Asked by Gonzalo Reina
on 14 Nov 2017

if true

% N = 5000;

z = 2*randn(N,1);

x = (-9:0.25:9);

z1 = reshape(z,[10,500]);

y = mean(z1);

sdy = std(y);

E = exp(-(x.^2)./(2*(sdy^2)));

DeltaNy = (500./(sdy*sqrt(2*pi))).*E.*0.25;

plot(x,DeltaNy,'r-');

end

I have to use the formula for delta n which depends on the standard deviation of y but this values is too small and

I get Subscript indices must either be real positive integers or logicals. I don't know how to make the formula work, I need it to plot the normal distribution on a histogram. I have to use THAT formula and cant change it.

Answer by Star Strider
on 14 Nov 2017

Accepted Answer

The code you posted runs without error for me (in R2017b).

If it is throwing an error, please copy the complete error message (all the red text) from your Command Window and paste it to a Comment here.

Gonzalo Reina
on 14 Nov 2017

Star Strider
on 14 Nov 2017

My pleasure.

If my Answer helped you solve your problem, please Accept it!

Image Analyst
on 25 Sep 2018

When k is 1, then k-5 is -4. You can't have a negative 4 as the row number of a matrix.

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