matlab articles

  I would like to remove the current End User of my Individual or Designated Computer, but I see a padlock icon instead of the remove user button. Why is this?   NOTE:- Matlabsolutions.com  provide latest  MatLab Homework Help,MatLab Assignment Help  ,  Finance Assignment Help  for students, engineers and researchers in Multiple Branches like ECE, EEE, CSE, Mechanical, Civil with 100% output.Matlab Code for B.E, B.Tech,M.E,M.Tech, Ph.D. Scholars with 100% privacy guaranteed. Get MATLAB projects with source code for your learning and research. The most common reason you will be unable to change the End User on an Individual or Designated Computer license is because validation is enabled on the license but the validation status is overdue for one or more activations.   To check if validation is overdue, go to your License Center and click the License, then going to the “Install and Activate” tab. Click on the Activation Label – if validated you will see (Current) next to the “Last Valida

  I need to deactivate MATLAB but I cannot access the machine that MATLAB was installed on. Therefore, I am unable to retrieve the deactivation string. How can I deactivate MATLAB without the deactivation string or access to the machine MATLAB was activated on?   NOTE:- Matlabsolutions.com  provide latest  MatLab Homework Help,MatLab Assignment Help  ,  Finance Assignment Help  for students, engineers and researchers in Multiple Branches like ECE, EEE, CSE, Mechanical, Civil with 100% output.Matlab Code for B.E, B.Tech,M.E,M.Tech, Ph.D. Scholars with 100% privacy guaranteed. Get MATLAB projects with source code for your learning and research. If the activated machine is not accessible to obtain the deactivation string or deactivate MATLAB, it is still possible to deactivate. This is done on the MathWorks License Center. To deactivate MATLAB from the MathWorks License Center: Go to the MathWorks License Center. Select the license you want to deactivate. Select the "Install and Acti

  I am receiving the following error messages about singularities in my Simulink model:   Derivative of block at time is Inf of NaN. Stopping Simulation. There may be a singularity in the solution. If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances.) I have tried reducing the step size and adjusting tolerances, but I still receive this error message. I have also tried changing solvers, some solvers will just get to one point of the simulation, and hang.   NOTE:- Matlabsolutions.com  provide latest  MatLab Homework Help,MatLab Assignment Help  ,  Finance Assignment Help  for students, engineers and researchers in Multiple Branches like ECE, EEE, CSE, Mechanical, Civil with 100% output.Matlab Code for B.E, B.Tech,M.E,M.Tech, Ph.D. Scholars with 100% privacy guaranteed. Get MATLAB projects with source code for your learning and research. This message may be caused by a singularity in your system. One situation where this ma

  Hi, I want to do:   plot(x1,y1,x2,y2,'LineWidth',8) but the linewidth propery ends up applying to both lines. Do I have to use two plot functions with a hold on command to have line1 a different width than line2?   NOTE:- Matlabsolutions.com  provide latest  MatLab Homework Help,MatLab Assignment Help  ,  Finance Assignment Help  for students, engineers and researchers in Multiple Branches like ECE, EEE, CSE, Mechanical, Civil with 100% output.Matlab Code for B.E, B.Tech,M.E,M.Tech, Ph.D. Scholars with 100% privacy guaranteed. Get MATLAB projects with source code for your learning and research. To plot two lines with different line widths, you can use either of these approaches.   1. Return the two “Line” objects as an output argument from the “plot” function and then set the “LineWidth” property for each.     p = plot(x1,y1,x2,y2) p(1).LineWidth = 5; p(2).LineWidth = 10; 2. Use the “hold on” command to plot the two lines separately. Specify the line width by setting the “

  It is possible to execute the command line to record a rosbag from Matlab to the turtlebot. . I try with     if true % code rosdevice('MyIP','Username','Password') system(d,'rosbag record --duration=10 -o NameFile /odom') end but I have an error: STDERR : bash : rosbag: command not found . I'm able to do this with the command -> openShell(d). And type in shell directly : rosbag record --duration=10 -o NameFile /odom. After upload on my Matlab coomputer : getfile(d,'path/name');   But if it is possible to do all this directly in Matlab without 'openShell', that will be great ! Thank you in advance for your help   NOTE:- Matlabsolutions.com  provide latest  MatLab Homework Help,MatLab Assignment Help  ,  Finance Assignment Help  for students, engineers and researchers in Multiple Branches like ECE, EEE, CSE, Mechanical, Civil with 100% output.Matlab Code for B.E, B.Tech,M.E,M.Tech, Ph.D. Scholars with 100% privacy guaranteed.

