Not enough input arguments error

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Samer Husam
Samer Husam 2012-8-28
Hi all; I am plotting data from excel file by using MATLAB these data are:
x-Axis = time (from excel)
y-Axis = power (from excel)
but I am getting this error while plotting:
Not enough input arguments.
my code is :
[num,T,vT] = xlsread('Excel.xlsx','Sheet1'); % read excel
x= datestr(num(:,1),('HH:MM')); % time column
y = num(:,4); % power column
plot(handles.axes8,x,y);
why I am getting this error ? and how to solve it ?? please please help and advice... thank you very much
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Image Analyst
Image Analyst 2012-8-28
Don't paraphrase it. Copy and paste all, yes ALL, the red text.
Samer Husam
Samer Husam 2012-8-28
this is the all red message:
??? Error using ==> plot Not enough input arguments.
Error in ==> simpletab>pushbutton1_Callback at 1600 plot(handles.axes8,x1,y);
Error in ==> gui_mainfcn at 96 feval(varargin{:});
Error in ==> simpletab at 18 gui_mainfcn(gui_State, varargin{:});
??? Error while evaluating uicontrol Callback

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采纳的回答

Samer Husam
Samer Husam 2012-9-5
the problem been solved by using (datetick), as following code:
[num,T,vT] = xlsread('Excel.xlsx','Sheet1'); % read excel
x = num(:,1); % Time column
y = num(:,4); % power column
plot(handles.axes,x,y);
datetick(handles.axes8,'x',15)

更多回答（1 个）

Samer Husam
Samer Husam 2012-8-29
when I am using this code :
[num,T,vT] = xlsread('Excel.xlsx','Sheet1'); % read excel
x = num(:,1); % Time column
y = num(:,4); % power column
x1= datenum(x,'HH:MM');
plot(handles.axes8,x1,y);
I am getting this error:
??? DATENUM failed.
Error using ==> datenum at 103
The input to DATENUM was not an array of strings.
why this error is happen ??
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Samer Husam
Samer Husam 2012-8-29
I have tired this way before as well, but the error comes is :
??? DATENUM failed.
Error using ==> dtstr2dtnummx
Failed on converting date string to date number.
Walter Roberson
Walter Roberson 2012-8-29
Your code in your original Question shows you passing part of "num" to datenum(), rather than passing part of "T" to datenum(). Have you tried with "T" ? Could you show an example string that you are passing to datenum() ?

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