by Suf | May 7, 2022 | Programming, R, Tips
This error occurs when you try to convert numeric values to Date type using the as.Date() function but do not pass an origin argument to the function. You can specify an origin, for example: df$date <- as.Date(df$date, origin=’1999-12-31′) This tutorial...
by Suf | May 7, 2022 | Programming, R, Tips
This error occurs if you try to convert the elements of a list to numeric without converting the list to a vector using unlist(). You can solve this error by using the unlist() function before calling the numeric() function, for example, num <-...
by Suf | May 7, 2022 | Programming, R, Tips
This error occurs when you attempt to subscript a data frame that contains NA values. You can solve this error by excluding the NA values during the subscript operation, for example: data[data$col1<0 & !is.na(data$col1),]$col2 This tutorial will go through the...
by Suf | May 7, 2022 | Programming, R, Tips
This error occurs you try to set limits on the y-axis using scale_y_continuous() and the y variable is not numeric. This error can happen if you use character or factor type for the y variable in your data. You can solve this error by using numeric values instead of...
by Suf | May 7, 2022 | Programming, R, Tips
This error occurs if you use a numeric variable for the fill, color, and shape aesthetics in ggplot when it expects a factor variable. You can solve this error by using a factor class variable as the grouping variable. You can convert numeric values to factor using...
by Suf | May 7, 2022 | Programming, R, Tips
If you try to aggregate a data frame and do not explicitly define the column to aggregate by, you will raise the error: aggregate.data.frame(as.data.frame(x), …): arguments must have same length. This error typically occurs if you use quotation marks to specify...
