What does the Which function do in R?
The which() function in R returns the position or the index of the value which satisfies the given condition. The Which() function in R gives you the position of the value in a logical vector. The position can be of anything like rows, columns and even vector as well.
What is the type of function in R?
There are mainly three types of function in R programming: Primitive Functions. Infix Functions. Replacement Functions.
Is c () a function in R?
The c() is a built-in generic function that combines its arguments. The c function in R is used to create a vector with values you provide explicitly.
How do I view a function in R?
To view all the contents of a defined object, use the View() function. Behind the scenes, the R calls utils::View() on the input and returns it invisibly. If the input is not a data frame, it is processed using a variant of as. data.
Is NA function in R?
To find missing values you check for NA in R using the is.na() function. This function returns a value of true and false for each value in a data set. If the value is NA the is.na() function return the value of true, otherwise, return to a value of false.
What is data () function in R?
data() returns a list of currently loaded datasets or loads a dataset.
What does summary () do in R?
The summary is a built-in R function used to produce result summaries of various model fitting functions. The summary() function implores specific methods that depend on the class of the first argument.
What is dim () in R?
dim() function in R Language is used to get or set the dimension of the specified matrix, array or data frame. Syntax: dim(x) Parameters: x: array, matrix or data frame.
What package is VIEW () in R?
The view function in the seasonal package imports the identical seasonalview::view() function from the seasonalview package, so there is no need to explicitly load the seasonalview package.
What does str () mean in R?
str() function in R Language is used for compactly displaying the internal structure of a R object. It can display even the internal structure of large lists which are nested. It provides one liner output for the basic R objects letting the user know about the object and its constituents.
What does class () do in R?
The function class prints the vector of names of classes an object inherits from. Correspondingly, class<- sets the classes an object inherits from. Assigning NULL removes the class attribute. unclass returns (a copy of) its argument with its class attribute removed.
What is the use of %>% in R?
The compound assignment %<>% operator is used to update a value by first piping it into one or more expressions, and then assigning the result. For instance, let’s say you want to transform the mpg variable in the mtcars data frame to a square root measurement.
What does %>% mean in R studio?
%>% has no builtin meaning but the user (or a package) is free to define operators of the form %whatever% in any way they like. For example, this function will return a string consisting of its left argument followed by a comma and space and then it’s right argument.
What is Sapply in R?
sapply() function in R Language takes list, vector or data frame as input and gives output in vector or matrix. It is useful for operations on list objects and returns a list object of same length of original set. Syntax: sapply(X, FUN) Parameters: X: A vector or an object.
What does glimpse function do in R?
glimpse() is like a transposed version of print() : columns run down the page, and data runs across. This makes it possible to see every column in a data frame. It’s a little like str() applied to a data frame but it tries to show you as much data as possible.
What does %>% mean in Tidyverse?
Use %>% to emphasise a sequence of actions, rather than the object that the actions are being performed on. Avoid using the pipe when: You need to manipulate more than one object at a time. Reserve pipes for a sequence of steps applied to one primary object.
What does mutate () mean in R?
In R programming, the mutate function is used to create a new variable from a data set. In order to use the function, we need to install the dplyr package, which is an add-on to R that includes a host of cool functions for selecting, filtering, grouping, and arranging data.
What package is %>% in in R?
The pipe, %>% , comes from the magrittr package by Stefan Milton Bache. Packages in the tidyverse load %>% for you automatically, so you don’t usually load magrittr explicitly. Here, however, we’re focussing on piping, and we aren’t loading any other packages, so we will load it explicitly.