0 个投票

Hello Everyone,
I have some data as attached. Then I have the code to plot the graph. But I have to convert my file to excel first.
Anyway have that I can plot grpah wothout convert my file to excel?
clc
clear all
close all
spec=readlines('nema2.spe'); % read as text
whos spec
data=readmatrix('nema2.spe.xlsx'); %the data from point1.prn must export to excel first.
whos data
%then from excel, it can be plotted.
plot(data(:,1),data(:,2))

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Star Strider
Star Strider 2024-8-8
Ran in:

0 个投票

Ran in:
There is no need to convert it to Excel. It is only necessary to tell readmatrix (introduced in R2019a) that it is a text file, since that is not obvious from the file extension. Otherwise, readtable (inttroduced in R2013b) will work, with a minor modification to the readmatrix code.
Try this —
Uz = unzip('name2.zip')
Uz = 1x1 cell array
{'name2.spe'}
A1 = readmatrix(Uz{1}, 'FileType','text')
A1 = 512x2
0.5000 0.4389 1.0000 0.4886 1.5000 0.5076 2.0000 0.5121 2.5000 0.5063 3.0000 0.4991 3.5000 0.4867 4.0000 0.4771 4.5000 0.4651 5.0000 0.4516
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x = A1(:,1);
y = A1(:,2);
figure
plot(x, y)
grid
T1 = readtable(Uz{1}, 'FileType','text')
T1 = 512x2 table
Var1 Var2 ____ _______ 0.5 0.43895 1 0.48862 1.5 0.5076 2 0.51209 2.5 0.50632 3 0.49912 3.5 0.48669 4 0.47707 4.5 0.46511 5 0.4516 5.5 0.43467 6 0.42078 6.5 0.4021 7 0.3875 7.5 0.37563 8 0.3562
x = T1{:,1};
y = T1{:,2};
figure
plot(x, y)
grid
.

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mohd akmal masud
mohd akmal masud 2024-8-8
编辑：mohd akmal masud 2024-8-8
Thank you @Star Strider. Its Work.
Then how to:
1) add title axis? let say i want my x axis is Energy(keV), my y axis is counts.
2) If I want to add the another graph in one figure, how? Let saya as attached is my another graph.
example:
colordepth
colordepth 2024-8-8
For a quick introduction to plotting and to enhance your MATLAB skills, I highly recommend completing the MATLAB Onramp course. This 2-hour course will guide you through the basics of MATLAB and make it easier to tackle similar problems in the future.
Link to MATLAB Onramp - https://matlabacademy.mathworks.com/details/matlab-onramp/gettingstarted
To address your problem of adding plot title and axis labels to the figure, you can use the MATLAB functions “xlabel”, “ylabel” and “title”. Here’s a quick example:
xlabel('Energy (keV)')
ylabel('Counts')
title('Energy vs Counts')
For adding another plot to an existing plot, you can use the “hold” statement as shown here:
UnzippedPoint1 = unzip('point1.zip')
A2 = readmatrix(UnzippedPoint1{1}, 'FileType', 'text');
x2 = A2(:,1);
y2 = A2(:,2);
hold on
plot(x2, y2)
hold off
legend('Dataset 1', 'Dataset 2')
Here’s the final output utilizing the 2 code snippets above:
If you wish to have the data as 2 separate subplots in the same window, you may use the “subplot” function linked at the bottom of this answer.
Here are some documentation links to learn more about functions used:
Hope this helps!
Star Strider
Star Strider 2024-8-8
@mohd akmal masud — As always, my pleasure!
To add axis labels to a 2D plot, use xlabel and ylabel, and to add a title, use title. (There are similar functions for 3D plots and groups of plots such as those produced by the tiledlayout function.)

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