Blog
How to Solve R Error: non-numeric argument to binary operator
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...
How to Solve R Error model.frame.default: ‘data’ must be a data.frame, environment, or list
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 ensuring the...
How to Solve R Warning: longer object length is not a multiple of shorter object length
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...
How to Solve R Error: plot.window(…): need finite ‘ylim’ values
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 have missing or non-numeric values...
How to Solve R Error in readchar(con, 5l, usebytes = true) : cannot open the connection
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...
How to Solve R Error in Function: unused arguments
In R, if you try to call a function and pass arguments that are not defined, you will raise the error: unused arguments. The error message will indicate which argument is unnecessary, and you can remove it to solve the error. If you are using a built-in function, you...
How to Solve R error in xy.coords(x, y, xlabel, ylabel, log): ‘x’ and ‘y’ lengths differ
If you try to plot two variables and the variables do not have the same length, you will encounter the error: 'x' and 'y' lengths differ. You can solve this error by ensuring the variables have the same length or by plotting only up to where the variables are the same...
How to Solve R Error in apply: dim(X) must have a positive length
If you want to use the call a function on the data frame or matrix column using apply(), you must use a data frame or matrix as the first argument. If you use a column of the data frame or matrix, you will raise the error: dim(X) must have a positive length. You can...
How to Solve R Error: attempt to apply non-function
In R, if you are missing mathematical operators when performing mathematical operations, you can raise the error: attempt to apply non-function. This error occurs because the R interpreter expects a function whenever you place parentheses () after a variable name. You...
How to Solve R Error in fix.by(by.y, y): ‘by’ must specify a uniquely valid column
If you try to merge two data frames by a column only present in one of the data frames you will raise the error fix.by(by.y, y): 'by' must specify a uniquely valid column. You can solve this error by either using a column name present in both data frames for the by...
Suf is a senior advisor in data science with deep expertise in Natural Language Processing, Complex Networks, and Anomaly Detection. Formerly a postdoctoral research fellow, he applied advanced physics techniques to tackle real-world, data-heavy industry challenges. Before that, he was a particle physicist at the ATLAS Experiment of the Large Hadron Collider. Now, he’s focused on bringing more fun and curiosity to the world of science and research online.