i keep on getting this error even after changing my codes multiple times using .* and etc. it keep on showing that i have prob with my equation when there is no visible problem.

i keep on getting this error even after changing my codes multiple times using .* and etc. it keep on showing that i have prob with my equation when there is no visible problem.

Error using .*

Matrix dimensions must agree.

Error in matlabreport>pushbutton2_Callback (line 158)

h=((s.*n.*c)/(1+(s.*n.*c)));

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in matlabreport (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)matlabreport('pushbutton2_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

>>

[Torsten]

h=((s.*n.*c)./(1+(s.*n.*c)));

And dimensions of s, n and c must be the same.

[Mohammad irfan]

yes bro i already attach the file as you can see and the dimesion is same for those 3 variables as far as i know can u please check it out if u can do anything.

Answer 1

[Dennis]

Usually the error is straight forward and you can always check the size of your elements with (size) or using the debugger.

In your code it is obvious, that not all 3 variables have the same size (s is a vector with 1000001 elements and the n and c appear to be scalar, unless you somehow enter a vector with a million elements in an edit field).

Worth noting is that the multiplication of a vector with two scalars should work with (.*) or (*). However you converted one of your scalars in a string.

This should do the trick, but maybe consider storing c as number instead:

h=((s.*n.*str2double(c))/(1+(s.*n.*str2double(c))));

[Mohammad irfan]

thank you so much dennis my error is gone but i still can't plot my graph i am getting this error

Error using plot

Error in color/linetype argument.

Error in matlabreport>pushbutton2_Callback (line 161)

plot(f,h)

please help me i need to submit my assignment

[Walter Roberson]

That is odd. Could you put a breakpoint there and check class() of h and f and size() of them?