Specify table variables using numeric or logical indices, variable names, or a function handle that returns a logical scalar. Unable to convert to type ''{0}''. Specify the data type as the name of a class or a function handle. Specify the data type as text containing the name of a class, or a function handle. Converting to data type 'char' converts variables into cell arrays of character vectors rather than a character array. Storing text data as character arrays in a table is not recommended. When working with text data in a table or a timetable, consider using a string array or a categorical array. Converted variables must maintain the same number of rows as the original variables. Row names are not supported as a data variable. Unrecognized variable name ''{0}''. You may have intended to access the row names, which are named ''{1}'' in this table. However, row names are not supported as a data variable. The ''{0}'' argument must be constant.