Risposto
Speed up Some Code
% generate and collect all the P's first nJ = numel(J); P = cell(1,nJ); for ii = 1:nJ P{ii} = randperm(k,J(ii))+1; end ...

oltre 2 anni fa | 0

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how to aviod the two loops
[X,Y] = meshgrid(x,y); A = [X(:),Y(:)];

oltre 2 anni fa | 0

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how to use "range" in uislider
s = uislider(fig,"Limits",[1 50]); <https://www.mathworks.com/help/matlab/ref/matlab.ui.control.slider-properties.html>

oltre 2 anni fa | 1

Risposto
str2num is returning and empty matrix: []
You don't need to use cell2mat; just use curly braces to get the contents of a cell in a cell array. For example: datetempDat ...

oltre 2 anni fa | 0

Risposto
str2num is returning and empty matrix: []
There may be a character you don't see, at the beginning of the file, which is included by importdata at the beginning of the fi...

oltre 2 anni fa | 0

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Risposto
How do i extract a column from an array
This stores the 3rd column of the array A as Col1 (and displays Col1 in the command window): Col1 = A(:,3) Is that what you wa...

oltre 2 anni fa | 0

Risposto
graph multiple excel or csv files
% get info about the (4) files S = dir('*.xlsx'); % construct full path file names filenames = fullfile({S.folder},{S.name}...

oltre 2 anni fa | 0

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Risposto
Different Output value of Functions
Implementation 1 has x*y^2 in the third term; Implementation 2 has x1*x2^3 in term3. f_value = (1.5- x+ x*y)^2 + (2.25 - x + x*...

oltre 2 anni fa | 0

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Risposto
Placing transparent rectangles on top of a plot
It's hard to say for sure what the problem is without the data, but one problem might be that the axes Y-Limits are outside wher...

oltre 2 anni fa | 1

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Risposto
How do I use only one legend entry for sets of xlines?
One way is to explicitly state which line objects to put in the legend, in the call to legend. For example: subplot(3,1...

oltre 2 anni fa | 1

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Risposto
Plot two areas of logarithmic plots
load('data_x.mat') figure; plot(x1,y,'b','Linewidth',1); hold on; plot(x2,y,'r','Linewidth',1); set(gca,'xscale','log','...

oltre 2 anni fa | 0

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Risposto
Variable Browser Tab Issue
It looks like the Variable Browser for that particular variable became undocked. See the following answer for how to dock it aga...

oltre 2 anni fa | 0

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Risposto
Need help in MATLAB tiled layouts (nested)
Something like this? t=tiledlayout(2,2); [X,Y,Z] = peaks(20); % Tile 1 t1=tiledlayout(t,1,2); nexttile(t1) surf(X,Y,Z) ne...

oltre 2 anni fa | 1

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Risposto
how to create array datetime
load matlab_A A hh = floor(A(:,4)/100); mm = mod(A(:,4),100); ss = zeros(size(A,1),1); B = [A(:,[1 2 3]) hh mm ss]; D ...

oltre 2 anni fa | 1

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Risposto
Overlaying three functions on a single plot
To avoid the error, use element-wise multiplication (.*), because * is for matrix multiplication. https://www.mathworks.com/hel...

oltre 2 anni fa | 0

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Risposto
>> qardl(data, ppp, qqq, tau) Unrecognized function or variable 'data'.
To run this function, you'd need to supply the inputs data, ppp, qqq, and tau. These are described in the comments at the top of...

oltre 2 anni fa | 0

Risposto
Why does the tiledlayout keep the whitespace between tiles although TileSpacing is 'tight'
I guess the "tiled" part of "tiledlayout" implies that all contained axes are the same size and that the amount of space between...

oltre 2 anni fa | 0

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Risposto
Crashing on size(img)
You have a variable called "size". If this is a script, do clear size and then run the script again. If this is a ...

oltre 2 anni fa | 1

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Risposto
Sort Table Variable with Cell Arrays
t = table(t1,t2); [~,idx] = sort(t1(3:end)); t = t([1; 2; 2+idx],:);

oltre 2 anni fa | 0

Risposto
Why is my code seemingly ignoring some of the for loop commands?
d is computed anew on each iteration of the for loop; thus after it's done the result you see is the last d that was computed, e...

oltre 2 anni fa | 1

Risposto
Error due to not enough input arguments in ' C_c = cold.m_dot_c*Cold.c_p_c; %W/K '
The function find_UA expects two inputs. If you provide fewer than two inputs (e.g., by clicking the green Run button in the MAT...

oltre 2 anni fa | 0

Risposto
How can I display a line in 3D with a colour gradient?
n = 10; x = linspace(1, 2, n); y = cos(x); z = y.^2; points = [x' y' z'] surf(points(:,[1 1]),points(:,[2 2]),points(:,[3...

oltre 2 anni fa | 2

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Risposto
Timer function to refresh the data
Make timerObj an app property so that the functions within your app can access it. properties (Access = private) timerObj ...

oltre 2 anni fa | 0

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Risposto
using bar3(z) to plot in unusual data visualization
red_data = [ 5 5 20 35 15]; blue_data = [30 25 20 15 5]; green_data = [30 25 35 5 5]; Nr = numel(red_data); Nb = nu...

oltre 2 anni fa | 0

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Risposto
Removing empty cells from cell array with multiple rows while preserving the rows
C = { ... 'Right knee','Head','Elbow/forearm',[]; ... 'Hand/wrist',[],'Pelvis',[]; ... [],[],'Ankle/foot',[]; ......

oltre 2 anni fa | 0

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Risposto
How code with for loop to get an array?
You can make I a 3D array of size Nx-by-Nx-by-numel(F). clc;close all;clear all; lambda = 532; k = 2*pi/lambda; z=[1.037000...

oltre 2 anni fa | 0

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Risposto
Why is this dot notation used?
.' is transpose, and ' is complex conjugate transpose, so when x is real, x.' and x' are the same. Example, real x: x = magic(...

oltre 2 anni fa | 0

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Risposto
Input folders or files contain non-standard file extensions.
The error is happening on this line: ads = audioDatastore(output_dir, ... 'IncludeSubfolders',true, ... 'LabelSource'...

oltre 2 anni fa | 0

Risposto
Pass variable name through variable of a custome save function made error
In saveModel, the variable model is a string variable containing the name of the struct variable you want to save, right? The p...

oltre 2 anni fa | 0

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Risposto
How to use my Line and Collum in Excell as X and Y for my graphic?
xlim(x([1 end]))

oltre 2 anni fa | 0