Is there a way of saving the currently running script in Matlab? I have a script which automatically takes a backup of a set of scripts although if I have changed the current script then the saved version will be out of date.
Perhaps its possible to call some java?
Thanks
Somewhere on Yair Altman's site (see link in my other answer) he also referred to a blog entry about editorservices, which was introduced with MATLAB R2009b.
editorservices.getActive().save
should do what you want.
Okay, all I write here I learned from undocumentedmatlab.com by Yair Altman, in particular by looking into his EditorMacro.m... great stuff!
I'm assuming that Itamar Katz understood you correctly and that you are running unsaved code from the editor by using "Evaluate Cell" or "Evaluate Selection"; you want your code to realize that it is not saved and save the version currently displayed in the editor to some other location.
I have not found a way to save the file directly to the original location, but at least I have found a way to access the current text. You can then use fprintf to save it to wherever you want. I have tested this in Matlab 7.11 (R2010b); if you have a different version you'd need to dig through EditorMacro.m to find the correct code for Matlab 6.
if com.mathworks.mlservices.MLEditorServices.getEditorApplication.getActiveEditor.isDirty
thisdocument=com.mathworks.mlservices.MLEditorServices.getEditorApplication.getActiveEditor.getDocument;
thisdocument_text=char(thisdocument.getText(0,thisdocument.getLength));
fid = fopen('backupfile.m','w');
fprintf(fid, '%s', thisdocument_text);
fclose(fid);
else
% saved file is unmodified in editor - no need to play tricks...
...
end
So the if-condition checks if the currently active editor window contains a file which is not saved ("dirty"); if it is, we need to retrieve the current version of the code (into variable thisdocument_text) and save this string to some file.
Does this help?
Related
I want to build a simple script that may be useful for others as well, but I have only very basic programming knowledge and can't do it myself without learning how to write powershell scripts from scratch.
What this script is supposed to do is, open an INI file (really just a txt), look for a variable with an assigned value and replace that value from a txt hosted on GitHub, save and then run a program.
This is for the tracker list of qBittorrent, since that feature still hasn't been implemented and the only other script that I could find that does this is for linux and mac, there seem to be none for windows.
The basic idea is this:
get-content "c:\users\[user]\appdata\roaming\qbittorrent\qbittorrent.ini"
# This is where pseudo code starts
get file from "[github-link.txt]"
save file to cache # keeping it is useless as it gets updated daily
find variable "Session\AdditionalTrackers=" in qbittorrent.ini
replace value of variable with content of cached file # this is what I struggle with most when looking for example code. Everything I could find specified the exact string that needed replacing, which in this case is quite long and may change with every update of the file.
overwrite original file
launch program qbittorrent.exe
end script
Conveniently or most likely deliberately all (most) of the tracker lists on GitHub are already formatted in a way that they can be directly pasted into the file without having to worry about formatting. Example.
I can totally understand if nobody wants to do the work, but I would greatly appreciate it and possibly others that are looking for a stopgap for the lacking feature.
If this already exists, go ahead and call me an idiot and while you're at it drop a link ;)
I just found a little tool called Power Automate and it pretty much does what I was looking for. It's not quite as elegant as a single click script but it does the job. Sadly I can't share the "flow" I built because, well, there is no option for it - thanks Microsoft. So, I'll try my best to write it out.
Not quite a "solution" but pretty to close to it.
Here is the "flow":
get file from web // from github for example
read text from file // read downloaded .txt file
read text from file // read qBittorrent.ini
crop text // crop between flags in qBittorrent.ini use "Session\AdditionalTrackers=" as start and "Session\GlobalMaxRatio=" as end and save to cropVar2
crop text // crop before flag use "Session\AdditionalTrackers=" as flag and save to cropVar1
crop text // crop after flag use cropVar2 as flag and save to cropVar3
replace text // replace cropVar2 with content of downloaded file and save to cropVar2
write text to file // write cropVar1,cropVar2,cropVar3
end flow
Keep in mind that any changes to the qBittorrent.ini may change the order of the entries. Which means you have to check if it's still correct after every update and after every change you make in the options. This is a massive cludge after all...
You can input fail saves so that you won't break anything if the order changed.
I have found the publish menu in Matlab. I would like to reference it in my code so as to save output ( without the commands) and all figures. I am using only figure1 throughout. I want to save in two formats pdf and doc.
