by Suf | May 2, 2022 | Programming, R, Tips
In R, if the evaluation of a condition in an if or while statement results in NA, you will raise the error: missing value where TRUE/FALSE needed. You can solve this error by using is.na(x) instead of x == NA. This tutorial will go through the error in detail and how...
by Suf | May 2, 2022 | Programming, R, Tips
If you try to refer to an object that has not been defined in an R code block or before it, you will raise the error object not found. The R interpreter could not find the variable mentioned in the error message. You can check if a variable exists using ls or exists,...
by Suf | May 2, 2022 | Programming, R, Tips
This error occurs when you try to read a CSV file into R using read.table() and do not specify the correct separator. You can solve this error by specifying the sep argument for the read.table() function call. For example, df <- read.table(“pizzas.csv”,...
by Suf | May 1, 2022 | Programming, R, Tips
If you try to access a column or row that does not exist, you will raise the error Subscript out of bounds. You can use nrows(matrix) to find the number of rows of a matrix, ncol(matrix) to find the number of columns in a matrix and dim(matrix) to find the number of...
by Suf | May 1, 2022 | Programming, R, Tips
If you try to index a function using square brackets [] or the dollar sign operator $, you will raise the error: object of type ‘closure’ is not subsettable. This error typically occurs when using square brackets to subset a function mistaken for a...
by Suf | May 1, 2022 | Programming, R, Tips
If you try to read a CSV file in R but the file name or directory that the file is in does not exist, you will raise the Error in file(file, “rt”) cannot open the connection. If the file does exist, you can either change your working directory to location...
