# Turlough Hughes

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**Content Feed**

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...

4 months ago | 1

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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:...

4 months ago | 0

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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,'...

4 months ago | 0

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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...

4 months ago | 0

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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...

4 months ago | 0

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...

4 months ago | 0

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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 ...

5 months ago | 1

Submitted

MATLAB-Binance-API

Suite of functions for accessing the Binance API via MATLAB. Supports spot and margin trading and all public endpoints.

11 months ago | 22 downloads |

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')) ...

12 months ago | 0

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...

12 months ago | 0

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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...

12 months ago | 0

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

12 months ago | 0

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", ...

12 months ago | 1

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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...

12 months ago | 0

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...

12 months ago | 1

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...

12 months ago | 0

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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...

12 months ago | 0

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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...

12 months ago | 1

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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...

12 months ago | 0

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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...

12 months ago | 1

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...

12 months ago | 1

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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...

12 months ago | 0

how to find zero value with find

Try the following: find(BC==0) or find(~BC)

12 months ago | 1

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 = ...

12 months ago | 0

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))...

12 months ago | 0

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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....

12 months ago | 1

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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...

12 months ago | 0

How to interpolate data in cells?

As follows: S_or_x_cycle2 = cellfun(@(x) interpft(x,100), S_or_x_cycle, 'uni', 0)

12 months ago | 0

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Sort Matlab table based on pre-defined order

Try the following: idx = [2 1 3 4]; T(idx,:) = T

12 months ago | 0