Index in position 2 exceeds array bounds.

I am getting this error for following code to export the the data from graph.

[KSSV]

Check the size of the variable num.

whos num

It seems, num is only a array with once column.

[Venkata]

> whos num

Name Size Bytes Class Attributes

num 0x0 0 double

[Venkata]

should i need to change any thing

[Venkata]

num = readmatrix('viveek.xlsx');
x = num(:,1);
y = num(:,2);
x1 = -17:0.09:0.9;
y1 = interp1(x,y,x1,'spline');
figure(1);
plot(x,y,'+b',x1,y1,':.');
title('linear interpolation');
fig = gcf;
axObjs = fig.Children;
dataObjs = axObjs.Children;
x = dataObjs(1).XData;
y = dataObjs(1).YData;

[Dyuman Joshi]

The variable num is empty, as it shows in its size. You can't access any elements from it.

Check if the excel file is empty or not. What are the contents of the excel file?

[Venkata]

The excel file was empty

Should i fill any thing overthere

[Jan]

Well, yes, of course you should use an Excel file with values.