I get Subscript indices must either be real positive integers or logicals.

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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.

Akzeptierte Antwort

Star Strider
Star Strider am 14 Nov. 2017
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.
  5 Kommentare
Star Strider
Star Strider am 14 Nov. 2017
My pleasure.
If my Answer helped you solve your problem, please Accept it!
Image Analyst
Image Analyst am 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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Image Analyst
Image Analyst am 14 Nov. 2017

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