I've had a startup script which sets my default settings as well as defines my working directory and adds all relevant paths. In this script, there is the command
addpath(genpath(pwd))
which simply adds all of the subfolders within my current directory.
Recently I got a new SSD and tried to move most of my non-program files over to it. Both drives work fine and are able to communicate smoothly. However, now I notice that if I try to call the command twice, the first command executes in less than a second whereas the second command continues to execute (20+ minutes and still running).
I am fairly certain I did not have this problem before and it occurs if a single file in the addpath is already on MATLABPATH. Furthermore, adding the files to the permanent MATLABPATH and restarting MATLAB also results in a soft error (runs forever without any actual error). This error persists for paths on both drives but the only change is that I got a new drive.
Edit: It appears to be getting stuck on line 94 of "addpath"
path(p, mp);
I am using Windows 10 on MATLAB 2017b.
Thank you for your help
Related
I'm a Python/programming novice and this is probably an novice mistake, but I've scoured the internet for answers and have found none! I'm learning on a Rosalind module that's about opening data files. http://rosalind.info/problems/ini5/ I'm pretty sure I understand everything clearly, so I'm frustrated about my inability to do this simple task.
I'm using Python 3.6.2 and IDLE. The assignment is to simply open a .txt file and read a few lines.
I downloaded the .txt file to my working directory. Then, I opened up IDLE Shell and made sure I was in the right working directory (using ls & cd). I then opened a new IDLE .py file and wrote a script:
f = open('filename.txt', 'r')
f.readlines()[2]
I saved the script as p5.py. Then, I tried to run the script by calling F5. In the Shell, I got this message:
================ RESTART: /Users/liv/Desktop/Rosalind/p5.py =================
Is that an error? I think it's just a message from IDLE that IDLE has opened p5.py. Therein lies my problem, because now I have the wrong file open.
I started realizing that when I used the Shell and called it to print, and it came back with an empty string.
What am I doing wrong?? How do I get IDLE to open the filename.txt file? ...not the .py file.
The RESTART line means that IDLE has sent p5.py to Python to be run, which is exactly what you want and what you asked. Python should have then opened the text file, read it, retrieved the 3rd line, and stopped. Since p5.py has no output statements and does not raise any exceptions, you will not see anything. If you change the 2nd line to
print('line is ', f.readlines()[2])
then you should see something.
I am attempting to use the SVN_Load_Dirs.PL script file (https://svn.apache.org/repos/asf/subversion/trunk/contrib/client-side/svn_load_dirs/) to attempt to merge a platform drop.
However, I can't get the --glob_ignores flag to behave as I'd expect, and I know so little perl that I can't dig into the script to understand why. The format I am using is:
--glob_ignores=*.jazzignore
Where I want to ignore all .jazzignore files (although I am fine with anything with "jazzignore" in either the extension or name being ignored. I've looked for examples but can't find any actual usage of this flag anywhere. What I am looking for is a way to ignore all .jazzignore files and a few entire directories (like jazz5 for an example)
I assumed the flag would then be --glob_ignores="*.jazzignore *.jazz5" but that doesn't appear to be working.
It turns out that the script was failing silently because I was running it from a windows cmd (and therefore never getting to the flag option). Apparently there are some issues running it this way and it was designed to be run from a linux command line. After switching it works perfectly.
I got a problem when executing batch file commands through matlab. This batch file includes commands to run simulations in Adams. When I execute the batch file directly from DOS window, it works well. But if I use matlab to execute it (using command dos()), it gives error saying 'cannot check out the license for Adams'.
This confuses me: if the license is incorrect, it should not work no matter I execute the batch file directly in DOS or ask MATLAB to execute it. I also tried to execute other DOS commands through matlab using dos() and it worked well.
Does anyone know what the problem may be?
Such issues are commonly caused by some environment variables being changed or cleared by MATLAB. I have very similar experience on Linux and Mac OS X, where this causes havoc when using system or unix.
In Unix-like systems, MATLAB is started from a shell script where all of this happens. So you can either incorporate missing variables there or in the .matlab7rc.sh in your home directory (the latter is preserved when you upgrade MATLAB and it is much easier to use). I won't go into all the Unix details here.
An alternative workaround is to explicitly set those variables when you issue a system command (e.g. system('export variable=value ; ...')). It is quite a bit of work, but you can then use that MATLAB code on different computers with ease.
On Windows, I'm not completely sure about the exact location of the corresponding files (and whether MATLAB starts in quite a similar way as on Unix). But if they exist, you can probably find it in the MATLAB documentation.
Anyhow, the alternative fix should work here as well.
First you need to diagnose which system variables you need (likely a PATH or anything that has a name related to Adams).
To do so in Windows, run set from the Windows command prompt (cmd.exe) and from within MATLAB. Whatever differs in the output is a possible suspect for your problem.
To inspect just a single variable, you can use the command echo %variablename%.
I will assume that you have found that the suspect environment variable is missing and should be set to value.
The workaround fix is then to run your command in MATLAB as system('set suspect=value & ...') where you replace ... with your original command.
I am trying to start Matlab and run a script scheduled at a specific time using the windows Task Scheduler.
If I use a scheduled task I can see Matlab starting, but this last fails to load the script and returns me the error below
??? Unexpected Matlab operator.
Do you know what it is and why?
I am using the following syntax
c:\app\matlab\bin\matlab.exe -r c:\MyURL\ScriptFile.m
If I load the script manually and run it it tells me that the file is not in the path so give ms a choice between
Change Current Directory
Add Folder to the Path
Either choices are fine and the script runs fine.
Matlab is starting in its main directory and -r requires your function to be in quotation marks, thats why you get the error.
And you need to change to your workspace first, the syntax is as follows:
matlab -sd pathToYourWorkspace -r "function(parameters)"
Maybe you also want to avoid the complete loading of the whole Matlab working environment, so add at the end:
-nodesktop -nosplash
If you run your task sheduled, are you doing it multiple times? Are you aware that every function call like above opens a new instance of Matlab? This question may be helpful then.
From the comments: of course you could just use the command run to call a script wherever it is.
"run('c:\MyURL\ScriptFile.m')" is an example for "functionName(YourArgs)"
as run is a function and the string 'c:\MyURL\ScriptFile.m' its argument. In this case it is usually not necessary to change the workspace before.
The files I would like to run are found here:
http://www.mathworks.co.uk/matlabcentral/fileexchange/12552-multicanonical-monte-carlo-scheme-for-finding-rare-growth-factors/content/mcmc2.m
it consists of 3 files, one of which is called a driver.
I have tried running each individual one in Matlab and each one gets an error, I think this is because I need to run them all simultaneously or something?
At the beginning of the driver script it says "This is the driver script to be run from the command line. Also requires functions mcmc1 and mcmc2". Where mcmc1 and mcmc2 are the other two files I tried running it in command line but I kept getting error messages..
Any idea how I get these files to run?
You should just be able to run gf_mmc_driver from the command line in Matlab. The mcmc1.m and mcmc2.m files need to be in your matlab path, but do not need to be called directly.
However, I do notice in the driver file the following comment:
% Telling the Distributed Computing Toolbox to complete one job with
% 'numberchain' tasks. Each task is comprised of running a MCMC
% for the burnin time (mcmc1.m) with a different initial matrix.
Do you have the Distributed Computing Toolbox? The driver file appears to require it.