Jim Hokanson

Duke University

Last seen: Today | Active since 2009

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How can I import live data from labchart into Matlab?
The Labchart server code I wrote can do this but it relies on Windows drivers. The streaming bit is also a bit messy because to ...

30 dagen ago | 0

Answered
How to fix table display/alignment in command window
It appears that the table display algorithm assumes monospaced fonts. Changing the "Dekstop Text Font" (Home tab => Preferences ...

30 dagen ago | 1

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Question

How to fix table display/alignment in command window
MATLAB seems to format printing of tables poorly on macs. Here's a simple example using 2023b on my M1 mac: dt = datetime('now...

ongeveer een maand ago | 1 answer | 0

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How can I import python libraries inside a python script that am calling from Matlab?
Was just working on some Python/MATLAB things and saw this question. The issue is that you are making a system call that is comp...

meer dan een jaar ago | 1

Question

error in prctile function?
I'm creating my own percentile function and wanted to compare it to the prctile function available in MATLAB. I am pretty sure ...

meer dan een jaar ago | 1 answer | 0

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enable context menu for specific cell or item in uitable or uilistbox in matlab
Here's a solution with left click. Couldn't get right to work. More info at linked StackOverflow page above. Code copied here: ...

ongeveer 2 jaar ago | 0

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Question

enable context menu for specific cell or item in uitable or uilistbox in matlab
This is a cross posting from: https://stackoverflow.com/questions/70468931/enable-context-menu-for-specific-cell-or-item-in-uit...

ongeveer 2 jaar ago | 2 answers | 0

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keep focus in command window
You could also create a function that does what you want. In response to Walter's answer, I don't want to always work at avoidin...

bijna 4 jaar ago | 0

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How to remove single quotes around the string
Since I stumbled across this when looking at ways of copying variables, specifically cell arrays of strings, from Matlab into Ex...

bijna 4 jaar ago | 1

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Hide/Disable 'File' menu in Matlab figure window
Here's what I needed: h = findall(gcf, 'Tag', 'figMenuFile') set(h,'visible','off') All the other menus appear to be tagged i...

bijna 4 jaar ago | 0

Answered
Error in fmincon: undefined getIpOptions
I had this problem and just reinstalled the optimizaton toolbox ...

meer dan 4 jaar ago | 3

Question

waiting for current folder viewer to expand
I'm writing some code to expand the current folder viewer and I've found that expanding the folders, equivalent to clicking on t...

meer dan 4 jaar ago | 0 answers | 0

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Answered
function signature for package function
So apparently there were two issues. First, these json files must be placed in the same folder that gets added to the path. So...

ongeveer 5 jaar ago | 1

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function signature for package function
Well I just hit "cancel" instead of "submit" so here's a short version :/ I can't get functionSignatures.json to work for the f...

ongeveer 5 jaar ago | 1 answer | 0

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trouble reading ordinal categorical variable with missing value using readtable
I am trying to read an Excel file that has an empty cell for a categorical ordered column. For example something like {0 5 [] 3 ...

meer dan 5 jaar ago | 1 answer | 0

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Answered
Refresh legend from the command line
I've found hiding and showing the legend works. ax = gca; %might be different ... legend(ax,'hide'); legend(ax,'show');

meer dan 5 jaar ago | 0

Question

error removing subplot listeners manager
After plotting some subplots I start to move around the axes (change position values). Normally this works fine but I'm running ...

meer dan 5 jaar ago | 0 answers | 0

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getpixelposition vs OuterPosition of figure
I'm getting different values from getpixelposition and the OuterPosition of the figure ... get(gcf,'OuterPosition') ans = ...

meer dan 5 jaar ago | 2 answers | 0

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thread safety of mx mex functions
Although I'm aware that mx mex functions are generally considered not to be thread safe, it is unclear to me if this applies to ...

meer dan 5 jaar ago | 1 answer | 0

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Answered
Deploying a standalone application to computer with no install privileges
I ended up switching to Octave for this project. Octave can be run without installation. The zip download is about 400 MB which ...

bijna 6 jaar ago | 1

Question

Deploying a standalone application to computer with no install privileges
I wrote a simple GUI which I was planning on placing in a standalone application to be run on a computer without Matlab. I inclu...

bijna 6 jaar ago | 2 answers | 0

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Answered
Best way to locate shared (.dylib) libraries used by MATLAB mex files on MacOS X
I've had some luck with the following command in the same directory as my mex file. install_name_tool -change /Users/jim/Do...

ongeveer 6 jaar ago | 2

Answered
queue addlistener events or place event on EDT
I found a different solution which appears to work nicely: <https://undocumentedmatlab.com/blog/matlab-and-the-event-dispatch-t...

ongeveer 6 jaar ago | 0

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Get start time of a daq session
I'm wondering if it is possible to get the time at which the DAQ starts so that I can keep track of other code events, relative ...

meer dan 6 jaar ago | 1 answer | 0

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is it possible to retrieve command window output of parallel worker
Presumably you could use this when run in the worker ... <https://www.mathworks.com/matlabcentral/fileexchange/31438-command-wi...

meer dan 6 jaar ago | 0

Answered
Error is a warning in parfeval function
So, it appears the issue was not with the worker but in the client. After some debugging I tried this instead: function han...

meer dan 6 jaar ago | 2

Question

Error is a warning in parfeval function
I have the following (pseudo) code and I'm getting the following warning in my command window (2017b Windows). function par...

meer dan 6 jaar ago | 1 answer | 1

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Question

is it possible to retrieve command window output of parallel worker
Is it possible to retrieve the command window output from a worker when using parfeval? Specifically I'd like to catch listener ...

meer dan 6 jaar ago | 2 answers | 0

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Question

Data transfer specifics for a queue
Documentation for parallel.pool.DataQueue and parallel.pool.PollableDataQueue says next to nothing about how data is transferred...

meer dan 6 jaar ago | 1 answer | 1

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Question

What is the difference between DataQueue and PollableDataQueue
What is the difference between parallel.pool.DataQueue and parallel.pool.PollableDataQueue. It seems the pollable queue is the s...

meer dan 6 jaar ago | 1 answer | 0

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Jim Hokanson

Duke University

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