Dear Anom Klmo

Have a look:

https://www.datacamp.com/community/tutorials/15-easy-solutions-data-frame-problems-r

Kind Regards

Qamar Ul Islam

I think first, you have to change the class of data

data

Dear Anom Klmo

The variable data should be a data frame. You should check whether the input file is actually in a dataframe format with columns and rows. It must be made if it is not, however, if the data is in rows and columns, then simply follow Proloy Barua's suggestion. Thanks