I am trying to receive data from Pixhawk 6x in Connected IO mode and Monitor & Tune simulation in R2024a and R2024b release. However, I am getting zero values for accel and gyro valuesI am trying to receive data from Pixhawk 6x in Connected IO mode and Monitor & Tune simulation in R2024a and R2024b release. However, I am getting zero values for accel and gyro values I am trying to receive data from Pixhawk 6x in Connected IO mode and Monitor & Tune simulation in R2024a and R2024b release. However, I am getting zero values for accel and gyro values px4 MATLAB Answers — New Questions

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Hello,

Just installed polyspace test R2024b, but the GUI does not load completly and is not accesible.
The following message is shown: Cannot read properties of undefined (reading ‘statusCode’)

I already re-installed couple of times with the same result.
Does anyone know that can be / how to solve the issue?Hello,

Just installed polyspace test R2024b, but the GUI does not load completly and is not accesible.
The following message is shown: Cannot read properties of undefined (reading ‘statusCode’)

I already re-installed couple of times with the same result.
Does anyone know that can be / how to solve the issue? Hello,

Just installed polyspace test R2024b, but the GUI does not load completly and is not accesible.
The following message is shown: Cannot read properties of undefined (reading ‘statusCode’)

I already re-installed couple of times with the same result.
Does anyone know that can be / how to solve the issue? polyspace test MATLAB Answers — New Questions

​

I’m currently doing image processing, I had already created the database (982×2) where column 1 for RGB and column 2 for grayscale for all the images but I want to check whether the database is correct or not. So I want to read and show the image but I don’t know how to read the image by its row and column. Can anyone help me? Thank you in advance.I’m currently doing image processing, I had already created the database (982×2) where column 1 for RGB and column 2 for grayscale for all the images but I want to check whether the database is correct or not. So I want to read and show the image but I don’t know how to read the image by its row and column. Can anyone help me? Thank you in advance. I’m currently doing image processing, I had already created the database (982×2) where column 1 for RGB and column 2 for grayscale for all the images but I want to check whether the database is correct or not. So I want to read and show the image but I don’t know how to read the image by its row and column. Can anyone help me? Thank you in advance. read and show image from database MATLAB Answers — New Questions

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According to https://www.mathworks.com/matlabcentral/content/fx/about.html I should be able to share my code without uploading a file, just by linking to my website.
When I try to Publish to File Exchange, I have "My code is on Github", "My code is on my computer" but I have no "Link to an External Website".

Where is this feature ?According to https://www.mathworks.com/matlabcentral/content/fx/about.html I should be able to share my code without uploading a file, just by linking to my website.
When I try to Publish to File Exchange, I have "My code is on Github", "My code is on my computer" but I have no "Link to an External Website".

Where is this feature ? According to https://www.mathworks.com/matlabcentral/content/fx/about.html I should be able to share my code without uploading a file, just by linking to my website.
When I try to Publish to File Exchange, I have "My code is on Github", "My code is on my computer" but I have no "Link to an External Website".

