“NAs introduced by coercion”

[JohnTaco93]

Hi, when I run the code, the following error appears;
Error in starting_period:nrow(sales_train): NA/NaN argument
Warning message in eval(expr, envir, enclos):
“NAs introduced by coercion”

I think this is the line that has problems:
sales_train <- as.numeric(ex_sales[,6:ncol(ex_sales)])

I changed it to:
sales_train <- as.numeric(ex_sales[,7:ncol(ex_sales)])

But I'm not sure if it's ok to make this change.

Thanks and Regards,
John Taco

[escott8908]

J

I Agree @JohnTaco93 . I think the author originally developed the script to work with sales_train_evaluation.csv instead of sales_train_validation.csv. The file sales_train_validation has an extra categorical column and therefore the index should be 7 instead of 6.