Cannot set camera position because of negative integers

So I want to set the camera position depending on a 3d point in the figure. If I print the current camera position to the console, I get the following output

campos =

  279.5283
 -101.4030
 -740.6563

If I want to set the camera position

cpos =

  347.2583
  -96.3936
 -711.3793
 
 campos(cpos');

I get the error 'Array indices must be positive integers or logical values.'

I don't understand what I am doing wrong, because the campos cleary also has negative values.

Answer 1

[Walter Roberson]

campos =

279.5283
-101.4030
-740.6563

That tells us that you assigned something to a variable named campos

campos(cpos');

and now you are trying to use campos as a function. But it is not a function, it is a variable because you assigned to it.

[link]

Ok you are right, thanks. There was a variable in my workspace...

But actually campos can print the current camera position (https://www.mathworks.com/help/matlab/ref/campos.html)

[Walter Roberson]

Notice your output had "compos =" at the beginning of it. If you had been calling the campos() function, then the result would have started "ans =" . MATLAB only displays "NAME =" when there is a variable with the given name that is being displayed.

[link]

That is good to know :D I did not realize this