Steven Lord
MathWorks
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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trainnet function - randomness and repeatability
What happens when you reset the state or seed of the random number generator before each attempt to train the network? Let's cho...
trainnet function - randomness and repeatability
What happens when you reset the state or seed of the random number generator before each attempt to train the network? Let's cho...
7日 前 | 0
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Trying to solve for a number of variables in a matrix. Getting a structfun error.
Let's look at what solution is after the call to solve. I just added in a few semicolons to suppress some of the output. E = 10...
Trying to solve for a number of variables in a matrix. Getting a structfun error.
Let's look at what solution is after the call to solve. I just added in a few semicolons to suppress some of the output. E = 10...
22日 前 | 0
回答済み
Financial Toolbox installed but bndprice function not found
According to the output of ver that you posted, you're using MATLAB Online (basic). According to the FAQ on the page describing ...
Financial Toolbox installed but bndprice function not found
According to the output of ver that you posted, you're using MATLAB Online (basic). According to the FAQ on the page describing ...
22日 前 | 0
回答済み
Reading a string & sorting it into usable variables
Let's take a sample string. S = "Layup: [45/-45/0/90/90/0/-45/45]"; Get the text after the leading [ S2 = extractAfter(S, "["...
Reading a string & sorting it into usable variables
Let's take a sample string. S = "Layup: [45/-45/0/90/90/0/-45/45]"; Get the text after the leading [ S2 = extractAfter(S, "["...
28日 前 | 0
回答済み
I have downloaded this package, but can not seem to use the "readDistance' command.
Searching the documentation for functions named readDistance, I found two hits on the first page. The first one requires the MA...
I have downloaded this package, but can not seem to use the "readDistance' command.
Searching the documentation for functions named readDistance, I found two hits on the first page. The first one requires the MA...
28日 前 | 1
回答済み
Dialog box Unable to resolve the name 'matlab.io.internal.xlsreadSupportedExtensions' error prevents me from opening a file
The fact that the error occurs on line 5 of pad (which in my installation of release R2025b is completely blank) in a call to re...
Dialog box Unable to resolve the name 'matlab.io.internal.xlsreadSupportedExtensions' error prevents me from opening a file
The fact that the error occurs on line 5 of pad (which in my installation of release R2025b is completely blank) in a call to re...
約1ヶ月 前 | 0
回答済み
MATLAB standalone App Dynamic Class
From the documentation "MATLAB Runtime only works on MATLAB code that was encrypted when the deployable archive was built. Any f...
MATLAB standalone App Dynamic Class
From the documentation "MATLAB Runtime only works on MATLAB code that was encrypted when the deployable archive was built. Any f...
約1ヶ月 前 | 0
回答済み
Indexing behavior of table properties
In the former case, it is table's indexing code that is performing all the indexing steps. It knows how to index into the proper...
Indexing behavior of table properties
In the former case, it is table's indexing code that is performing all the indexing steps. It knows how to index into the proper...
約1ヶ月 前 | 1
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pathdef and resulting path very long
If you have a lot of products and/or add-ons in your installation, the path may have a lot of entries. V = ver; S = split(path...
pathdef and resulting path very long
If you have a lot of products and/or add-ons in your installation, the path may have a lot of entries. V = ver; S = split(path...
約1ヶ月 前 | 0
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fread a double that's been broken up into four 16 bit words
Let's make four random 16 bit integers. A = randi([intmin('uint16'), intmax('uint16')], 1, 4, 'uint16') Now we can typecast th...
fread a double that's been broken up into four 16 bit words
Let's make four random 16 bit integers. A = randi([intmin('uint16'), intmax('uint16')], 1, 4, 'uint16') Now we can typecast th...
約1ヶ月 前 | 2
| 採用済み
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How to read in m-files into a Matlab-generated-Exe
From the documentation "MATLAB Runtime only works on MATLAB code that was encrypted when the deployable archive was built. Any f...
How to read in m-files into a Matlab-generated-Exe
From the documentation "MATLAB Runtime only works on MATLAB code that was encrypted when the deployable archive was built. Any f...
約1ヶ月 前 | 0
回答済み
Where can I download matlab/simulink example projects?
You're probably not going to be able to run the whole example without all the products listed in the box in the upper-right corn...
Where can I download matlab/simulink example projects?
You're probably not going to be able to run the whole example without all the products listed in the box in the upper-right corn...
約1ヶ月 前 | 0
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How do I use 'intersection' to get the overlapping line between two polyshapes?
These two polyshapes touch but do not intersect. x1 = [1 4 4 1]; y1 = [1 1 4 4]; x2 = [4 6 6 4]; y2 = [2 2 3 3]; poly1 = po...
How do I use 'intersection' to get the overlapping line between two polyshapes?
These two polyshapes touch but do not intersect. x1 = [1 4 4 1]; y1 = [1 1 4 4]; x2 = [4 6 6 4]; y2 = [2 2 3 3]; poly1 = po...
約2ヶ月 前 | 1
回答済み
MATLAB crash during matrix multiplication in Matlab Function
Can you confirm that you've looked in the locations given in this Answers post and cannot find any crash log files created at th...
MATLAB crash during matrix multiplication in Matlab Function
Can you confirm that you've looked in the locations given in this Answers post and cannot find any crash log files created at th...
