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Steven Lord

MathWorks

Last seen: Today |  2002 年からアクティブ

Followers: 7   Following: 0

I joined The MathWorks in the Technical Support department during the summer of 2001 and transferred into the Quality Engineering department in March of 2004. I now work qualifying the core MATLAB numerical functions (PLUS, MINUS, LU, FFT, ODE45, etc.) Professional Interests: mathematics, MATLAB For assistance with MATLAB question please post to MATLAB Answers or contact Technical Support using the Contact Us link in the upper-right corner of the page instead of contacting me directly.

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Matlab 2024b won't open on Windows 11
Scanning through the Bug Reports for MATLAB release R2024b, I found two that might cause MATLAB to not be able to open. See Bug ...

2日 前 | 0

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operator '==' not supported for operands of type 'cell'
Another possibility for the original question would be to create a pivot table or to use groupcounts or other grouping functions...

2日 前 | 0

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MATLAB Incorrect number or types of inputs or outputs for function solve.
Let's choose a small value for n (since the input command cannot run on MATLAB Answers) and see what you're trying to pass into ...

7日 前 | 0

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Numerical integration of N by 1 matrics
See the trapz and cumtrapz functions.

9日 前 | 0

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I am trying to recreate a plot from a literature review. It is a scatter graph but the axis are labels more than specific numbers
I'm not certain what the significance of the unlabeled horizontal lines are, but you can create a scatter plot with categorical ...

10日 前 | 0

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Is it better to use tic/toc or a timer function for tracking time?
If you want to retrieve the current time, use: dt = datetime('now') To retrieve it as text data: s = string(dt) Depending on...

10日 前 | 0

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isnan to conver nan to zero in a table
Let's make a sample table with some NaN values and a non-numeric variable. A = magic(4); A(randperm(numel(A), 3)) = NaN; T = ...

10日 前 | 1

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Why are my licenses not linking to my account
I assume you are one of your company's license administrators? If so please contact Customer Service directly using this link an...

15日 前 | 0

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How to convert python scipt to matlab using any matlan converter or else
I would see if the "Call Python from MATLAB" section linked from this documentation page provides the functionality you need.

15日 前 | 1

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Find closest value in array
As of release R2021b, you don't need to use abs on the input to the min function. Use the 'ComparisonMethod' option to tell MATL...

16日 前 | 1

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remove non-unique columns even if the sign has changed
Make a copy of newca1, let's call it M. Multiply each column of M whose first element is negative by -1. This way if you think o...

16日 前 | 0

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Error using Matlab's publish function to create a pdf
I tried searching our internal bug database but I didn't find anything that looked exactly like this issue. I've reached out to ...

17日 前 | 0

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Request for Cancellation of Full Toolbox Tutorial and Reversion to Original Trial State
Please contact Customer Service directly using this link with this request.

17日 前 | 1

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Clicking on hyperlink for an "example" on MATLAB command line help changes my current directory
Do you want to read the example and potentially run some or all of it? I think that's a pretty common workflow for the examples....

19日 前 | 0

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How does code sharing work in MATLAB?
Some of the functionality listed in the Software Development Tools category in the MATLAB documentation was not available in 202...

22日 前 | 1

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cant get object's method to return multiple outputs
From the error message I suspect the class overloads indexing, either by overloading subsref or using one or more of the indexin...

22日 前 | 0

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defining upper and lower limits of a matrix
If you were using release R2024a or later (or if upgrading is an option) you could use the clip function. M = magic(5) M2 = cl...

23日 前 | 1

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sprintf
This wasn't an option when the question was originally asked, but in more recent releases I recommend storing the names as a str...

23日 前 | 0

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keep exact position of subplot axes
To clarify, when you say "position" do you mean the location of the subplot axes in the figure window, the limits of the axes (s...

23日 前 | 0

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Trouble parsing ISO8601 date strings into datetime
Looking at the description of the Format property on the documentation page for the datetime function I think you want ZZZZZ or ...

28日 前 | 2

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Are namespaces packages?
It is a new thing. namespaces The + directory hierarchy that used to be called packages are now called namespaces, so using an...

29日 前 | 1

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How to find the RMSE?
If you're using release R2022b or later, use the rmse function on your data.

約1ヶ月 前 | 0

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Converting product into individual entries
If you have the individual terms and their replication factors already, see the repelem function. If you don't you may need to u...

約1ヶ月 前 | 0

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How do I create a game update in a while loop
numPasses = 0; expectedDuration = seconds(1/30); while numPasses < 5 dt = datetime('now'); n = 0; while datetime('now')-dt ...

約1ヶ月 前 | 0

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save() seems to be saving objects that should be destroyed, causing errors when the resulting .mat file is loaded
txs = txsite("AntennaHeight",1.5, ... "Latitude", 38.9899587, "Longitude", -76.9353889, ... "Transmitt...

約1ヶ月 前 | 0

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Optional Arguments in Function as Struct Input
Use the namedargs2cell function.

約1ヶ月 前 | 0

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How do I include a command line in my app when using MATLAB Compiler?
No, you cannot include the Command Window in your deployed application. Since you mention App Designer and "change directories",...

約1ヶ月 前 | 0

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how can i open .lod extension and .iqd extension file in matlab?
That depends. What do those files represent? Looking at a file extension database a file with the extension .lod could be from: ...

約1ヶ月 前 | 0

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Loading user-defined classes from .mat files absent the classdef
At one time, if I had a .mat file with a user-defined class variable, but lacked the classdef file, loading the .mat file would ...

約1ヶ月 前 | 0

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where can I find the code?
Go to the webpage or documentation page for the example that calls that function. Use the button to open that example inside MAT...

約2ヶ月 前 | 0

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