Where do I put the publish command at the beginning or at the end of my code or putting it another way should I execute the publish commands at beginning? Matlab software keeps telling me it cannot find the file? Further I want to include all graphs. I have added snapnow after each plot.
I have used the following code both at beginning and end of my program. I want to include all graphs but no input commands only output. Options can be seen on edit publishing options window. I tried to start simple.
Code:
publish('c:\data\output.doc')
publish('c:\data\output.doc','doc')
Error message
Cannot find "c:\data\output.doc".
Thank you.
MM
Is there a way to fold sections of codes in Live Scripts as there is in regular scripts?
I have tried to look for it in the preferences and enabled all kind of foldings, but none of them relate to the Live Scripts. I would expect it to work since the notation of %% is similar in both types of scripts.
Any idea how to enable/workaround this?
No, I don't believe you can do this. Seems like a nice thing to want to do, though, so I would enter an enhancement request with MathWorks. I have no suggestion for a workaround, I'm afraid.
I know this is old but in case anyone else is wondering, below are the workarounds suggested to me by tech support when I submitted an enhancement request. I encourage the reader to add their vote by submitting a request if they still want to see this feature added to the live editor.
Convert to M file and "publish" with 'showcode' as false. First, convert the Live Script into an M file. You can do this interactively
by clicking "Save As" and then choosing the "M" file option in the
File Type section or you can do it programmatically as follows:
>> matlab.internal.liveeditor.openAndConvert('live_script_to_be_converted.mlx',
'output_script.m');
Once you have the converted M file which has all the section breaks
and formatting, you can use the "publish" function as follows from the
MATLAB Command Window:
>> options.format = 'pdf';
>> options.showCode = false;
>> publish('output_script.m',options)
This will publish the PDF file to a sub-directory called "html" inside
the current working directory.
Here is a documentation link for the "publish" function and
specifically, the "showCode" option:
https://www.mathworks.com/help/matlab/ref/publish.html#input_argument_namevalue_d119e823467
Please note, when saving the MLX file as M file and then publishing,
it does not convert the LaTeX expressions to something readable. It
also automatically inserts a table of contents at the beginning.
Encapsulate the code in another script or function. An alternate approach would be for you to encapsulate the code you want to hide in
another script or function and call it from your published Live
Script. For example, something like:
>> %% Now plot a figure
>> functionThatPlotsAFigure
In this case, instead of publishing all the plotting code, only the
call to the plotting function would be published.
Publish the Live Script as an HTML and then modify the HTML page to hide the code sections and then publish it as a PDF.
The options stated above are simply workarounds as we do not currently have this functionality. A request has been submitted to our developers to add in this feature and they are considering this for future releases of MATLAB. We appreciate your feedback as we constantly strive to improve our products.
I've downloaded a data set that I am interested in. However, it is in .mat format and I do not have access to Matlab.
I've done some googling and it says I can open it in SciLab.
I tried a few things, but I haven't found any good tutorials on this.
I did
fd = matfile_open("file.mat")
matfile_listvar(fd)
and that prints out the filename without the extension. I tried
var1 = matfile_varreadnext(fd)
and that just gives me "var1 = "
I don't really know how the data is organized. The repository described the data it contains, but not how it is organized.
So, my question is, what am I doing wrong in extracting/viewing this data? I'm not committed to SciLab, if there is a better tool for this I am open to that.
One options is to use Octave, which can read .mat files and run most Matlab .m files. Octave is open source with binaries available for Linux, Mac, and Windows. Inside of Octave you can load the file using:
load file
See Octave's manual section 14.1.3 Simple File I/O for more details.
In Scilab:
loadmatfile('file.mat');
(Source)
I had this same interest a few years back. I used this question as a guide. It uses Python and SciPy. There are options for NumPy and hd5f as well. Another option is to write your own reader for the .mat format in whatever language you need. Here is the link to the mat file format definition.
I want to log the running of my program, specifically the running time of each part. At this moment I print to the screen using disp. Is there a way so that some of the things I print would also be printed into a text file?
You can use the DIARY command, that captures everything from the command window.
There are other solutions to this problem where you write to one or more logfiles opened when your program is running. This provides a permanent record without polluting your work space or diary. It also works well if you compile your MATLAB application.
Jan Simon has a nice solution at MATLAB Central which uses a persistant file id so the log to file mechanism can be used again and again throughout an application with many functions without passing the file id about.
Others at MATLAB Central (here and here) have developed class based solutions with more features.
Also, fprintf.