Dot indexing is not supported for variables of this type.

i attached my code .. when i run my code .. there are some erros like , "Dot indexing is not supported for variables of this type. "

why is that ? Need help please ,

Answer 1

[Walter Roberson]

You posted several hundreds of lines of code without including the input files and indication of what we should enter at the input() prompts . You also failed to include a complete copy of the error message so we do not know which line the message was on or which variables were involved . We can only make guesses as to the cause of the problem .

What I notice is that you use importdata and that in the btext case you use dot indexing of the result to access the textdata field. However importdata does not necessarily return a struct for txt files .

My recommendation is to never use importdata . The output it produces is too inconsistent .

[Mohammad Junayed]

problem is now, "Index in position 1 is invalid. Array indices must be positive integers or logical values."

[Walter Roberson]

Your x is empty. length(x) is 0 so mod(length(x),2)==0 is true. x(end-1,1) is then x(0-1,1) which is x(-1,1) which is not valid indexing .