Conversion to double from cell is not possible

I'm working with a script that simulates a communication channel, and am running into a "Conversion to doube from cell is not possible". The line throing an error works normally in a script, however when I put it inside a custom defined function within my script I get an error.

R is a 1339x17 double

D is a 16384x1 double

N, Npst, and Npre are constants of 1352, 13, and 2, respectively.

How could I cast the cell into a double without having an error being thrown?

Thanks!

Answer 1

[Voss]

Set a breakpoint at that line in your function, and when the breakpoint is triggered, check the class of D. I suspect you'll find it is a cell array.

The problem may be that you have some other variable in the function, also called D, which is a cell array, and which is defined later than the double D, and so it is replacing the initially-defined double D. (This is why it's necessary to check the variable(s) when the line is actually executed.)

[Kenneth]

Thanks!

[Voss]

You're welcome!