How to execute and run a external program in matlab?

2019 6 4
2 个回答
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更新时间：2025 3 4
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Hi everyone,
I'm trying to exexute an external program in matlab, I used
!ISLab2000IWS 1-INP.in2 (where ISLab2000IWS is the software, and 1-INP.in2 is the input file I want to run)
But it only opens the software window and load the input for me, it's not running the analysis. The window is shown below. The 'Run Analyze' button is under the 'Tools', I was wondering, how can I make it run automaticlly? Really appreciate it.
Capture.JPG

11 个评论
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per isakson
per isakson 2019-6-4
What happens if you enter
ISLab2000IWS 1-INP.in2
at the Windows command prompt?
Qianyun Zhang
Qianyun Zhang 2019-6-4
I just tried, it didn't work.
ISLab2000IWS 1-INP.in2
Undefined function or variable 'ISLab2000IWS'.
per isakson
per isakson 2019-6-4
Where is the program, ISLab2000IWS , installed?
Qianyun Zhang
Qianyun Zhang 2019-6-4
yes, it's in the same folder as my input file
per isakson
per isakson 2019-6-4
Make that folder the current folder and try
ISLab2000IWS 1-INP.in2
again.
Qianyun Zhang
Qianyun Zhang 2019-6-4
Yes, it is the current folder. But didn't work :(
Walter Roberson
Walter Roberson 2019-6-4
Undefined function or variable is a message you would get from MATLAB. per asked you to run
ISLab2000IWS 1-INP.in2
at the MS Windows command prompt, not the MATLAB command prompt.
I am having difficulty finding documentation on ISLAB2000, Lev Khazanovich et al . It clearly exists, but I cannot seem to locate a distribution or documentation point for it.
Qianyun Zhang
Qianyun Zhang 2019-6-5
I just run the ISLab2000IWS 1-INP.in2 in Windows conmmand prompt, it pump up with the same as what I mentioned in my question. It opened the software and file, but it didn't actually run it. Thanks
Walter Roberson
Walter Roberson 2019-6-5
As we do not have documentation on that program, all we can suggest is that you could use Java Robot class.
per isakson
per isakson 2019-6-5
"with the same [...] but it didn't actually run it"
  • There is no reason to expect a different behavior when invoked from Matlab than from the MsWindows prompt.
  • Look for "Command Line Commands" or similar in the documentation of ISLab2000IWS

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Steven Lord
Steven Lord 2019-6-5

1 个投票

Agreeing with what others have said, if the external software doesn't provide a programmatic way to run it's likely to be difficult or impossible to automate its execution.
You could use the Java Robot class as Walter suggested to try to automatically click on the buttons, but figuring out the right place on screen to click could be challenging.
You could ask the authors of that external software if there is a programmatic interface as per isakson suggested.
Or depending on what you're trying to do, you may be able to use a different product to perform your analysis. A quick Google search found that this is likely a finite element analysis program for pavement analysis. While it doesn't look like we have an example specifically for pavement analysis in the list of Partial Differential Equation Toolbox examples you might want to skim the list to see if there are any that look like they might be adaptable to the type of analysis you want to perform.

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Vanitha
Vanitha 2025-3-4

0 个投票

% MATLAB program to simulate and detect gravitational waves from binary neutron stars

clc; clear; close all;

% Constants g = 6.67430e-11; % Gravitational constant (m^3/kg/s^2) c = 3e8; % Speed of light (m/s) m1 = 1.4 * 1.989e30; % Mass of first neutron star (kg) m2 = 1.4 * 1.989e30; % Mass of second neutron star (kg) d = 1e22; % Distance from Earth (m)

% Time vector t = linspace(0, 1, 1000); % Time in seconds

% Chirp mass M = ((m1*m2)^(3/5)) / ((m1 + m2)^(1/5));

% Gravitational wave frequency (simplified approximation) freq = (1/pi) * ((g * M)^(5/8)) / (c^(3/8) * (t + 1e-3).^(3/8));

% Generate gravitational wave signal h = (4 * g * M) / (d * c^2) .* cos(2 * pi * freq .* t);

% Add noise to simulate real detector data noise = 0.1 * randn(size(t)); detected_signal = h + noise;

% Plot the waveform figure; plot(t, detected_signal, 'b'); hold on; plot(t, h, 'r', 'LineWidth', 1.5); hold off; legend('Noisy Signal', 'Pure Gravitational Wave'); xlabel('Time (s)'); ylabel('Strain'); title('Simulated Gravitational Wave Detection'); grid on;

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