only reading and plotting data for one file while I want it to read and plot data for 12 files

Question

muhammad choudhry 2021-4-19

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/806602-only-reading-and-plotting-data-for-one-file-while-i-want-it-to-read-and-plot-data-for-12-files

回答： Mathieu NOE 2021-4-21

Hi,

I am trying to read column 4 and 10 from 12 excel files and plot 12 graphs from it but I am only getting plot 1. Below is the code can you guide me how to do it properly.

Code:

close all; clear all; clc;
% To access the folder
folder = fullfile('C:','Users','muhammad','Documents','PhD_3rdYr','Experiments_2021','performance_110');
files = dir( fullfile(folder, '*.ods') );
% Reading and extracting data from 12 excel files hence plotting
for ii = 1:length(12)
     data = readmatrix(fullfile(files(ii).folder,files(ii).name), 'NumHeaderLines', 1)
     x= data(:,10)
     y=data(:,4)
     figure(1)
% Plotting data
plot(x,y,'x','LineWidth',0.5);
hold on
%Spacing and griding
xlim([0 6])
ylim([0 0.8])
hold on
grid on
% Outlet starting 
y = 0.237;
line ([0,5],[y,y],'color','r');
txt = {'Outlet,Invert Level = 237 mm'};
text(1,0.25,txt)
% Design Head 
y = 0.737; %17 mm
line ([0,5],[y,y],'color','r');
txt = {'Design Head = 737 mm'};
text(1,0.76,txt)
% Design Limit Box
x =5;
line ([x,x],[0,0.737],'color','r')
hold on
%Chart Representation
    title('Outlet-110 mm');
    xlabel('flowrate (l/s)');
    ylabel('Head (m))');
   % legend('VFC');
     end 