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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.

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Mohammad irfan
Mohammad irfan on 24 Apr 2019
Commented: Walter Roberson on 25 Apr 2019
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.
>>

  2 Comments

Mohammad irfan
Mohammad irfan on 24 Apr 2019
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.

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Answers (1)

Dennis
Dennis on 24 Apr 2019
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))));

  2 Comments

Mohammad irfan
Mohammad irfan on 25 Apr 2019
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

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