The fromJSON() function in R is “used to convert a JSON into an R object.” It reads the content in JSON format and de-serializes it into logicals, integers, real numbers, strings, arrays, and lists. Syntax fromJSON( json_str, file, method = “C”, unexpected.escape = “error”, simplify = TRUE ) Parameters json_string: It is a JSON object to convert. file: … Read more
To calculate the product in R, you can use the “prod()” function. The prod() function in R is “used to calculate the product of the individual elements in the vector specified as its arguments”. Syntax prod(…, na.rm = FALSE) Parameters …: They are numeric, complex, or logical vectors. na.rm: It is a logical argument. Whether … Read more
To convert radians to degrees in R, you can use the “rad2deg()” function. Syntax rad2deg(number) Parameters number: It accepts a number in radians. Example 1: Converting radians to degrees using REdaS To work with the rad2deg() function, you must install the REdaS package in your system. The next step will be to create an R file and … Read more
Here are three ways to move files between folders in R: Using the file.move() function Using the file.copy() function Using the file.rename() function Method 1: Using the file.move() function To use the file.move() method in R, you must install the “filesstrings” package because of the file.move() method belongs to the “filesstrings” package. library(filesstrings) source <- … Read more
The sin() function in R is “used to calculate the sine of a number in radians“. For example, sin(0) returns 0 and sin(pi/2) returns 1. Syntax sin(number) Parameters number: It accepts a number representing an angle in radians as a parameter. Return value The sin() function returns the sine of a number (in radians) sent … Read more
The log2() function in R is “used to calculate the logarithm of a number to the base 2″. Syntax log2(number) Parameters number: It is a number whose logarithm base 2 must be calculated. Return value It returns the logarithm of a number to the base 2. If the number is zero, then this function outputs … Read more
The lapply() function in R is “used to apply a function to a list, data frame or a vector, returning a list of the same length“. Syntax lapply(X, FUN) Parameters X: A vector or an object. FUN: Function applied to each element of X. Example 1: Iterate over a vector using the lapply() function movies … Read more
A percentile is a statistical measure that suggests the value below which a percentage of data falls. For example, the 60th percentile is the value below which 60% of the observations may be found. Formula Percentiles can be calculated using the following formula: Percentile = (rank – 1) / (total observations – 1) * 100 … Read more
To calculate the determinant of a specific matrix in R, you can use the “det()” function. Syntax det(data, logarithm = TRUE) Parameters data: It is a matrix whose determinant needs to be calculated. Logarithm: It is a logical argument; If TRUE (default) returns the logarithm of the determinant’s modulus. Example 1: R Program to calculate … Read more
The apply() in R is “used to apply a function to the rows or columns of a data frame, matrix or array“. Syntax apply(X, MARGIN, FUN) Parameters The X is either an array, matrix, or data frame. The MARGIN parameter can take a value or range between 1 and 2 to define where to apply the function. The … Read more