  I completed the getting started examples and also did some publishing/subscribing from matlab to standard ros nodes, but only for std_msgs. Now I want to use a custom message (foo_msg) from one of my package (foo), if I use rosmsg in the shell I can see it.   But if, in matlab I try to create publsiher, for a matlab node already created, typing : publisher = rosmatlab.publisher('TOPIC', 'foo/foo_msg', node); I get :     Error using rosmatlab.node/addPublisher (line 543) Java exception occurred: org.ros.exception.RosMessageRuntimeException: java.lang.ClassNotFoundException: foo.foo_msg at org.ros.internal.message.definition.MessageDefinitionReflectionProvider.get(MessageDefinitionReflectionProvider.java:58) at org.ros.internal.message.Md5Generator.generate(Md5Generator.java:44) at org.ros.internal.message.topic.TopicDescriptionFactory.newFromType(TopicDescriptionFactory.java:36)

  I have a problem in the Plan using the HybridA* while for what concerns the case of a RRT Path planning, I have no problem to run the script.   I don't know why the different Path Planning can create this error.   load("VI_Track_map.mat"); figure show(VI_Track_map) grid on %% HybridA* Path Planning clear validator; validator = validatorOccupancyMap; validator.Map = VI_Track_map; validator.ValidationDistance = 100; planner = plannerHybridAStar(validator,'MinTurningRadius',20,'MotionPrimitiveLength',20); figure show(planner) start = [7100 7100 0]; goal = [7500 7100 0]; show(planner,"Tree","off") hold on %% RRT Path Planning ss=stateSpaceSE2; sv=validatorOccupancyMap(ss); sv.Map=VI_Track_map; sv.ValidationDistance=30; ss.StateBounds=[VI_Track_map.XWorldLimits; VI_Track_map.YWorldLimits; [-pi/2 pi/2]]; planner1=plannerRRT(ss,sv); planner1.MaxConnectionDistance=80; rng(10000,'twister'); start = [7100 7100 0]; goal = [7500 7100 0];

  I have an array of ground truth objects that I want to pass to the "objectDetectorTrainingData" function. However, when I make a call to this function, I receive the following error message:     Error using objectDetectorTrainingData>checkGroundTruthLabelDefinitions (line 438) Expected label definitions to have the same label names. Found a mismatch in element 2 of input groundTruth array. I would have expected "objectDetectorTrainingData" to automatically take the union over all label sets, though this does not appear to be the case. Is there any workaround to achieve this workflow?   NOTE:- Matlabsolutions.com  provide latest  MatLab Homework Help,MatLab Assignment Help  ,  Finance Assignment Help  for students, engineers and researchers in Multiple Branches like ECE, EEE, CSE, Mechanical, Civil with 100% output.Matlab Code for B.E, B.Tech,M.E,M.Tech, Ph.D. Scholars with 100% privacy guaranteed. Get MATLAB projects with source code for your learning and resea

  I was trying to use Robotics System Toolbox(MATLAB 2015a on windows 7) to communicate with the ROS running on Ubuntu 14.04. The "rosinit" was successful and MATLAB can see the rosnode list, rostopic list, etc. I can also create the rossubscriber from MATLAB to any topic successfully.   But when I run "receive" command, it just wait forever until timeout. It seems no new message is coming which should not be the case (as I am sure the ROS on Ubuntu is constantly publishing the new kinect images).   I have tried several different settings for rosinit, such as using ROS_MASTER_URI, ROS_IP, etc. Also the two PCs can ping each other's IP successfully. So I think the network connection between the two machines should be good. But MATLAB still couldn't receive the message although it can see and subscribe the topic.   Could anyone suggest any possible cause for this issue? Your help would be really appreciated!   NOTE:- Matlabsolutions.com  provide latest  MatLab

  Hi all,   I have some custom ROS messages that I have loaded into MATLAB utilizing the rosgenmsg routine. Everything went fine and they show up when calling rosmsg list.   When I went to read messages of the custom type from my rosbag I received the following error:     Reference to non-existent field 'Forces_'. Error in robotics.ros.custom.msggen.sfm_msgs.Forces/reload (line 165) Forces_Cell = arrayfun(@(x) feval([obj.SfmMsgsForceClass '.loadobj'], x), strObj.Forces_, 'UniformOutput', false); Error in robotics.ros.Message/fromStruct (line 172) obj.reload(sObj); Error in robotics.ros.BagSelection/readMessages (line 280) msgs{i}.fromStruct(msgStructs{i}); I did some investigation on how the function works and where the error comes from. In robotics.ros.Message/fromStruct the code tries to create a message object from the bag information (which is in struct format). For my custom message of type sfm_msgs/Forces the fi