Multiple figures in for loop

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Krithika A
Krithika A 2018-7-17
评论： Star Strider 2018-7-18
Hello,
I would like to run a for loop that produces multiple plots. I looked at other questions that ask this, but they don't seem to fit the data set I have.
This is code I have, if written out (without for loop):
N = length(y1(:,1));
T = (0:N-1)/fs;
figure
subplot(2,3,1)
plot(T,y1(:,1))
subplot(2,3,2)
plot(T,y2(:,1))
subplot(2,3,3)
plot(T,y3(:,1))
subplot(2,3,4)
plot(T,y4(:,1))
subplot(2,3,5)
plot(T,y5(:,1))
subplot(2,3,6)
plot(T,y6(:,1))
This is the code I have so far with the for loop:
figure
for q = 1:length(txtfiles); % This is the number of files I have for my data (in numerical matrices), I have 24 files that I'm interested in, where I'd like to look at 6 files at a time and only the first column
cnt = 1;
for bor=1:6:24
plot(T,y1(:,1))
cnt=cnt+1;
end
end
But I get stuck because I can't do this:
figure
for q = 1:length(txtfiles);
cnt = 1;
for bor=1:6:24
plot(T,y(q)(:,1))
plot(T,y(q+1)(:,1))
plot(T,y(q+2)(:,1))
plot(T,y(q+3)(:,1))
plot(T,y(q+4)(:,1))
plot(T,y(q+5)(:,1))
cnt=cnt+1;
end
end
Thank you for the help in advance!
  3 个评论
显示 1更早的评论
Geoff Hayes
Geoff Hayes 2018-7-17
Krithika - in your original code, you seem to have six variables for each of the subplots. If instead of using individual variables but have a cell array or matrix (if the dimensions for each y* are the same) then you can easily iterate over your single array like
for k=1:6
subplot(2,3,k);
plot(T,allData(:,1,k));
end
where allData is your three-dimensional matrix that has all data from all variables (assuming that dimensions for all y* are the same).
Krithika A
Krithika A 2018-7-18
Geoff, thank you so much! You helped a lot!
Aquatris, I would like subplots but I was first sorting out the main plots first.

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采纳的回答

Star Strider
Star Strider 2018-7-17
I would first concatenate all the (unfortunately numbered) ‘y#’ variables into a single matrix:
y = cat(3, y1,y2,y3,y4,y5,y6);
then address them such that the third dimension is now the previous number, so for example:
plot(T,y(:,1,q))
iterating ‘q’ so that ‘y3(:,1)’ is now ‘y(:,1,3)’ and so for the others.
  2 个评论
Krithika A
Krithika A 2018-7-18
编辑：Krithika A 2018-7-18
Thank you so much! Your code plus Geoff's comment helped! To anyone reading, this is what my code ended up like (Edit: To note, I put all my data into one matrix for this):
N = length(y(:,1)); % Getting length of my signal
T = (0:N-1)/fs; % Getting the time axis
yname = {'SS1','SS2','SS3','SS4','SS5','SS6'}; %Subplot titles
ytitle = {'V1','V2','V3','V4'}; % Main plot title
for i2=1:4 % Plotting multiple plots with subplots
figure
for i = 1:6
This_i = (i+((i2-1)*6)); % I have 24 columns in y, where I would like to plot six of them at a time. Thus, 4 plots with 6 subplots each
subplot(2,3,i);
plot(Tt,y(:,This_i));
title([ytitle{i2},' - ',yname{i}]);
end
end

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