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Steven Lord


MathWorks

3,487 2002 年以降の合計貢献数

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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How to select a value in a matrix based on a pair of vectors?
If you don't want to use a loop like Jeremy Marcyoniak suggested, you could convert your subscripts into linear indices using su...

約9時間 前 | 1

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Different complex log values displayed for a "single" input
Which release of MATLAB are you using? If you're using a release prior to release R2017b, try upgrading to that release or later...

約10時間 前 | 0

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matlab.graphics.illustration.Legend/set
The legend object does not have a property named Blue. If you're trying to change the colors of the objects listed in the legen...

約10時間 前 | 0

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can some one solved this question, it can't show the variable y
for n=1:x This looks suspicious. You loaded the variable x from a file named X_In.dat. Is x scalar? From the fact that you're c...

約11時間 前 | 0

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Can this line in a code be written in a smarter way?
I agree with John's assessment. Unless dC, b, and C are terms of art for chemical diffusion problems I'd use more descriptive va...

約12時間 前 | 0

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I am unable to find MATLAB R2017b and beyond for 32 bit systems. Where can i find them?
The last release of MATLAB that was supported on a 32-bit Windows OS was release R2015b as stated in the Previous Releases: Syst...

1日 前 | 0

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Faster way to resample a timeseries?
If you're using a release where timetable is available, I recommend storing your data in a timetable and using the retime functi...

1日 前 | 0

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How to define a global variable
While you can use global variables for this type of sharing, we recommend you use other techniques instead. See the "Share Data ...

1日 前 | 0

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Run matlab commands from a bash script
If you're using release R2019a or later, use the -batch startup option. If you're using an earlier release, use the -r startup ...

1日 前 | 0

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How can I control node label font size of a graph or digraph object?
You can customize node and edge labels with font properties, including NodeFontSize and EdgeFontSize, as of release R2018b.

1日 前 | 0

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How to revert run section keyboard shortcut behaviour change in MATLAB_R2019b
Check your Preferences (the icon is on the Environment section of the Home tab of the Toolstrip.) In the MATLAB section, select ...

1日 前 | 0

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Why edit copy of figure is inactive?
It doesn't look like you've selected anything in the figure to copy. Click the arrow icon in the figure's toolbar, select (say) ...

1日 前 | 0

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How to save function to calculate in an equation?
You can't add a function handle and a number. You can add the value you receive from evaluating a function handle and a number....

2日 前 | 0

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List of all matlat functions
There is a list of all the documented functions in the documentation. You can select a specific toolbox to limit the list to jus...

2日 前 | 0

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print stopped working in MatLab 2017b, possibly after Windows 10 update. Is there a fix?.
Does plotPath end with the file separator character returned by filesep? If not, check one directory up to see if there's a file...

2日 前 | 0

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Undefined operator '>' for input arguments of type 'function_handle'. Error in simple_nlr (line 24) while err > tol
You don't want to ask if the function handle is greater than a certain value. You want to ask if the result of evaluating the f...

4日 前 | 0

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Deep Learning Speech Recognition Example, Problem with designAuditoryFilterBank
If you look at the end of the documentation page for the designAuditoryFilterBank function it says that this function was introd...

4日 前 | 0

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When using polarplot, why does the argument come before the modulus?
The polarplot function is using the same convention as the older polar function, with theta as the first input argument and rho ...

4日 前 | 0

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timerange in a loop
Yes. Build datetime objects using the three-input syntax and use them to construct a timerange. I left off one of the semicolons...

4日 前 | 1

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Ploting problems with handle, maybe I have changes in this function.
Adam Danz and Star Strider have correctly pointed out that you probably don't want to use the question mark operator. But there'...

4日 前 | 0

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Getting rid of a for loop
You're looking for a local minimum in your vector input? [I would choose a different name, BTW, since input already has a meanin...

4日 前 | 0

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Help with using summation functions in matlab (Trying to create an atomic scatter function)
There are no symbolic variables in the function you posted, so symsum isn't the right tool for this job. Instead, just use sum. ...

5日 前 | 0

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Why do my axis change dimensioins?
What happens, according to the documentation, when you call surf with one input argument? What does surf use for the X and Y coo...

5日 前 | 0

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Array Indices(dont understannd the problem the value is a basic exponantial function)
idss is a variable with only one element. The expression idss(1-exp((x))) is an attempt to access one or more elements from that...

5日 前 | 0

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Where is Solution 1-5LI90A?
That is an old number from before MathWorks Support Team answers were posted to MATLAB Answers. I believe it's referring to this...

5日 前 | 0

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Wildcard or multiple conditions on switch/case?
I'm not sure how switch / case fits into this. You don't need it (unless this is part of a homework assignment and it requires y...

5日 前 | 1

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I don't have function "deeplabv3plusLayer" in Matlab 2019a
At the end of its documentation page, the documentation states that it was introduced in release R2019b. You're using the releas...

5日 前 | 1

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Where does the getappdata() function save its data?
Are you asking where (in memory, on disk, etc.) saveappdata stores the data that you retrieve with getappdata, so you can retrie...

5日 前 | 0

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R2018a contained wlan example code, but none of it is in R2019b. What happened to all the wlan example code?
I believe the examples were reorganized at some point in the last few releases so that helper functions (which are specific to t...

5日 前 | 0

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