Where is this feature ? fileexchange MATLAB Answers — New Questions

​

Hello, I’m currently researching using reinforcement learning as a controller to solve non-linearities in hydraulic systems, I’m facing a problem during traning my rl agent isn’t learning or settles on very low reward, I really don’t understand it’s behaviour I increased exploration and faced the same problem I was using initially a ddqn agent and faced the same problem. I’m so lost.
criticOptions = rlOptimizerOptions( …
Optimizer="adam", …
LearnRate=1e-5,…
GradientThreshold=1, …
L2RegularizationFactor=2e-4);
actorOptions = rlOptimizerOptions( …
Optimizer="adam", …
LearnRate=1e-5,…
GradientThreshold=1, …
L2RegularizationFactor=1e-5);
agentOptions = rlTD3AgentOptions;
agentOptions.ExplorationModel.StandardDeviation = 0.5;
agentOptions.ExplorationModel.StandardDeviationDecayRate = 1e-4;
agentOptions.DiscountFactor = 0.99;
agentOptions.TargetSmoothFactor = 5e-3;
agentOptions.TargetPolicySmoothModel.Variance = 0.2;
agentOptions.TargetUpdateFrequency = 10;
agentOptions.CriticOptimizerOptions = criticOptions;
agentOptions.ActorOptimizerOptions = actorOptions;
agent = rlTD3Agent(actor,[critic1 critic2],agentOptions);
trainOpts = rlTrainingOptions(…
‘MaxEpisodes’, 400, …
‘MaxStepsPerEpisode’, ceil(Tf / Ts), …
‘StopTrainingCriteria’, ‘EpisodeReward’, …
‘StopTrainingValue’, 2000, …
‘Verbose’, true, …
‘Plots’, ‘training-progress’, …
‘SaveAgentCriteria’, ‘Custom’, …
‘SaveAgentValue’, @mySaveFcn, …
‘SaveAgentDirectory’, "SavedAgents");
[trainingStats] = train(agent, env, trainOpts);
Here’s the for the agent and traning
function y = fcn(u)
u=abs(u);
if (u<=0.005)
y=10;
elseif (u<=0.05)
y=5;
elseif (u<=0.5)
y=1;
else
y=-1;
end
end
and this is the reward
I’ve increased the number of episodes it didn’t change a thingHello, I’m currently researching using reinforcement learning as a controller to solve non-linearities in hydraulic systems, I’m facing a problem during traning my rl agent isn’t learning or settles on very low reward, I really don’t understand it’s behaviour I increased exploration and faced the same problem I was using initially a ddqn agent and faced the same problem. I’m so lost.
criticOptions = rlOptimizerOptions( …
Optimizer="adam", …
LearnRate=1e-5,…
GradientThreshold=1, …
L2RegularizationFactor=2e-4);
actorOptions = rlOptimizerOptions( …
Optimizer="adam", …
LearnRate=1e-5,…
GradientThreshold=1, …
L2RegularizationFactor=1e-5);
agentOptions = rlTD3AgentOptions;
agentOptions.ExplorationModel.StandardDeviation = 0.5;
agentOptions.ExplorationModel.StandardDeviationDecayRate = 1e-4;
agentOptions.DiscountFactor = 0.99;
agentOptions.TargetSmoothFactor = 5e-3;
agentOptions.TargetPolicySmoothModel.Variance = 0.2;
agentOptions.TargetUpdateFrequency = 10;
agentOptions.CriticOptimizerOptions = criticOptions;
agentOptions.ActorOptimizerOptions = actorOptions;
agent = rlTD3Agent(actor,[critic1 critic2],agentOptions);
trainOpts = rlTrainingOptions(…
‘MaxEpisodes’, 400, …
‘MaxStepsPerEpisode’, ceil(Tf / Ts), …
‘StopTrainingCriteria’, ‘EpisodeReward’, …
‘StopTrainingValue’, 2000, …
‘Verbose’, true, …
‘Plots’, ‘training-progress’, …
‘SaveAgentCriteria’, ‘Custom’, …
‘SaveAgentValue’, @mySaveFcn, …
‘SaveAgentDirectory’, "SavedAgents");
[trainingStats] = train(agent, env, trainOpts);
Here’s the for the agent and traning
function y = fcn(u)
u=abs(u);
if (u<=0.005)
y=10;
elseif (u<=0.05)
y=5;
elseif (u<=0.5)
y=1;
else
y=-1;
end
end
and this is the reward
I’ve increased the number of episodes it didn’t change a thing Hello, I’m currently researching using reinforcement learning as a controller to solve non-linearities in hydraulic systems, I’m facing a problem during traning my rl agent isn’t learning or settles on very low reward, I really don’t understand it’s behaviour I increased exploration and faced the same problem I was using initially a ddqn agent and faced the same problem. I’m so lost.
criticOptions = rlOptimizerOptions( …
Optimizer="adam", …
LearnRate=1e-5,…
GradientThreshold=1, …
L2RegularizationFactor=2e-4);
actorOptions = rlOptimizerOptions( …
Optimizer="adam", …
LearnRate=1e-5,…
GradientThreshold=1, …
L2RegularizationFactor=1e-5);
agentOptions = rlTD3AgentOptions;
agentOptions.ExplorationModel.StandardDeviation = 0.5;
agentOptions.ExplorationModel.StandardDeviationDecayRate = 1e-4;
agentOptions.DiscountFactor = 0.99;
agentOptions.TargetSmoothFactor = 5e-3;
agentOptions.TargetPolicySmoothModel.Variance = 0.2;
agentOptions.TargetUpdateFrequency = 10;
agentOptions.CriticOptimizerOptions = criticOptions;
agentOptions.ActorOptimizerOptions = actorOptions;
agent = rlTD3Agent(actor,[critic1 critic2],agentOptions);
trainOpts = rlTrainingOptions(…
‘MaxEpisodes’, 400, …
‘MaxStepsPerEpisode’, ceil(Tf / Ts), …
‘StopTrainingCriteria’, ‘EpisodeReward’, …
‘StopTrainingValue’, 2000, …
‘Verbose’, true, …
‘Plots’, ‘training-progress’, …
‘SaveAgentCriteria’, ‘Custom’, …
‘SaveAgentValue’, @mySaveFcn, …
‘SaveAgentDirectory’, "SavedAgents");
[trainingStats] = train(agent, env, trainOpts);
Here’s the for the agent and traning
function y = fcn(u)
u=abs(u);
if (u<=0.005)
y=10;
elseif (u<=0.05)
y=5;
elseif (u<=0.5)
y=1;
else
y=-1;
end
end
and this is the reward
I’ve increased the number of episodes it didn’t change a thing rl, reward, machine learning, deep learning, reinforcment learning MATLAB Answers — New Questions

