How to Convert NA to Factor Level in R

To convert NA to factor level in R, you can use the “addNA()” method. Syntax addNA(data) Parameters data: It is a factor. Visual representation Example ftor <- as.factor(c(“K”, “B”, NA, “M”, “L”)) print(ftor) print(“After converting NA to factor level”) print(addNA(ftor)) Output That’s it! Krunal LathiyaKrunal Lathiya is a seasoned Computer Science expert with over eight … Read more

R args() Function

The args() function in R is used to display a function’s argument list, showing you the names of the arguments and default values if they exist. This function is specifically helpful when you are learning a new function or need a quick reminder of a function’s structure without needing to look up the full documentation. … Read more

R str_glue() Function

R str_glue() function concatenates strings together, often using variables within the string. It is used for string interpolation, allowing you to easily construct strings by embedding expressions within a string. Syntax str_glue(…, .sep, .envir = parent.frame(), .x, .na = “NA”) Parameters …: These are the strings to be concatenated. Strings can be a mix of … Read more

R str_detect() Function

The str_detect() function is used to check if a pattern exists within a string or strings. This function is specifically helpful for identifying strings that match a certain pattern, such as a substring, a regular expression, or a fixed string pattern. Syntax str_detect(string, pattern, negate = FALSE) Parameters string: It is a character vector. pattern: … Read more

How to Calculate Mean / Average in R

To calculate a mean or average in R, you can use the mean() function. For example, mean(c(1, 2, 3, 4)) function returns 2.5. Syntax mean(x, trim, na.rm) Example 1: Calculating the mean of a vector vec <- c(11, 21, 19, 18, 51, 51, 71) # Calculating average using mean() mean(vec) Output [1] 34.57143 Example 2: Calculating the … Read more

How to Append an Element to a List in R [4 Ways]

Here are four ways to add/append an element to a list in R: Using append() Using c() Using the ‘rlist’ library Using \$ operator Method 1: Using append() You can use the “append()” function to add an element at the end of the list, but it provides an argument through which you can add an element … Read more

R do.call() Function

The do.call() function allows you to call a function with arguments specified in a list or a named list. Syntax do.call(what, args) Parameters what: It represents either the function or a non-empty character and names the function to be called. args: It represents the list of arguments to the function call. Return value It returns the … Read more

R If then Statement (With Examples)

Use the “if() {}” function to create an if-then statement in R. The if() function has two main elements, a logical test in the parentheses and conditional code in curly braces. The code in the curly braces is conditional because it is only evaluated if the logical test contained in the parentheses is TRUE. Syntax … Read more

R Matrix: Create, Access, Edit, and Delete Matrix

R matrix is a two-dimensional, rectangular data structure that consists of elements of the same atomic type (most commonly numeric, but can be logical, character, or complex). Matrices are suited for mathematical and statistical operations, where linear algebra (like matrix multiplication, transpose, etc.) plays a key role. Creating a Matrix To create a matrix in … Read more

How to Install R and RStudio on Mac

How to Install R on Mac Open the web browser and go to www.r-project.org. Click the “Download R” link in the middle of the page under “Getting Started.” Select the nearest region’s CRAN location (a mirror site) and click the corresponding link. Click on the “Download R for (Mac) OS X” link at the top of … Read more