Question

I have a ‘data’ file, ‘lab1.m’ in my working directory.
Here the content of them.

data:

0 1 2 3 4

2 0 9 2 7

5 6 3 4 7

lab1.m:

load data
function y = RSSI_to_dBm(x, z)

    y = data(z, x);

end

However, there’s an error when I call RSSI_to_dBm(2, 2):

octave:30> RSSI_to_dBm(2, 4)

error: `data’ undefined near line 3 column 6

error: called from:

error: RSSI_to_dBm at line 3, column 4

How can I solve it?
And how can I load ‘data’ to a variable name such as ‘A’?
Thank you for answering.

Answer 1

I have tried out a solution:

load data
function z = RSSI_to_dBm(x, y, data)

    z = data(x, y);

end

It works by passing the “data” to the function every time I call it.