約2ヶ月 前 | 0
回答済み
String to double conversion misunderstanding
The mistake is that you're using command form for calling the class function, not function form. These: class ACVoltageR class...
String to double conversion misunderstanding
The mistake is that you're using command form for calling the class function, not function form. These: class ACVoltageR class...
約2ヶ月 前 | 2
回答済み
What is the proper way to clean up internal timers when deleting a MATLAB class object?
Depending on exactly how you're creating the timer object, if you're using release R2024b or later perhaps creating a weak refer...
What is the proper way to clean up internal timers when deleting a MATLAB class object?
Depending on exactly how you're creating the timer object, if you're using release R2024b or later perhaps creating a weak refer...
2ヶ月 前 | 0
回答済み
Determine which delaunayTriangulation Constraints correspond to input constraints?
I have not looked at the spatialgraph2D tool Matt J suggested, but I suspect you can do the same thing using functionality inclu...
Determine which delaunayTriangulation Constraints correspond to input constraints?
I have not looked at the spatialgraph2D tool Matt J suggested, but I suspect you can do the same thing using functionality inclu...
2ヶ月 前 | 0
回答済み
CAT12 fails in MATLAB R2025b due to WebGL/ANGLE OpenGL incompatibility, but works in R2023a
The Release Notes state, among other things: "Calling the opengl (R2025a) function has no effect. To query the graphics renderer...
CAT12 fails in MATLAB R2025b due to WebGL/ANGLE OpenGL incompatibility, but works in R2023a
The Release Notes state, among other things: "Calling the opengl (R2025a) function has no effect. To query the graphics renderer...
2ヶ月 前 | 0
回答済み
does installing toolbox that has different version than your matlab program cause a problem
For MathWorks toolboxes, I believe the Installer and Add-Ons Manager ought to disallow you from "mixing and matching" releases. ...
does installing toolbox that has different version than your matlab program cause a problem
For MathWorks toolboxes, I believe the Installer and Add-Ons Manager ought to disallow you from "mixing and matching" releases. ...
2ヶ月 前 | 0
回答済み
Unbale to write scrips and program in MATLAB for application level
I suggest you start with the free MATLAB Onramp tutorial to quickly learn the essentials of MATLAB.
Unbale to write scrips and program in MATLAB for application level
I suggest you start with the free MATLAB Onramp tutorial to quickly learn the essentials of MATLAB.
2ヶ月 前 | 2
回答済み
Mixing name/value pair syntax
Suppose I show you this call. How would you as a human interpret it, and how would MATLAB interpret it (were it syntactically le...
Mixing name/value pair syntax
Suppose I show you this call. How would you as a human interpret it, and how would MATLAB interpret it (were it syntactically le...
3ヶ月 前 | 0
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回答済み
I want to define inputs for the function quantized_signal
Are you asking in general about how to call functions in MATLAB? If so you probably want to look at this section of the Getting ...
I want to define inputs for the function quantized_signal
Are you asking in general about how to call functions in MATLAB? If so you probably want to look at this section of the Getting ...
3ヶ月 前 | 0
回答済み
Calculate mean and standard deviation from 30-years of global wind data
Consider using groupsummary, specifying the groupbins input argument to control how the data is discretized into bins.
Calculate mean and standard deviation from 30-years of global wind data
Consider using groupsummary, specifying the groupbins input argument to control how the data is discretized into bins.
3ヶ月 前 | 0
回答済み
can we give access to the external users
Please contact Customer Service directly using this link.
can we give access to the external users
Please contact Customer Service directly using this link.
3ヶ月 前 | 0
回答済み
How to keep formatting when cutting and pasting to office
Try right-clicking in the email and selecting "Keep Source Formatting" under Paste Option in the context menu that comes up.
How to keep formatting when cutting and pasting to office
Try right-clicking in the email and selecting "Keep Source Formatting" under Paste Option in the context menu that comes up.
3ヶ月 前 | 0
回答済み
Timetables not fully supported by plot tools?
Let's say that with basic fitting, you wanted to fit a quadratic (y = a(1)*x^2+a(2)*x+a(3)) to your data. If the x data was doub...
Timetables not fully supported by plot tools?
Let's say that with basic fitting, you wanted to fit a quadratic (y = a(1)*x^2+a(2)*x+a(3)) to your data. If the x data was doub...
3ヶ月 前 | 0
回答済み
Dealing with Duration format
Use detectImportOptions to see how MATLAB would decide to import the data by default based on the contents of the file. Once you...
Dealing with Duration format
Use detectImportOptions to see how MATLAB would decide to import the data by default based on the contents of the file. Once you...
3ヶ月 前 | 0
回答済み
Request to rehost MATLAB network license (1102419) to new server IP
Please contact Customer Service or Technical Support directly using this link.
Request to rehost MATLAB network license (1102419) to new server IP
Please contact Customer Service or Technical Support directly using this link.
3ヶ月 前 | 0
回答済み
Why are the functions constSincNet and SincNetLayer absent in the "Speaker Identification Using Custom SincNet" example?
Please click on the "Copy Command" button in the upper-right corner of the example page then paste that command into MATLAB and ...
Why are the functions constSincNet and SincNetLayer absent in the "Speaker Identification Using Custom SincNet" example?
Please click on the "Copy Command" button in the upper-right corner of the example page then paste that command into MATLAB and ...
4ヶ月 前 | 0
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