​

I have a mat file which contains userInputs that has 24 fileds. when i load in MATLAB 2023b i gives struct field userInput.SignalSourceType as empty but when i load same file in MATLAB 2024b i givest struct field userInput.SignalSourceType as 1. I am attaching screenshot for reference. The difference cause further issues and errors in my code and i need to run it on 2024b for certain requirments. If anyone have resolution please help me out.I have a mat file which contains userInputs that has 24 fileds. when i load in MATLAB 2023b i gives struct field userInput.SignalSourceType as empty but when i load same file in MATLAB 2024b i givest struct field userInput.SignalSourceType as 1. I am attaching screenshot for reference. The difference cause further issues and errors in my code and i need to run it on 2024b for certain requirments. If anyone have resolution please help me out. I have a mat file which contains userInputs that has 24 fileds. when i load in MATLAB 2023b i gives struct field userInput.SignalSourceType as empty but when i load same file in MATLAB 2024b i givest struct field userInput.SignalSourceType as 1. I am attaching screenshot for reference. The difference cause further issues and errors in my code and i need to run it on 2024b for certain requirments. If anyone have resolution please help me out. mat file, matlab version compatibility, load MATLAB Answers — New Questions

​

Hello
I would like to measure the freqeuncy of a 3 phase signal generated by a 3 phase generator in simscape electrical?
I didn’t use the sps library for my model, is there any alternative in the simscape electrical (the blue blocks)?
thank youHello
I would like to measure the freqeuncy of a 3 phase signal generated by a 3 phase generator in simscape electrical?
I didn’t use the sps library for my model, is there any alternative in the simscape electrical (the blue blocks)?
thank you Hello
I would like to measure the freqeuncy of a 3 phase signal generated by a 3 phase generator in simscape electrical?
I didn’t use the sps library for my model, is there any alternative in the simscape electrical (the blue blocks)?
thank you simscape electrical, frequency, measure MATLAB Answers — New Questions

​

Hi,

i encountered the problem that when calling a python function within the matlab environment, the return value from python is not recognized in matlab – i always get a py.NoneType as an output.
Here my code in python, it is a code to send E-mails. I can see the print commands as an output in matlab but cannot capture the return values properly (always a py.NoneType in Matlab). When calling the function directly from python everything works fine.
What could the problem be ?

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email import encoders
import os

def send_email(gmail_user, gmail_password, to_email, subject, body, attachment_path):
"""
Send an email with an attachment using Gmail’s SMTP server.

Parameters:
gmail_user (str): Your Gmail email address
gmail_password (str): Your Gmail app password
to_email (str): Recipient’s email address
subject (str): Subject of the email
body (str): Body text of the email
attachment_path (str): Full path to the attachment file
"""

try:
# Create the email
email = MIMEMultipart()
email[‘From’] = gmail_user
email[‘To’] = to_email
email[‘Subject’] = subject

# Add the email body
email.attach(MIMEText(body, ‘plain’))

# Normalize the file path
attachment_path = attachment_path.encode(‘utf-8’).decode(‘utf-8’)
attachment_path = os.path.normpath(attachment_path)
# attachment_path = attachment_path.replace("\", "\\")
print(f"Processed attachment path: {attachment_path}")

# Check if the attachment file exists
if not os.path.exists(attachment_path):
print(f"Error: The file {attachment_path} does not exist.")
return ‘Name in Email not correct!’;

