Error in running the code

Any one can help me

[John D'Errico]

If you want help, you need to show what you are doing. Tell us what is your question about MATLAB? Instead of just pleading that you have a general problem and need help.

So show your code. Show what error you got, or why you think there is a problem in that code i it does not generate an error. If it does generte an error, then show the complete error message, thus everything in red.

[Ao Mohamed]

[Jan]

@Aya Emam: Please post code and error messages as formatted text, not as a foto. Then it is easy to use the original code by copy&paste to post an answer.

[John D'Errico]

Now that you have actually shown some code, there is still a problem. The error message tells us that your file is not what you think it contains. But we have no idea what the file truly does contain.

Finally, you need to understand that posting a PICTURE of your code is not useful. That forces someone who might help you to ttype in your code from the screen.

Is there a good reason why you want to make it more difficult to get help? Paste in the actual code. Attach the file so that someone can understand what is inside the file that you could not read.

[Ao Mohamed]

clear all; %#ok<CLALL>

close all;

clc

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

A=dlmread('Book5 measured - Copy (2).csv');

x=A(:,1); % it contains frequency column

y=A(:,2); % it contains Peak gain for phi=0 and theta=90 coloumn which is 2nd column.

plot(x,y,'-r','LineWidth',1,...

'MarkerEdgeColor','k',...

'MarkerFaceColor','g',...

'MarkerSize',13)

hold on

This the code

and This is error

Trouble reading 'Numeric' field from file (row number 1, field number 1) ==> "2.000000000000000E+009

","-1.893568374385968E+001 "\n

Error in comaesion11 (line 5)

A=dlmread('Book5 measured - Copy (2).csv');

and this is the excel sheet

Answer 1

[Jan]

dlmread cannot handle the double quotes around the numbers. Use modern import functions instead, e.g. readmatrix(). The option 'TrimNonNumeric' might be useful.

[Ao Mohamed]

can you give me example for the read matrix

this is the code

clear all; %#ok<CLALL>

close all;

clc

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

A=dlmread('Book5 measured - Copy (3).csv');

x=A(:,1); % it contains frequency column

y=A(:,2); % it contains Peak gain for phi=0 and theta=90 coloumn which is 2nd column.

plot(x,y,'-r','LineWidth',1,...

'MarkerEdgeColor','k',...

'MarkerFaceColor','g',...

'MarkerSize',13)

hold on