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speeding up mpg video frame reading
seems to me the simplest change to gain speed is to remove this line : clear vidFrame I could get a speed increase of about 60%...
1 day ago | 0
How to design for decrement counter which should decrement from 500 to 0 using simulink blocks
hello simply make the difference between a constant (= 500) and a standard (rising) counter (0 to 500) the two blocks are t...
1 day ago | 1
using MATLAB to find area of flourescent region
hello this is a quick and dirty (potential) solution : that does not need the Image P Tbx generated by a non expert in th...
1 day ago | 0
pcolor plot: how to scale the smoothing differently in x and y directions
hello maybe this - I opted to overlay the two peaks on the center position (which I admit is not exactly what was asked)... b...
7 days ago | 0
produce the figure similar to this one in Matlab
hello maybe this ? (a quick and dirty attempt ) the plot rendering may differ on your PC vs here below : groups = 3; % dat...
7 days ago | 0
| accepted
Is there a way to extract the gray background from the image and just to keep the rainbow
hello here a quick answer - as I understand you want to extract the rainbow area from the entire picture . You can do a bounda...
8 days ago | 0
| accepted
Bode plot with right half plane zero
hello you can do this way : BTW , you pulstaion vector was huge and there is a better approach for Bode plots (as the x axis...
10 days ago | 0
M-File Errors when extracting a NetCDF data
hello I tested your code with another nc file I have on my pc and there seems to be no issue as soon as the m file and the nc ...
14 days ago | 0
Solved question video analysis
hello maybe this ? NB, this is a no Image Processing Tbx solution (as I don't have it) but I wanted to give it a try for the...
20 days ago | 0
| accepted
help with a heat map
hello there are a couple of interesting Fex submission : special heatmap - File Exchange - MATLAB Central Matrix Visualizat...
23 days ago | 0
simulink time stop error?
I believe you should change the landing test force_b >0 should be more like : force_b <0.1 otherwise the output is true fo...
28 days ago | 0
I'm trying to come up with the workspace for my 3RRR pkm via discretization method. Solid edge is used to validate and code seems to be generating an overestimated workspace
hello I tried to reduce the error by using a more precise area computation aproach using polyarea I had to modify a bit your ...
28 days ago | 0
Making a table from data using rec
hello here you are what has changed q must be converted from table to array - use table2array for loop index needed a fi...
29 days ago | 0
Function output not displayed on scope.
hello again assuming dt = 0.02 is your application sampling rate and this is what we use in Simulink solver options (discrete ...
1 month ago | 0
| accepted
1) Generate intermediate points in a set of X,Y while respecting the original points order. 2) Generate same number of points for 2 different set of X,Y with different sizes.
my turn to try something... with the help of interparc : interparc - File Exchange - MATLAB Central NB that nothing forces th...
1 month ago | 3
| accepted
Polarplot draws unwanted lines to origin when envelope is not full circle (0–360°)
hello seems to me that your data shoud NOT be sorted by angle. Of course this means you have to have the data ordered so that ...
1 month ago | 0
| accepted
How to measure similarity between FRFs in MATLAB
hello Abo perhaps you could use correlation-based similarity? visually there is quite a good match even though the curves diff...
2 months ago | 1
| accepted
How can I change Center Line, LCL, and UCL linestyles in controlchart for xbar and R charts.
hello Peggy maybe try this % Example: Create a control chart data = randn(30,4); % Example data controlchart(data); % Ac...
2 months ago | 0
How do l increase the process gain by a factor of 10 and the time constant by a factor of 10
hello you simply need to change the numerator and denominator values double click on the process block and change : numera...
2 months ago | 1
How to save a mixed data (strings and integers) from workspace into a matlab data file?
hello To save all variables in the current workspace to a .mat file: save('filename.mat') You can load the saved workspace la...
2 months ago | 0
Adaptive PID Controller For DC Motor Speed Control
hello maybe this ? clc clearvars % To control the speed of a DC motor using an adaptive PID controller in MATLAB, you ca...
2 months ago | 1
| accepted
how to time shift a set of data?
so this is what I tried in order to time shift the 12th voltage vs the others find the indexes for the last sample above 3.6 V...
2 months ago | 0
| accepted
How do I hold a value in Simulink for the rest of the simulation time?
hello this would be my suggestion , using only a delay (or memory ) block associated with a conditionnal block when t>= you...
2 months ago | 0
| accepted
box plot from timetable data
hello Giulia you can do a box plot directly with timetable data example : % Create a sample timetable time = datetime({'...
2 months ago | 0
| accepted
Group multiple lines to one "object" and be able to "toggle" on or off
hello To group multiple lines into a single "object" in MATLAB, you can use a hggroup or hgtransform object. here your code...
2 months ago | 0
| accepted
How to interpolate 10 csv files with different x,y,z into a common grid and average them in MATLAB?
hello again this would be my suggestion : once we have loaded all the data , we can see the shape looks pretty much like a p...
2 months ago | 1
| accepted
How to generate a torus structure in MATLAB similar to Minecraft builds?
hello Sarah maybe this ? to create the initail mesh I used this fex submission : Mesh/Voxel spheres, ellipsoids, toroids, an...
2 months ago | 0
Finding peaks and valleys, and associated indexes, of time-shifted noisy sinosidal waves
Following my first comment above , this could be another approach extract blocks of data (you need to find the start and stop ...
2 months ago | 1
Selecting smaller grid from a grid to create a video
hello Andrew see this code demo to read the video , extratct each frame then crop the unwanted borders and save back to a vide...
2 months ago | 0
| accepted
How to populate tiles using the next tile command with a variable number of data and a variable number of plots
hello seems to me the question is more about how to prepare / concatenate your individual data - either something very simpl...
2 months ago | 0
| accepted
