Domanda


Get coordinates of points from an image
Hello, I would like to know how to obtain the coordinates of p number of random points from an image: how to call an image ( d...

oltre 5 anni fa | 2 risposte | 0

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Domanda


Subtraction matrix for all values
column 1 - column 2; column 1 - column 3; column 1 - column 4...(rest of subtractions)..olumn 4 - column 4. How would I appr...

oltre 5 anni fa | 1 risposta | 0

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Domanda


Not sure how to solve equations using newton-Raphson method
Can anyone help me solve these two equation using newton-raphson method 5/2*cos(x(1))+3*cos(x(1)+x(2))-5 5/2*sin(x(1))+3*sin(x...

oltre 5 anni fa | 1 risposta | 0

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Domanda


Does anyone have any resources for modelling a distribution network and charging an electric vehicle from it
I want to do a project that solves an optimisation task for Electric Vechile charging from the Low-Voltage power network. Howeve...

oltre 5 anni fa | 1 risposta | 0

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Domanda


Filenames in MATLAB - directory
Hello, So currently, what I'm doing it's prompting out window to select folder, I then was thinking of using a foor loop that ...

quasi 6 anni fa | 1 risposta | 0

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Domanda


Export_fig - Ghostscript program not found
Hi, I downloaded the export_fig zip from https://github.com/altmany/export_fig named 'export_fig-master'. I unzipped the fil...

quasi 6 anni fa | 1 risposta | 0

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Domanda


for loop with a spread
Hi guys, I wanted to get an idea on how I should approach a problem. Say for example I have a 100x48 matrix and I want to get ...

circa 6 anni fa | 1 risposta | 0

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Domanda


How to display images from nifti file format in Matlab?
I have a COVID-19 CT segmentation dataset where all images are in .nii file format. Each image file has mulitple slices (512*51...

circa 6 anni fa | 1 risposta | 0

1

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Domanda


is it a normal display of the command window on MATLAB for window? and how to fix if it needs attention?

circa 6 anni fa | 1 risposta | 0

1

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Domanda


String scalar or character vector must have valid interpreter syntax.
I want to add: ylabel('$\mid H(f) \mid$ (kg{s^{-1}}/kg{s^{-1}})', 'interpreter', 'latex'); Where I want the first part ins...

circa 6 anni fa | 1 risposta | 0

1

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Domanda


reinforcement learning toolbox ---fail to train stores saved agents in a MAT-file in the folder
%% Train Agent doTraining = false; if doTraining % Train the agent trainingStats = train(agent,env,trainOpts);...

circa 6 anni fa | 1 risposta | 0

1

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Domanda


String scalar or character vector must have valid interpreter syntax.
I want to add: ylabel('$\midH(f)\mid$ (deg/m)', 'interpreter', 'latex') error: String scalar or character vector must have va...

circa 6 anni fa | 3 risposte | 0

3

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Domanda


Cannot plot iterations.
I'm trying to plot iterations but it doesn't seem to be working. The figure pops up but no points do. This is confusing because...

oltre 6 anni fa | 1 risposta | 0

1

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Domanda


How to find settling time?
Hello I want to be able to find the time taken (number of frames) for each of the peaks to reach the new stabilising value in ...

oltre 6 anni fa | 1 risposta | 0

1

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Domanda


How to locate significant points in a graph?
Hi So I've plotted a graph of two variables from a 118000x2 matrix: Frames and Conductivity. I've attached a picture of the gra...

oltre 6 anni fa | 1 risposta | 0

1

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Domanda


4d plotting with slices
Hello :) I have 4d data (x y z coordinates and and V). I am hoping to represent the data similar to the slice function approa...

oltre 6 anni fa | 1 risposta | 0

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Domanda


Plot 4d data
hi :) how can one import an excel sheet with x, y, z and V columns as a 3d matrix? I am trying to plot the V values over a co or...

oltre 6 anni fa | 1 risposta | 0

1

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Domanda


Trouble with MATLAB Triple Integral
I'm attempting to evaluate this integral (and equation) where 'a' and 'x' are just inputs, and x' is (x,y,z). also: x will hav...

quasi 7 anni fa | 1 risposta | 0

1

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Domanda


Beginner MATLAB question (I just started using matlab a week ago)
Please help give the function to solve this. Thank you

oltre 7 anni fa | 1 risposta | 0

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Risposto
Dummy Variable ased on categorical vars in table
Thanks!! Now I tried Data.DV = zeros(27,1) for x = 1:27 if strcmp(Data(x).BS, 'Total assets') Data.DV(x) =1; ...

oltre 7 anni fa | 0

Domanda


Dummy Variable ased on categorical vars in table
hi everyone! I'm tying to create a dummy variable in a table based on two categorical variables. My table contains numerical a...

oltre 7 anni fa | 3 risposte | 0

3

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Risposto
Needed frequency analysis of 3D Plot obtained from Manometry of Human colon using wavelet analysis.
One approach for this problem would be split the data into two components, i.e. sensor position as a function of time and amplit...

quasi 8 anni fa | 0

Domanda


I have code which calculates the electric potential due a single charge. The results are concentric circles (Correct results) but don't match the theoretical data
Here is the code clear all; close all; clc; Nx = 11; %% Dimension of x axis Ny = 11; %% Dimension of x axis eps0 = 8.85e-12...

circa 8 anni fa | 1 risposta | 0

1

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Domanda


Lock scroll position when continuous uitable updates
Hi, I have a uitable that has a live data subscription that is being refreshed every x seconds. However, if you are scrollin...

circa 8 anni fa | 1 risposta | 0

1

risposta

Domanda


Nested Tables and UI Tables. Using GUIDE UI figure.
Hi, I want to have an interactive figure with a ui table in it. However, I want to display the table such that: * Outer table...

circa 8 anni fa | 1 risposta | 0

1

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Risposto
Wavelet Webinar, example mistake!!!
This topic has been addressed here: https://www.mathworks.com/matlabcentral/fileexchange/59924-wavelet-tech-talks-matlab-cod...

oltre 8 anni fa | 0

Domanda


how can I remove the background this image , I do thresholding but I can't remove the background( I want only the dark object and determine their location) ?
<< <</matlabcentral/answers/uploaded_files/107126/bio1.jpg>> >>

oltre 8 anni fa | 1 risposta | 0

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Domanda


Subscript Indices must either be real positive intergers or logicals - not sure where i'm going wrong.
I am trying to call the RK4 function below in order to find the second initial value for my main function. However it gets stuck...

oltre 8 anni fa | 1 risposta | 0

1

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Domanda


What is a simple code for the chapman cycle involving only hydrogen and oxygen.This code should produce a curve but it only produces straight lines?
function Chapman_cycle y0= [2e17 1e-6 5e12]; tspan=[0 100]; %tspan=[0,1.0e-5,1.0e-3,0.1,0.5,1,2,4,6,8,10,20,30,40,50,...

oltre 8 anni fa | 1 risposta | 0

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Domanda


Hello can someone show me a simple code to show the earths orbit around the sun using ordinary differential equations.
function Earthsorbit e=2; y0=[1 2*pi 0 -pi]; tspan=[0, 10]; options = odeset('RelTol',1e-4,'AbsTol',1e-4); ...

oltre 8 anni fa | 2 risposte | 0

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