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Need for help for performance improvement or refactoring methods on this code
Wow! That code gets weird really fast. First, you haven't posted code that will actually run. You've shown three functions ...

1年以上前 | 0

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How can I break a long column vector (281820X1) into 140 short column vectors (2013X1)?
Use reshape data = (1:281820)'; cols = 140; rows = numel(data) / cols; data_reshaped = reshape(data, [rows cols]); whos ...

1年以上前 | 0

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How to include a negative number in initial conditions for Eulers method code?
It is always better to post example code as text rather than a screenshot. Nevertheless... Since the first element of x is -1 ...

1年以上前 | 0

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Plotting .mat file
That mat file doesn't contain anything interesting to plot. load metro.mat whos AudioInfo

1年以上前 | 0

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Load .txt file into matrix form
That looks like a good candidate for readmatrix. mtx = readmatrix('X_deg_10.txt'); size(mtx)

1年以上前 | 0

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what's the index exceed error?
On the second pass through the for k = 1:20 loop, you are trying to access the second row of sig, but it only has one row.

1年以上前 | 0

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How can I import this data with a for loop?
You were very close. x = [3 5 7 9 11 12 14 15 16 17]; for i = 1:numel(x) fn = sprintf('PendulumTestData/TD%d/IK/HR_1.mot'...

1年以上前 | 1

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Adding zeros to a column vector to match a larger column vector
new_x= [x; zeros(length(y)-length(x), 1)]; % ^ ^ switch the arguments to zeros % use ...

1年以上前 | 0

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Plots: aligning categorical y-axis labels
% create dummy data y = [1,2,3]; x = [5,10,20]; err = 0.5*ones(size(y)); % draw plot figure(1) yyaxis right errorbar(x,...

1年以上前 | 1

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Resolution of plot code errors
Why are you trying to do this with symbolic variables? It works using simple numeric variables. x = linspace(-5, 5, 500); y =...

1年以上前 | 0

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Issue with delete(obj)
Here are some modifications that should get you closer to what you wan't. Note the comments I've added in the code to point out...

1年以上前 | 0

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for loop does not iterate
Array indices in Matlab must be positive integers (or logical). You are trying to us xroots, a vector of complex numbers as the...

1年以上前 | 0

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How to save the result of each loop separately
Perhaps this (using a cell array)? y = [3 4]; for i = 1:length(y) x{i} = zeros(y(i), 2) end

1年以上前 | 1

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How would I plot this and then achieve minimum and maximum.
x = 0:0.1:15; % y=(x)^3/3-11(x)^2/2+24x << you were missing multiplication operators * % and the powers need to be .^ (element...

1年以上前 | 0

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Hexadecimal Data Convert to signed int32
The hex2dec function assumes unsigned integer unless you tell it otherwise. You can either typecast the unsigned result to sign...

1年以上前 | 2

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wildcard in filename for readtable does not work
You must call readtable with a valid filename for an existing file. It will not accept wildcards. You could use uigetfile to o...

1年以上前 | 0

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Indexing with min and numel
vector1 = 1:5 vector2 = 2:7 N = max(numel(vector1), numel(vector2)) [n,I] = min([numel(vector1),numel(vector2)]) I'm not sur...

1年以上前 | 1

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Code gets stuck loading when I try to run it.
In your SEGMENT 1 code you have this line where you are updating time (even though the comment says "Height Update"). I don't s...

1年以上前 | 0

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how to plot signals on the same scale
For the green one, just subtract the first element of the capacity vector from the entire vector in your plot command. For exam...

1年以上前 | 1

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how to obtain the data from the middle of the binary file using fread in MATLAB?
The second argument to the fread function is the size of the data to read, not an index, as you appear to be trying to use it. ...

1年以上前 | 0

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how to import file?
You were pretty close. Here is one approach, converting your third columns to arrays instead of extracting them as tables with ...

1年以上前 | 0

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While loop in function
Perhaps you meant to test the absolute value of epsilon_a? %known veriables syms x f(x) = exp(-x) - x; eqn = f(x) == 0; mat...

1年以上前 | 0

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Determine the relational operator in an expression
If you can rely on x always being on the left in your "test" expressions, you can test for y being on the left in the result ret...

1年以上前 | 0

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I want to plot parameters and time , with influence three others paramaters , but i dont know how to plot
Note that, in Matlab, functions must be defined at the end of a script. Your code seems to run just fine after reordering it. ...

1年以上前 | 0

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Piecewise function graph help
Use logical indexing: L = 200; d = 10; s = 30; r1_max = 22.36; r2_max = 120.4; r = 0:200; F = zeros(size(r)); idx ...

1年以上前 | 0

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how to zero pad a vector to have the same amount of data as a vector with more data?
Try this: %%% goal: to have the length of 'in' equal the length of 'verb' %%% define inputs [in, fs] = audioread('smash_...

1年以上前 | 1

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printing the name of the data containing a certain value in the workspace
a=10; b=20; c=30; d=40; reference=20; names = ["a", "b", "c", "d"]; [max_delta, idx] = max([a b c d] - reference); fp...

1年以上前 | 0

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XTicks change in tiled figure if no breakpoint is set before for loop, even if xticks are used
I can't explain why your approach didn't work, but this seems to work. figure tiledlayout(3, 3); percent = 0:100; ticks = 0:...

1年以上前 | 0

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How do i find x from given y that is closest to my peak or at x=0?
Have you tried interp1?

1年以上前 | 0

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Convert z to e^(-sT) in transfer function
If you have the Control System Toolbox you can use the d2c function to convert from the z domain to the s domain. Note that thi...

1年以上前 | 2