# Unable to plot iterated function system

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Fue Xiong on 19 Jan 2022
Edited: Torsten on 19 Jan 2022
I'm trying to plot an iterated function system based on the Barnsley Fern. The fractal is started at point (0,0) and generates new points by using 4 transformations. I received several errors and an empty graph. Any suggestions on how to go around this. I'm new to MATLAB and thanks for any help.
Errors
Graph

Torsten on 19 Jan 2022
Edited: Torsten on 19 Jan 2022
function Modern_Art
A{1} = [1;2];
n = 100;
r = rand(100,1);
for i=1:100
if r(i)<0.01
A{i+1} = [0 0;0 0.16]*A{i};
elseif 0.01 <= r(i) && r(i) < 0.86
A{i+1} = [0.85 0.04;-0.04 0.85]*A{i} + [0;1.6];
elseif 0.86 <=r(i) && r(i) < 0.93
A{i+1} = [0.2 -0.26;0.23 0.22]*A{i} + [0;1.6];
elseif 0.93 <= r(i) && r(i) < 1
A{i+1} = [-0.15 0.28;0.26 0.24]*A{i} + [0;0.44];
end
end
A = cell2mat(A);
plot(A(1,:),A(2,:))
end

R2019b

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