# Open the file in binary mode and encode it
with open(attachment_path, ‘rb’) as attachment_file:
attachment = MIMEBase(‘application’, ‘octet-stream’) # Generic MIME type, could be more specific
attachment.set_payload(attachment_file.read())
encoders.encode_base64(attachment)

# Extract filename from the path
filename = os.path.basename(attachment_path)
print(f"Attachment found: {filename}")

# Add header for the attachment
attachment.add_header(‘Content-Disposition’, ‘attachment’, filename=filename)

# Attach the file to the email
email.attach(attachment)
print(f"Attachment ‘{filename}’ added successfully.")
return ‘yes’

# Send the email using Gmail’s SMTP server
with smtplib.SMTP(‘smtp.gmail.com’, 587) as server:
server.starttls() # Secure the connection
server.login(gmail_user, gmail_password)
server.sendmail(gmail_user, to_email, email.as_string())
print("Email sent successfully!")

return ‘Email sent!’

except Exception as e:
print(f"Failed to send email: {e}")
return ‘Email failed fatal!’

return "Unknown error occurred."

Thanks in advance
I tried a "mini example" with a simple python function (just adding two numbers) and it worked, so I have no idea why the more advanced code does not work.Hi,

i encountered the problem that when calling a python function within the matlab environment, the return value from python is not recognized in matlab – i always get a py.NoneType as an output.
Here my code in python, it is a code to send E-mails. I can see the print commands as an output in matlab but cannot capture the return values properly (always a py.NoneType in Matlab). When calling the function directly from python everything works fine.
What could the problem be ?

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email import encoders
import os

def send_email(gmail_user, gmail_password, to_email, subject, body, attachment_path):
"""
Send an email with an attachment using Gmail’s SMTP server.

Parameters:
gmail_user (str): Your Gmail email address
gmail_password (str): Your Gmail app password
to_email (str): Recipient’s email address
subject (str): Subject of the email
body (str): Body text of the email
attachment_path (str): Full path to the attachment file
"""

try:
# Create the email
email = MIMEMultipart()
email[‘From’] = gmail_user
email[‘To’] = to_email
email[‘Subject’] = subject

# Add the email body
email.attach(MIMEText(body, ‘plain’))

# Normalize the file path
attachment_path = attachment_path.encode(‘utf-8’).decode(‘utf-8’)
attachment_path = os.path.normpath(attachment_path)
# attachment_path = attachment_path.replace("\", "\\")
print(f"Processed attachment path: {attachment_path}")

# Check if the attachment file exists
if not os.path.exists(attachment_path):
print(f"Error: The file {attachment_path} does not exist.")
return ‘Name in Email not correct!’;

# Open the file in binary mode and encode it
with open(attachment_path, ‘rb’) as attachment_file:
attachment = MIMEBase(‘application’, ‘octet-stream’) # Generic MIME type, could be more specific
attachment.set_payload(attachment_file.read())
encoders.encode_base64(attachment)

# Extract filename from the path
filename = os.path.basename(attachment_path)
print(f"Attachment found: {filename}")

# Add header for the attachment
attachment.add_header(‘Content-Disposition’, ‘attachment’, filename=filename)

# Attach the file to the email
email.attach(attachment)
print(f"Attachment ‘{filename}’ added successfully.")
return ‘yes’

# Send the email using Gmail’s SMTP server
with smtplib.SMTP(‘smtp.gmail.com’, 587) as server:
server.starttls() # Secure the connection
server.login(gmail_user, gmail_password)
server.sendmail(gmail_user, to_email, email.as_string())
print("Email sent successfully!")

return ‘Email sent!’

except Exception as e:
print(f"Failed to send email: {e}")
return ‘Email failed fatal!’

return "Unknown error occurred."

Thanks in advance
I tried a "mini example" with a simple python function (just adding two numbers) and it worked, so I have no idea why the more advanced code does not work. Hi,

i encountered the problem that when calling a python function within the matlab environment, the return value from python is not recognized in matlab – i always get a py.NoneType as an output.
Here my code in python, it is a code to send E-mails. I can see the print commands as an output in matlab but cannot capture the return values properly (always a py.NoneType in Matlab). When calling the function directly from python everything works fine.
What could the problem be ?

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email import encoders
import os

def send_email(gmail_user, gmail_password, to_email, subject, body, attachment_path):
"""
Send an email with an attachment using Gmail’s SMTP server.

