by Suf | May 6, 2022 | Programming, R, Tips
If you try to use the predict() function and the column names in the test data frame do not match those in the data frame used to fit the model, you will raise the error in eval(predvars, data, env): object ‘x’ not found. The ‘x’ will be the...
by Suf | May 6, 2022 | Programming, R, Tips
If you try to perform an arithmetic operation and one or both of the operands are non-numeric, you will raise the error: non-numeric argument to binary operator. This error typically occurs when one of the operands is of character type. To solve this error, you can...
by Suf | May 5, 2022 | Programming, R, Tips
In R, if you incorrectly pass data to the predict() function when evaluating a model, you will raise the error model.frame.default: ‘data’ must be a data.frame, environment, or list. The predict() function expects a data frame. You can solve this error by...
by Suf | May 5, 2022 | Programming, R, Tips
In R, if you perform an operation on objects with different lengths, you will get the warning message: longer object length is not a multiple of shorter object length. This warning happens specifically if the length of the longer object is not a multiple of the...
by Suf | May 4, 2022 | Programming, R, Tips
In R, the error: plot.window(…): need finite ‘ylim’ values occurs when you try to plot data that contains missing or non-numeric values on the y-axis. You will get a similar error: plot.window(…): need finite ‘xlim’ values if you...
by Suf | May 4, 2022 | Programming, R, Tips
In R, if you try to load a file that does not exist using load() function, you will raise the error Error in readchar(con, 5l, usebytes = true) : cannot open the connection. To solve this error you need to check that the file exists and that the spelling you used for...
