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How have you tweaked the MATLAB environment to better suit your needs? One tweak per answer.
I run "format compact" to remove all those frustrating blank lines spacing out my output. Oh so simple, but makes it so much nicer to me.
I use a function idetitle() that can change the window title of the Matlab GUI itself. Useful in a development environment where I'm running several Matlab processes, possible on different branches of source code or model runs. Sometimes I'll put the PID in the window title to make it easy to find in Process Explorer for monitoring resource usage.
function idetitle(Title)
%IDETITLE Set Window title of the Matlab IDE
%
% Examples:
% idetitle('Matlab - Foo model')
% idetitle(sprintf('Matlab - some big model - #%d', feature('getpid')))
win = appwin();
if ~isempty(win)
win.setTitle(Title);
end
function out = appwin()
%APPWIN Get main application window
wins = java.awt.Window.getOwnerlessWindows();
for i = 1:numel(wins)
if isa(wins(i), 'com.mathworks.mde.desk.MLMainFrame')
out = wins(i);
return
end
end
out = [];
I changed the default font in the MATLAB editor to 10 point ProFont (which can be obtained here) so I could write code for long periods of time without giving myself a headache from straining my eyes.
I run Matlab with the options -nodesktop -nojvm. That way it just sits in a terminal out of the way, and I can use my favourite text editor to my heart's content.
You do miss out of some killer features this way though.
I set the number of lines in the command window scroll buffer to the maximum (25,000). This doesn't seem to noticeably affect performance and allows me to display a large amount of data/results.
I use a startup.m file (sits in the local MATLAB path) to make sure that I have the settings I want whenever I start up MATLAB. This includes such things as formatting the REPL and plot parameters.
I set the Command Window output numeric format to long g.
I implemented analogues of xlim and ylim: xlim_global([xmin xmax]) and ylim_global([ymin ymax]), which sets the axes' limits the same for every subplot in the figure.
I invert colors to have a black backgroud, easier on the eyes.
(Alt+Shift+PrintScreen on Windows, you can configure away the huge icons)
I keep a diary for each session (possibly multiple diary files per day) to recall all commands executed. This is controlled by a startup.m file that checks for previous diary files from that day.
I wrote a small function called fig.m to call up figure windows with names rather than numbers and display the name in the status bar.
Funnily enough, there are two or three identically named files that do exactly the same thing on the file exchange.
I have functions to 1) save the current figure locations and sizes on the screen, and 2) and one to load such configuration. It's very useful e.g. when monitoring data-heavy simulations.
I set shortcuts for
open current directory
up 1 folder
an action to do 'close all; clear all; clc;'
Ref:
http://www.mathworks.com/matlabcentral/fileexchange/19097-custom-panzoom-icons
send the outputs to your email esp when the running is long
http://www.mathworks.com/matlabcentral/fileexchange/29183-sending-reports-and-timestamped-file-by-emailing
create a result collector for archiving and sending
http://www.mathworks.com/matlabcentral/fileexchange/29255-track-collect-and-tar-inputs-and-outputs
a patch to line up the file within a directory in proper order
http://www.mathworks.com/matlabcentral/fileexchange/29033-file-ordering-patch-utility-for-matlab
Related
In a live script in matlab, I plot multiple figures, and I use this code to enumerate the figures:
FigureQuantity=1
plot(data_1)
title('Figure '+string(FigureQuantity))
Then on another code section I do it again
FigureQuantity=FigureQuantity+1
plot(data_n)
title('Figure '+string(FigureQuantity))
The problem is that if I run the last code section again, FigureQuantity gets updated and the enumeration of figures gets broken.
There is any way to get the number of tokens ordered by his code appearance on the live script? (independent of how many times the section code is run)
I would like to keep tokens so I can mix inserted images and plots. And I want to export the document as PDF (not to show plots in an application or an independent window).
What I need is something like MS Word enumeration of figures and tables.
I found this Matlab documentation: Number Section Headings, Table Titles, and Figure Captions Programmatically, but it appears to be used for creation of MS Word or HTML documents, and not to enumerate images on Matlab live scripts.
I do not understand how to use it, or if that is his purpose on Matlab.
I'm assuming you're updating the data_n variable live as well; otherwise, if you're defining these variables manually then not doing so for the figure variables isn't really the solution I think you're looking for.
Why not for-loop through the figure updates?
for FigureQuantity = 1:numberOfFigureQuantities
figure(FigureQuantity);
hold on;
plot(data_n(FigureQuantity))
title(strcat('Figure Number: ',num2str(FigureQuantity)));
end
The figure count corresponding to the FigureQuantity will index the appropriate figure and will update that figure if it already existed. This is the solution I think you're looking for; if not, please clarify.
