R Questions Set 28:
The simplest artificial neuron is the _____.
Solution:
How many main functions exist in the tidyr package for tidying data?
Solution:
________ level plotting functions in R start a new plot.
Solution:
Which function carries out a chi-square test?
Solution:
Which of the following commands declares the current plot as unused?
Solution:
Which of the following is the symbol for the standard normal probability density function (PDF)?
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How to find out whether the means of 2 groups are equal to each other or not?
Solution:
The Gaussian distribution is the most common probability distribution to work with.
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The filter() function is similar to the existing subset() function in R but is quite a bit faster.
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Explain the output of the code snippet.
> f <- function(num) {
+ hello <- "Hello, world!\n"
+ for(i in seq_len(num)) {
+ cat(hello)
+ }
+ chars <- nchar(hello) * num
+ chars
+ }
> meaningoflife <- f(3)
> print(meaningoflife)
Solution:
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