Turlough Hughes

Last seen: environ un an il y a | Actif depuis 2019

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Code to assign correlation values from a correlation matrix to a column vector
You're almost there - use the loop variable, ii, to index into cors as follows: sz = 1000; iters = 10000; cors = zeros(iters,...

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How to use dir function with customized number of folders
You can do the following: p = dir('C:\Username\myfolder'); dateStringFromFilename = regexp({p.name}.','\d{2}-\d{2}-\d{4}','mat...

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what's the meaning of 'minprominence' in islocalmin or islocalmax function?
Given that I don't have your dataset, I'll use the following data to help demonstrate how prominence is calculated: x = 0:0.01:...

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Sum groups of columns
Here's another option: a = rand(10,4600); b = mat2cell(a,height(a),repmat(50,1,width(a)/50)); result = cellfun(@(x) sum(x,'...

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App Designer Tab name xlsl
Have a look at your component browser in the app designer, and you'll see app.Tab1 or something similar (as shown above). Cl...

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Can figures or menues open up without app designer's objects placed on the canvas?
Your figures will open up outside the app canvas - and if you're wondering, they will also generate outside the app's canvas wit...

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Accessing User Data in Standalone App
You can store image paths in a property in your app (see imageFiles in the attached .mlapp file) and then use that to load the i...

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What should go in a next-generation MATLAB X?
When using the debugger, I would love to have a button to Step (run the next line) and display output regardless of the ; being ...

presque 2 ans il y a | 1

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Read data from text file. Tables with uneven number of rows
fid = fopen('t1.txt'); c = 1; while ~feof(fid) d = fgetl(fid); if ~isempty(regexp(d,'X.*Y.*Z.*Energy', 'once')) ...

plus de 2 ans il y a | 0

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How to image one text file from many
You could use imagesc or imshow(___,[]) as follows: dataImage = randi(1000,100,100,5); % example data you could have for dataIm...

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Graphing a For Loop Array
i can either be the index or a value that you use on the RHS of your equations but typically not both. To fix your code you coul...

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How can Windows 10 user account info be accessed through Matlab
You could try system as follows: [~,info] = system('whoami'); [~,info] = system('net user'); % another possibility

plus de 2 ans il y a | 0

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How to set names to each colunm and row using "writematrix"?
You can use writetable for this as follows: B = rand(100,13); Labels=["Irr", "SOC", "PVHarvest", "Mecons", "ElecEne", "PVen", ...

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Im trying to find the zeroes of the two lines on the graphs I've made
If you have the mapping toolbox then polyxpoly is very handy for this. For example: x = linspace(-1.5*pi,1.5*pi,1000); y = sin...

plus de 2 ans il y a | 0

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Jump Discontinuity Functions Open and Close Circle
My preferred approach is to use fplot as follows: clc, clear figure(), hold on axis ([-10 10 -10 20]) fplot(@(x) x.^2, [-p...

plus de 2 ans il y a | 1

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I need help on finding the max & min values of a 3d array.
From the documentation for max: M = max(A,[],'all') finds the maximum over all elements of A. This syntax is valid for MATLAB...

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Find and remove equal element in 2 different cell with different size
% Your sample data A = {[100,103,104],[4,5,11],[66],[4,5,1],[85,88,89,77]}; B = {[40,41,41],[4,5,11],[68],[85,88,89,77],[31,66...

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How to add a new column in a table and then write on a file only some columns?
I like to use addvars and removevars for this: T = readtable('https://uk.mathworks.com/matlabcentral/answers/uploaded_files/887...

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How can I average the vectors within the grid cell?
% code provided in the question [X,Y] = meshgrid(0:6,0:6); U = 0.25*X; V = 0.5*Y; [Xq,Yq] = meshgrid(0:0.25:6); Uq = interp...

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How can I make a bar graph using only max/min values with std dev line on both ends?
x = rand(10,3); boxplot(x); Normally (at least for most other plot functions) you could do this sort of thing with a name-valu...

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How to find elements in an array faster / without using for loop?
In the example you provided you aren't actually storing any of the indices. It is also important to consider that you will get r...

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Open multiple timetables within an array into one matrix
Let's call the cell array data, then you can vertically concatentate as follows: oneBigTable = vertcat(data{:}); If you want i...

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How to find out if a logical array is all zeros?
One way: ~any(x)

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how to find zero value with find
Try the following: find(BC==0) or find(~BC)

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I am trying to display multiple lines of centered text
Here's one way: t = ["On a scale of 0 to 8, how much control did you have over the target circle?"; "0 = no control & 8 = ...

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Assign NaN to specific rows(based on criteria) for multiple table variables
You can do that as follows: % Firstly some sample data T = array2timetable(randi(3,10,5),'Rowtimes',datetime() + seconds(0:9))...

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How can I incorporate the angle of orientation in my colourmap?
To represent the orientations with arrows, you could a quiver plot as follows: %Import the data data = readmatrix('https://uk....

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How do I juxtapose the two plots so that the circles indicating the peak amplitude is in contrast with the plot?
You need to include t in your call to findpeaks. For example: t = linspace(0,1,1000); Ca = t./exp(t).*(1-sin(2*pi*t*20)); p...

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How to interpolate data in cells?
As follows: S_or_x_cycle2 = cellfun(@(x) interpft(x,100), S_or_x_cycle, 'uni', 0)

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Sort Matlab table based on pre-defined order
Try the following: idx = [2 1 3 4]; T(idx,:) = T

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