I know it's possible to forward any output from a remote machine to a local one by using the X11 forwarding remote tunnelling, so that when you run a MATLAB command it will display all the graphical outputs back to the machine you've connected from.
My question is:
Is there any MATLAB command to just output the figures (e.g., plot,surf,etc.) without displaying any other graphical object (i.e., the main interface)?
In practice, I would like to interact with MATLAB by using the command line (as shown below) and forward back only the figures.
MATLAB cannot display figures without its own figure-GUI, so the answer to your question would be no.
However: there is a workaround: create an invisible figure using f=figure('visible', 'off'), then plot your data, and finally use saveas(f,filename,fileextention). Don't forget to close(f) your figure after saving, to free the RAM. You'll now have a figure in your file directory, which you can display using your favourite visualising tool, which might even be possible through a call to system, although I have never tested that.
This question already has answers here:
How can I program a GUI in MATLAB? [closed]
(4 answers)
Closed 6 years ago.
I wrote a code that: imports sequential files containing x- and y- columns, plots the data, fits the peaks using a 4-term gaussian, saves the plots as .png image files and finally exports all the variables into a table (called final). I want this program to be user friendly as non-programmers need to use it. Please let me know if it is possible. I would like to be directed towards the right path. As I do not know where to start.
There are thousands of resources on-line, but they are not specific. I would like to know if it is possible in my case to create a GUI, so I dont fish in an empty pond.
You might consider using "GUIDE" which is Matlab's GUI design environment. It's fairly easy to use. To start simply type:
guide
in the command window. There is a lot of documentation on how to make a gui with guide. I'd wager you could quickly come up with a gui that calls your script, or you could convert your script to a set of functions and call those from the gui.
http://www.mathworks.com/help/matlab/creating_guis/about-the-simple-guide-gui-example.html
I have some programs written in Matlab that I need to run several times for some reasons (debugging, testing with different input, etc...)
But, there are a lot's of graphs that are plotted by the programs and its various functions such that everytime I run the program, I have to wait for all the graphs to be displayed, which is very annoying and time consuming (especially when you are working with a small laptop).
After the program is executed, I close them with a close all.
So my question is:
Is there a way to disable all plots/figures/graphs in Matlab? either in the options, or by executing a certain code like disable plot and enable plot to ensure that no figures are being displayed.
I know that I can just browse the code and comment the plotting part, but I don't want to forget to uncomment.
Try some combination of the two commands:
set(gcf,'Visible','off') % turns current figure "off"
set(0,'DefaultFigureVisible','off'); % all subsequent figures "off"
The second one, if you put it near the beginning of your program, might do the trick for you. Of course, it is still creating the plots, which might be undesirable for computation time and/or RAM issues.
This is a classic reason to avoid Matlab when one can. It fosters bad programming design. To solve this problem correctly, you should create something that lets you "flip a switch" at the highest level of your program and control whether plots show or do not show. Perhaps it even has gradations of the show/don't show option so you can select different types of plots that do/do not show depending on what diagnostics you are running.
Ideally, you'd want this "flip a switch" creation to be a class that has access to visibility and plot functions of other objects. But because interactive object-orientation is so cumbersome in Matlab, it's often not worth the effort to develop such a solution, and most people don't think about this design aspect from the outset of their project.
Matlab would encourage someone to solve this by making flag variables like "isPlotVisible" or something, and creating functions that always accept such flags. I agree this is a bad design.
You could run matlab from the command line with:
matlab -nojvm
but then you don't get the GUI at all. Alternatively, you could write a file 'plot.m':
function h = plot(varargin)
h = [];
end
which doesn't do anything. If this is in the working directory (or somewhere else near the top of the path), then plot will call your function instead of the 'real' plot. You'd need to do the same from any other graphing functions you call.
The closest way I know of 'turning off plotting' would be a folder of such functions that you can add to the path to disable plotting, and remove to enable.
The previous methods are fine, but an easy and good habit to take is to use a "on/off parameter". So basically, at the beginning of your code, you can add something like:
DisplayFigure = 1; %1 = display, 0 = no display
After that, add "if DisplayFigure == 1 ... end" for all your plotting related commands, where the commands should be inside the if statement (the ... above). Hence you won't even compute the plots, which will save you a lot of time and memory. You just have to change the value of the variable "DisplayFigure" to plot or not the figures.
I'm running a series of scripts that all import data from different matrix files. It seems that displaying the content of the matrix is taking a lot of time. Normally I would do "more on" and just cancel the display after the first page, but I am doing things automatically here, from the command-line version.
Is there a way to stop Matlab from displaying the content of variables when it loads them? Say, a non-verbose/daemon mode? I couldn't find a way to do it when I searched, but I'm sure there must be one.
Thanks in advance!
Found it! The answer is to add a semicolon (;) at the end of the line, for example:
m=importdata('matrix.txt');
This will prevent it from printing the contents of m.