Index exceeds the number of array elements (1).

Hello. I do know how to solve this error message:

Index exceeds the number of array elements (1).

B1=(abs_rock*Q_north(Hour)*A_nw+h_o*A_nw*T_o(Hour))

My matrix_A works but I have an issue with Matrix_b which originates from the values I input.

How do I fix it so I can move on?

[Image Analyst]

Can you attach abs_rock and other needed variables in a .mat file so we can run your code?

[Student]

This is the code

i want the values for each hour and then use the results to create graph for each surface for every hour.

Thank you for answering.

[Image Analyst]

No that was not all the code. Here's proof. I just copied, pasted, and ran your code in a new editor script called test.m and this is what I got:

>> test

Unrecognized function or variable 'abs_rock'.

Error in test (line 3)

B1=(abs_rock*Q_north(Hour)*A_nw+h_o*A_nw*T_o(Hour))

Why do you think it should know what abs_rock is? It doesn't.

But it looks like Cyclist got your code to work even without all of it, so that's good. In the future though, attach all your code or attach your data and code to read in the data from a file. You'll get an answer much sooner. Anyway, thanks for Accepting his answer to award him reputation points.

Answer 1

[the cyclist]

When you make this assignment:

T_o=10+15.*sin((Hour-9).*(pi/12));

it looks like T_o is a scalar (i.e. length 1), but then you do

T_o(Hour)

which will give you the error you saw, when Hour == 2. Maybe you intended

T_o(Hour)=10+15.*sin((Hour-9).*(pi/12));

[Student]

Thank you so much!

Answer 2

[Student]

You are right i should have attached the whole question. I am a bit new at this i do really appreciate your help as well. Maybe you can help me with my next question please?