Parameters:
gmail_user (str): Your Gmail email address
gmail_password (str): Your Gmail app password
to_email (str): Recipient’s email address
subject (str): Subject of the email
body (str): Body text of the email
attachment_path (str): Full path to the attachment file
"""

try:
# Create the email
email = MIMEMultipart()
email[‘From’] = gmail_user
email[‘To’] = to_email
email[‘Subject’] = subject

# Add the email body
email.attach(MIMEText(body, ‘plain’))

# Normalize the file path
attachment_path = attachment_path.encode(‘utf-8’).decode(‘utf-8’)
attachment_path = os.path.normpath(attachment_path)
# attachment_path = attachment_path.replace("\", "\\")
print(f"Processed attachment path: {attachment_path}")

# Check if the attachment file exists
if not os.path.exists(attachment_path):
print(f"Error: The file {attachment_path} does not exist.")
return ‘Name in Email not correct!’;

# Open the file in binary mode and encode it
with open(attachment_path, ‘rb’) as attachment_file:
attachment = MIMEBase(‘application’, ‘octet-stream’) # Generic MIME type, could be more specific
attachment.set_payload(attachment_file.read())
encoders.encode_base64(attachment)

# Extract filename from the path
filename = os.path.basename(attachment_path)
print(f"Attachment found: {filename}")

# Add header for the attachment
attachment.add_header(‘Content-Disposition’, ‘attachment’, filename=filename)

# Attach the file to the email
email.attach(attachment)
print(f"Attachment ‘{filename}’ added successfully.")
return ‘yes’

# Send the email using Gmail’s SMTP server
with smtplib.SMTP(‘smtp.gmail.com’, 587) as server:
server.starttls() # Secure the connection
server.login(gmail_user, gmail_password)
server.sendmail(gmail_user, to_email, email.as_string())
print("Email sent successfully!")

return ‘Email sent!’

except Exception as e:
print(f"Failed to send email: {e}")
return ‘Email failed fatal!’

return "Unknown error occurred."

Thanks in advance
I tried a "mini example" with a simple python function (just adding two numbers) and it worked, so I have no idea why the more advanced code does not work. python, function, py.nonetype MATLAB Answers — New Questions

​

I can build and deploy any program on the board (LAUNCHXL-F280049C). It works correctly.
For debugging purpose, I wanted to connect the board with my computer with the external mode. I have this error bellow.
I have try differents things:
In configuration parameter/hardware implementation/target hardware resources/external mode => try both COM port (UART and dataport)
Different switchs settings tried
S6 : 0 & S8 : 0
S3.1 : 1 & S4 : 1 & S8 : 1

__________________________________________________________________________________________
External Mode Open Protocol Connect command failed Caused by:
Could not connect to target application: XCP internal error: timeout expired, in response to XCP CONNECT commandI can build and deploy any program on the board (LAUNCHXL-F280049C). It works correctly.
For debugging purpose, I wanted to connect the board with my computer with the external mode. I have this error bellow.
I have try differents things:
In configuration parameter/hardware implementation/target hardware resources/external mode => try both COM port (UART and dataport)
Different switchs settings tried
S6 : 0 & S8 : 0
S3.1 : 1 & S4 : 1 & S8 : 1

__________________________________________________________________________________________
External Mode Open Protocol Connect command failed Caused by:
Could not connect to target application: XCP internal error: timeout expired, in response to XCP CONNECT command I can build and deploy any program on the board (LAUNCHXL-F280049C). It works correctly.
For debugging purpose, I wanted to connect the board with my computer with the external mode. I have this error bellow.
I have try differents things:
In configuration parameter/hardware implementation/target hardware resources/external mode => try both COM port (UART and dataport)
Different switchs settings tried
S6 : 0 & S8 : 0
S3.1 : 1 & S4 : 1 & S8 : 1

__________________________________________________________________________________________
External Mode Open Protocol Connect command failed Caused by:
Could not connect to target application: XCP internal error: timeout expired, in response to XCP CONNECT command simulink, c2000 MATLAB Answers — New Questions

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How i can you ode extend function to used the solution till the end of timespan and in between used the RLC, offset and phase time as parameterizng function. Kindly guide me.How i can you ode extend function to used the solution till the end of timespan and in between used the RLC, offset and phase time as parameterizng function. Kindly guide me. How i can you ode extend function to used the solution till the end of timespan and in between used the RLC, offset and phase time as parameterizng function. Kindly guide me. matlab MATLAB Answers — New Questions

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