Turlough Hughes

Last seen: Today | Active since 2019

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

3 months ago | 25 downloads |

Answered
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')) ...

3 months ago | 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...

3 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...

3 months ago | 0

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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

3 months ago | 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", ...

3 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...

3 months ago | 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...

3 months ago | 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...

3 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...

3 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...

3 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...

3 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...

3 months ago | 1

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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...

4 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...

4 months ago | 0

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

4 months ago | 2

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

4 months ago | 1

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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 = ...

4 months ago | 0

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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))...

4 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....

4 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...

4 months ago | 0

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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)

4 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

4 months ago | 0

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Check if cell contains only certain combination of variables
You can do this with an "exclusive or" (see xor) where you check that you have exlusively either 'A' or 'B' xor 'C' or 'D', but ...

4 months ago | 0

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Divide the 3D feature space into grid and then get their labels
Example in 2D % Data x = rand(1,100)*10; y = rand(1,100)*5; r = zeros(size(x)); % group index r(x>0 & x<=5 & y>0 & y...

4 months ago | 1

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Reformat table with a column as a top row
You can reorganise the data pretty close to what you showed using unstack, but to get the header organised as you have shown wou...

4 months ago | 0

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How could I make a callback that updates when the user moves an roi?
This is what I had in mind: interactiveZoomDemo; function [] = interactiveZoomDemo() I = imread('saturn.png'); hf = figu...

5 months ago | 0

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How to decrease margins around uibutton in uigridlayout?
Use the ColumnSpacing property: g.ColumnSpacing = 1;

5 months ago | 0

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How to create rainbow colormap with violet
Violet is approximately [0.5 0 1] in the rgb space. So we can modify the blue part of the jet colormap, to have a bit more red ...

5 months ago | 0

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Save an image from a matrix
Here's one way - convert to an 8 bit array with values between 0 and 255 and then save: I2 = 255*(I - min(I(:))) ./ (max(I(:)) ...

5 months ago | 0

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