Answered
How can I find the matrix where column should be specific value?
Use ‘logical indexing’ — A = rand(15,2); B = A(A(:,1)>= 0.5 & A(:,1)<=0.512, :) Experiment with this with your matrix. .

3 years ago | 0

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Converting probability distribution plot into a histogram
It would definitely help to have more information, and specifically the code and data that created that plot, in order to experi...

3 years ago | 0

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Curve smoothing in MATLAB
One option would be a lowpass filter, assuming that the independent varialb is regularly sampled. First, calculate the Fourier ...

3 years ago | 0

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Measure wavelength of a signal using PSD
Try this — figure imshow(imread('Screenshot 202... 16.25.00.png')) T1 = readtable('stan.xlsx') stan_18p3 = T1.stan_18p3; ...

3 years ago | 0

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Answered
Unable to change the height of the barh.
The tiledlayout plots will not let you do that, however subplot will. Try this — figure y=[67 147-67 1073-147 3456-1073 50...

3 years ago | 0

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Answered
Why is my code producing a 0's at the 11th Column
Could it be because that is how you defined it? xi = 0.01:0.01:0.2; pe = linspace(1,1.5,100); p = zeros(length(xi),length(p...

3 years ago | 1

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Creating a custom plot layout with data from multiple sources
I am not certain what you want to do. See if the animatedline function will work.

3 years ago | 0

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Bode Plot to Transfer Function
If you have the System Identification Toolbox, this is (relatively) straightforward, however your data requires a bit of pre-pro...

3 years ago | 2

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Answered
How to identify the month number and year number for one string with moth/day/year format?
Try this — DT = datetime('1/12/2022', 'InputFormat','MM/dd/yyyy') MonthNr = month(DT) YearNr = year(DT) .

3 years ago | 1

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Answered
problem about precision in matlab
If the numbers are all greater than zero, calculate the log of each and compare that. Remember that subtracting logaritms is es...

3 years ago | 0

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Choosing Initial values for non-linear fitting and running Genetic Algorithm
V = readmatrix('volt.csv'); Phase = readmatrix('phase.csv'); F= @(a,V) a(1).*(a(2) - a(3) - (a(2).*a(4))./(a(2).^2.*cos(...

3 years ago | 0

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Answered
Display time as Day, Month Year
I experimented with a few conversions, and 'posixtime' is the only one that producs realistic results. Try this — TN = [725...

3 years ago | 0

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Answered
Using interpol 2 code
If you want to upload it, first use the zip function and then upload the .zip file. That aside, see if the Mapping Toolbox in...

3 years ago | 0

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Error using strfind Conversion to double from table is not possible.
It is apparently not an actual datetime variable (array). Instead of searching for the ‘T’ occurrences, convert it to datetime ...

3 years ago | 0

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Answered
how do i find the derivative dT/dx at certain coordinates?
Use the gradient function to calculate the numerical derivative. It works with matrices as well as vectors, and getting the der...

3 years ago | 0

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Matlab bar chart plotting issue
Recent MATLAB releases can return the (x,y) coordinates of the bar end points. Using those, the result improves considerably ...

3 years ago | 2

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how do i use the digital design filter to create a filter for baseline wander in ecg signals?
I would just use the highpass or bandpass functions, iwth the 'ImpulseResponse','iir' name value pair for the most efficient fil...

3 years ago | 0

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How to combine 2 Matlab figure plots?
Perhaps — F = openfig('test_combine.fig'); Lines = findobj(F,'Type','line'); for k = 1:numel(Lines) x{k} = Lines(k).XDa...

3 years ago | 1

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Answered
How can a single line plot have two colors?
Use ‘logical indexing’: figure imshow(imread('plot.JPG')) title('Original Function') range = linspace(0,100,500); s_atte...

3 years ago | 1

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Answered
how can I find points in specific cell without 'for' loop?
Without knowing the details of the cell array, the cellfun function is likely the moist appropriate option. It avoids explicit ...

3 years ago | 0

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Plotting issue: wrong plotting output when number of rows equals number of columns
Plotting a square matrix may require that the orientation is also specified, for example transposing it. It depends on how the ...

3 years ago | 0

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creating cell array using find command
The find function is not necessary in this instance. Use ‘logical indexing’ to accomplish the same result without the find call...

3 years ago | 0

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How to envelope a FFT dataset?
It depends on what you want to do. The Signal Processing Toolbox has the envspectrum function that can do this, however the si...

3 years ago | 0

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Answered
skip items in a legend
Perhaps this — x = 0:10; y1 = randn(size(x)); y2 = randn(size(x)); y3 = randn(size(x)); figure hp1 = plot(x, y1, 'Displ...

3 years ago | 2

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Answered
ODE for frequency response
This takes a while to run, so I used relatively coarse mesh intervals (for ‘tspan’ and ‘omega’) to run it here. Experiment wi...

3 years ago | 2

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Answered
How to draw yline on yyaxis on right hand axis?
I don’t have your data, however in this simulation it seems to work correctly — x = 0:10; y1 = randn(size(x)); y2 = randn(s...

3 years ago | 0

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Is there a way to fit experimental data to a set of x,y points?
Hankel functions are new to me, so I looked this up. Wolfram MathWorld a has a description: ...

3 years ago | 0

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Answered
How do I access sub-columns in table
Try this — I = [1 2 3; 1 2 3;1 2 3]; J = [4 5 6;4 5 6;4 5 6]; K = table(I,J) VN = K.Properties.VariableNames; I1 = table...

3 years ago | 0

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plot3 command error in dlode45
The problem is that ‘y’ is a dlarray (the first time I’ve encountered one so I need to start working with the Deep Learning Tool...

3 years ago | 1

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Answered
converting indices into time
Try this — F = openfig('figure1.fig'); Lines = findobj(F, 'Type','line'); tidx = Lines.XData; speed = Lines.YData; Fs = 3E...

3 years ago | 0

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