Plot with loop work only for the last

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Ferial Assmani
Ferial Assmani 2016-3-29
评论： Ferial Assmani 2016-4-1
Dear all, on a loop (i=1:Nbr_Position) I get only the last plot
V_Time = [1, 2, 3]; % Time Vector fixe length
%
V_Data = 1:1:12; % Data Vector
Nbr_Position = 2; % Nbr of position
Nbr_Case = 2; % Nbr of cases
%
N_Rows= length(V_Time); % Nbr of rows for matrix
N_columns= length(V_Data)/N_Rows; % Nbr of columns for matrix
M_Brut= (reshape(V_Data,[N_Rows,N_columns])); % Brut matrix from Data Vector
%
%
for i=1:Nbr_Position % loop by position
M_Nett{i} = M_Brut(:,(i):(Nbr_Position):(end)); % Nett matrix
for j=1:Nbr_Case % loop by case
plot(V_Time,M_Nett{i}(:,1:j)') % plot pair
title(['Position N°: ' num2str(i)]) % title
legend(genvarname(repmat({'Case'},1,j),'Case')) % legend
end
end
Why i cannot get the plot for i = 1 and i = 2 ?????

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2016-3-29
Use
hold on
  4 个评论
显示 2更早的评论
Ferial Assmani
Ferial Assmani 2016-4-1
Dear Mr Azzi, for reason of clarity, i want to plot separately all figures, thy mast be (Nbr_Position * Nbr_Case) plot, i have tried this but it does not work:
clear all; clc; close all;
V_Time = [1, 2, 3]; % Time Vector fixe length
%
V_Data = 1:1:12; % Data Vector
Nbr_Position = 2; % Nbr of position
Nbr_Case = 2; % Nbr of cases
%
N_Rows= length(V_Time); % Nbr of rows for matrix
N_columns= length(V_Data)/N_Rows; % Nbr of columns for matrix
M_Brut= (reshape(V_Data,[N_Rows,N_columns])) % Brut matrix from Data Vector
%
%
for i=1:N_columns % loop by position
figure
for j=1:Nbr_Case % loop by case
plot(V_Time',M_Brut(:,i)) % plot Time Vs M_Brut (Data i line)
end
title(['Position N°: ' num2str(i) ' &' ' Case ' num2str(j)]) % title
legend(['Case' num2str(j)]) % legend
end

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更多回答（1 个）

Ced
Ced 2016-3-29
The matlab documentation is really good for that:
Plot Help
You need to:
a) open a new figure in each iteration of i
b) Keep the old lines as Azzi Abdelmalek pointed out.
for i=1:Nbr_Position % loop by position
%%OPEN NEW FIGURE WINDOW HERE
%%MAKE SURE OLD LINES ARE KEPT (see Azzi's answer)
for j=1:Nbr_Case % loop by case
plot(V_Time,M_Nett{i}(:,1:j)') % plot pair
% ...
end
end
I will let you fill in the blanks

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