Your Next Data Science Interview with 300+ Questions: SQL,Statistics,Python,R,Aptitude,Project Description by TheDataMonk & TheDataMonk

Author:TheDataMonk & TheDataMonk
Language: eng
Format: azw3
Published: 2019-07-03T00:00:00+00:00

134. Explain general format of Matrices in R?

Ans.)General format is

>Temp_matrix< – matrix (vector, nrow=r ,ncol=c , byrow=FALSE,

dimnames = list ( char_vector_ rowname, char_vector_colnames))

135. Define repeat.

Ans. ) Repeat loop executes a sequence of statement multiple times. It don’t put the condition at the same place where we put the keyword repeat.

Example

> name <- c(“Pappu”, “John”)

> temp <- 5

> repeat {

print(name)

temp <- temp+2

if(temp > 11) {

break

}

}

So, this will return the name vector 4 times. First it prints the name and then increase the temp to 7 and so on.

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