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Steven Lord


MathWorks

3,194 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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Random assignments through the use of a MatLab programmed Calender
Since is the assignment problem, and that Wikipedia page suggests solving it as a linear program, one place to start would be th...

約10時間 前 | 0

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Combine numeric and character array to display to operator
Using a listdlg as Star Strider suggested would be my first thought. But if the files all have the exact same naming pattern ("f...

約16時間 前 | 1

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Out of memory. The likely cause is an infinite recursion within the program.
Your first call to Vout calls itself on this line: volume_out=Vout(t(n))*DT; %ft^3 That second call to Vout calls itself. Tha...

約17時間 前 | 0

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Mean value of two variables from an array with less than condition.
Geoff Hayes: as of release R2018b, as long as all the elements of x(1:end-1, 1) are positive integer values, it's valid ... but ...

約19時間 前 | 1

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Buying Matlab license by other company
Please send this question to the Sales department using the Contact Us button (the telephone icon) in the upper-right corner of ...

約19時間 前 | 0

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license number doesnt work
If you received this license number from your IT staff with instructions on how to install, I recommend contacting them for assi...

約19時間 前 | 0

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changing sequence in sequence
Concatenate the variables you want to consider in the sorting order into one matrix, with each variable a separate column. Call...

1日 前 | 0

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Monthly turnover where I need the sum
If all the entries in the Time variable in your table were valid date strings that datetime could understand, I would first conv...

1日 前 | 0

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Why do the fitting coefficients for polyfit change depending on the number of outputs?
See the third item in the Description section of the polyfit documentation page. That third output tells MATLAB to center and sc...

1日 前 | 0

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Is the Distributed Computing Toolbox finished?
Distributed Computing Toolbox was renamed Parallel Computing Toolbox in release R2008a and it is still called Parallel Computing...

1日 前 | 4

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How can I do graph matching?
It sounds like you're not working with a network graph object but with a series of images. If so something more along the lines ...

2日 前 | 0

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How to control graph layout
I don't believe any of the methods available in the layout function for graph and digraph objects will give you that exact confi...

2日 前 | 1

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Change the format of x axis in a Kernel density plot.
I suspect when you called semilogx as you said in your answer that probably should have been a comment you plotted on a linear a...

2日 前 | 0

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YAxis property of an Axes read-only, but XAxis and ZAxis are not.
I needed to write code that saved the properties of the axes handle and then removed the read-only properties from the structure...

2日 前 | 0

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Sort returns into quintiles rebalance monthly not enough input arguments
When you press the green triangle in the Editor (which I assume is what you mean when you said "when I press run") that attempts...

4日 前 | 0

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How to split a table based on date and hour
In addition to being able to specify 'day' as the newTimeStep input to retime you can specify a newTimes vector. Similarly, in g...

4日 前 | 0

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i have download RESNET50 file. how to install RESNET50 MLPKGINSTALL file.
If you're referring to this File Exchange submission, as the second and third paragraphs of the Overview section state: "Openin...

4日 前 | 1

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installed, but will not run on windows 10
I recommend contacting Technical Support using the Contact Us icon (the telephone) in the upper-right corner of this page and wo...

4日 前 | 1

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Can you program a figure to execute the same callback after each child's callback?
Are you setting the figure object's CurrentObject property back to the figure object itself because your callbacks query the Cur...

7日 前 | 0

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normalize hist3 plot
Use histogram2 instead of hist3. As stated in the "Alternative Functionality" section of the hist3 documentation page, histogram...

8日 前 | 0

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How to remove the outliers
Take a look at the filloutliers and rmoutliers functions on this documentation page.

8日 前 | 0

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Equivalent of "spparms" to track algorithm choice for dense matrices ?
Why do you need information about what the mldivide function (or the backslash operator \) is doing? How do you intend to use th...

8日 前 | 0

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Write a function called eligible that helps the admission officer of the Graduate School decide whether the applicant is eligible for admission based on GRE scores. The function takes two positive scalars called v and q as in
Nowhere in your function do you define the variable admit the function returns as its output. You haven't shown the full text of...

8日 前 | 0

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MATLAB 2018a readtable VariableNamesLine bug
t = readtable('C:\Users\Documents\.....CSV'); You called readtable with just one input argument? The options object returned by...

8日 前 | 0

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I need a File Instillation key to download Matlab offline
I recommend starting first with the IT department at the University of Colorado Boulder. If they can't help you, then I would co...

8日 前 | 0

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Sum according to the values in another column
Use groupsummary. C1 = [1 1 1 1 1 2 2 2 2 2 2 3 3 3 4 4 4 4].'; C2 = [5 10 12 35 3 1 4 26 5 11 12 8 2 22 8 2 5 7].'; [binva...

9日 前 | 0

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Figure without border?
When you say "figure" do you mean the figure object (the window on the screen) or the axes contained in the figure? I've seen pe...

9日 前 | 1

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converting 3 arrays into matrix
You can't have an array in MATLAB whose element indices are non-integer values. If M is a matrix M(3.5, pi) will error (for exam...

9日 前 | 0

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Histograms from point cloud
You said in your comment to Rik's answer that xyzPoints is size [2019 4063 3]. I assume therefore that the x data is the first p...

10日 前 | 1

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Error in MATLAB median inside isoutlier function
You said you didn't overwrite any function, but did you download a function or a collection of functions or are you shadowing th...

10日 前 | 0

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