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3 of your answers have been accepted
Awarded to Michael on 22 Jun 2022
Answer 3 questions that were unanswered for more than 30 days
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Content Feed
undefined function error for builtin toolbox function
Did you install that toolbox when you installed Matlab? If not, run the 2021b installer again and only select the Image Processi...
25 giorni ago | 0
| accepted
When I try to generate C++ code for generalizedInverseKinematics I get the following error Dimension 2 is fixed on the left-hand side but varies on the right ([1 x 8] ~= [1 x
@Aravindh Deiva G, I looks like you are trying to save the output of the validatestring function over the entries in value,...
circa 2 mesi ago | 0
Question
Deploying ROS2 Node with Custom Messages
I have Matlab code that includes a ROS2 node/publisher. I want to publish custom messages. This works when I run it natively in ...
circa 2 mesi ago | 1 answer | 0
1
answerFind matching small matrix in larger matrix
An admittedly brute force approach, but Matlab doesn't have a built in method for finding patterns in an array/matrix (at least ...
circa 2 mesi ago | 0
| accepted
Vectorize comparing a column vector in a matrix to all other vectors in the matrix.
You can use repmat.m to make a matrix of the same size. a = A.a - repmat(A.a(:,1),1,size(A.a,2)) b = A.b - repmat(A.b(:,1),1,s...
circa 2 mesi ago | 0
Filter design to remove noise
Are you talking about the high frequency stuff? Try lowpass.m
circa 2 mesi ago | 0
Error in 'udp/UDP Receive': Received a fractional-length packet for the specified data type.
I've had this issue before and it was related to the port already being used by another process. You may want to change you port...
circa 2 mesi ago | 0
Question
Current Directory for Generated Code
pwd Doesn't seem to be supported for code generation. How might one get the current directory when deploying code with code gene...
circa 2 mesi ago | 1 answer | 0
1
answerHow can I set up unequal bin widths in a histogram?
Check out the 'BinEdges' argument. blah = randi(20,1000,1); histogram(blah,"Normalization","probability","DisplayStyle","bar"...
circa 2 mesi ago | 1
| accepted
Question
Properly Disconnect from ROS2 Network with Generated Code
The Matlab ROS2 publish/subscribe documentation suggests using clear to remove the sample nodes, publishers and subscribers from...
circa 2 mesi ago | 1 answer | 0
1
answerQuestion
How to Flush Input Buffer for dsp.UDPReceiver
I am using dsp.UDPReceiver objects in my code. There are times when I put my code into an idle state. When I transition back to ...
circa 2 mesi ago | 0 answers | 0
0
answersHow do I pre-allocate memory for a structure?
Repmat offers another solution for preallocating structures: https://www.mathworks.com/help/simulink/ug/defining-arrays-of-stru...
2 mesi ago | 0
Object Arrays in Code Generation
The answer is that it does not support object arrays. Here is the workaround https://www.mathworks.com/help/coder/ug/resolve-er...
2 mesi ago | 0
| accepted
Question
Object Arrays in Code Generation
Does code generation support arrays of custom objects? Here is a simple class. classdef MyClass properties value...
2 mesi ago | 1 answer | 0
1
answerCode Generation Segmentation Fault
I figured out the problem. In my code, I has a relative path that pointed to a configuration file my code needed that used to be...
2 mesi ago | 0
| accepted
Question
Code Generation Segmentation Fault
I am trying to generate an executable from my Matlab Code. I have done this in the past with this same codebase and it worked fi...
2 mesi ago | 1 answer | 0
1
answerROS2 Bag Writer?
I appears as though this wasn't supported for R2022a, but the prerelease of R2022b has a new function ros2bagwriter object: http...
2 mesi ago | 0
| accepted
Question
Error recovery (try/catch) for Code Generation
What is the best way to implement error handling for Matlab code that I plan to deploy to C/C++ so that my code doesn't crash if...
2 mesi ago | 0 answers | 0
0
answersQuestion
ROS2 Lifecycle Node Example
I am trying to build a ROS2 node in Matlab that is compliant as a life cycle managed node. I am having trouble understanding how...
2 mesi ago | 1 answer | 0
1
answerQuestion
Use ROS2 Launch File to Run Multiple Instances of Matlab Generated ROS2 Nodes
I have generated and succesfully deployed a ROS2 node that publishes simple messages from my Matlab code. I can run this on my t...
3 mesi ago | 1 answer | 0
1
answerCompatibility ros2node with Coder Generation
FYI for anyone in the future: A quick way to see how to use command line code generation if you are used to using the Coder App ...
3 mesi ago | 1
Question
How to Run a ROS2 Node Executable Generated by Coder?
I have a simple function that publishes to a ROS2 topic and I need this publisher to run as a separate process outside of Matlab...
3 mesi ago | 1 answer | 0
1
answerQuestion
Compatibility ros2node with Coder Generation
According to the ros2node documentation, the function supports code generation with a one node per function limitation. When I t...
3 mesi ago | 2 answers | 0
2
answersQuestion
ROS2 Bag Writer?
There appears to only be a rosbagwriter function for ROS log files but not ROS2 log files: https://www.mathworks.com/help/ros/...
3 mesi ago | 1 answer | 0
1
answerDelete array elements with Coder compatibility
Figured out a solution. Redefine the string use logical indexing to select all but the element you want to exclude. myStr = myS...
6 mesi ago | 0
Question
Delete array elements with Coder compatibility
I need to delete elements of a string with compatibility for Coder. For example: myStr = 'This is a fun problem!' myStr(10) = ...
6 mesi ago | 2 answers | 0
2
answersTiming for UDP Data Stream
@Gavin Grant This isn't quite what I was looking for, as I was trying to get execution synchronized with wall clock time. I real...
11 mesi ago | 1
| accepted
Question
Simulink Standalone Executable from Coder for Real-Time Execution
I need to receive UDP data in real time and do some light processing of the data (mixing and decimating). I eventually want to r...
11 mesi ago | 0 answers | 0
0
answersQuestion
Signal types for dimension 8 vs [8 x 1] - what's the difference?
I appologize for such a simple questions, but I am in the process of learning Simulink. I am using the 'Information Overlay' to ...
11 mesi ago | 1 answer | 0
1
answerQuestion
Timing for UDP Data Stream
I have a software defined radio that is streaming data over a network port at 192,000 Samples per second. I want to connect to t...
11 mesi ago | 2 answers | 0
2
answers
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