The as.numeric() function in R converts valid non-numeric data into numeric data. What do I mean by valid non-numeric data?…
The log() function calculates the natural logarithm (base e) of a numeric vector. By default, it calculates natural log, but…
In R, you can use the dollar sign ($ operator) to access elements (columns) of a list or a data…
The abs() function calculates the absolute value of a numeric input, returning a non-negative (only positive) value by removing any…
When working with R in an interactive mode, you don't need to use any functions or methods to print the…
To calculate the sample variance (measurement of spreading) in R, you should use the built-in var() function. It calculates the…
The tryCatch() function acts as a mechanism for handling errors and other conditions (like warnings or messages) that arise during…
The grep() function in R searches for matches to a pattern within a character vector. It returns indices or values…
Whether you are reading or writing files via programs in the file system, it is necessary to check if that…
When it comes to checking the data type of a variable, it depends on what specific thing you are looking…