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Aligning 2 Signals as a function of third signal
I am not certain what you want to do. See if the alignsignals function will do what you want. Another option may be findsign...

5 years ago | 0

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Answered
Making a 2d scatter plot with multiple data sets and color map
Use the third argument of scatter to determine the size of the points, and the fourth argument of scatter to determine the colou...

5 years ago | 0

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How do I plot my differential equation on Matlab?
Of copurse it’s going to be a straight line! After evaluating the functions, look at ‘(tval,Vp)’ and ‘(tval2,V)’. They are al...

5 years ago | 0

Answered
How to Overlay Curve Fit Over Bar Plot Without Overriding Data?
Include the independent variable ‘Year’ in the bar call, and change the xlim values: Year = 2013:2019; Video_Cost = [11.09, ...

5 years ago | 1

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Answered
How to plot specific range of values in a plot?
Perhaps: plot(X([2:5 7:end]),Y([2:5 7:end]),'ko') Create vectors with specific values by enclosing them in square brackets []...

5 years ago | 0

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Answered
Please assist! Z1= exact solution; Z2= approximate solution. Now i want to plot a 2D graph of the exact and approximate solution in ONE graph to campare the results
Try this: alpha=1; t=0.004; [x,t] = meshgrid(-4:.1:4, 0.1:.2:0.4); exact=(sech(x/4-t/4)).^2; f0=(sech(x/4)).^2; f1=(s...

5 years ago | 0

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Answered
Ode 45 / Ode xx: Solve time depending system of equations (2nd order)
The clear and clc calls are not necessary, global variables are never advisable, and the syms call is also not necessary. Creat...

5 years ago | 1

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Reorganization of experimental data
The data file you attached does not appear to bear a strong resemblance to the data file you quoted. I chose to use textscan ...

5 years ago | 0

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Answered
Finding the intersection points between two curves
Several options — h=20; K=13.6; l=1148e-6; f1 = @(beta)tan(beta*l); f2 = @(beta)2*h*beta*K./(K^2*beta.^2-h^2); figure ...

5 years ago | 0

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Answered
How can i calculate PDF and CDF of non-parametric distribution?
I am not certain what your data are. If ,they are appropriate for the function, I would begin with the ecdf function, since it ...

5 years ago | 1

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Answered
Issue solving a non-linear differential equation in Matlab
‘Am I wrong?’ No. The result is not always as simple as it might be. In R2021a, the Symbolic Math Toolbox apparently simp...

5 years ago | 0

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Answered
isosurface with wall thickness
There does not appear to be any way to change the thickness of the plotted surface. The best I can come up with is the revise...

5 years ago | 0

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How can I plot integral of this equation?
Try something like this — % clc; figure('color','white'); while(1) sigma.phi=input('Enter 0.1 in a.u.: '); mu=input('Enter...

5 years ago | 0

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Answered
How to find and chart the frequency of a letter in column with histogram.
Perhaps — Col = {'HFHFHSHHAJHJA'; 'HSAJHFGFSAGJ'; 'HSGHSFFJHJ'}; T = cell2table(Col) RowSum = cellfun(@(x)sum(x=='H',2),T{:,...

5 years ago | 0

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Error with find(X) statement
Taking a wild guess, since the test is: states=find(sum(UNITARY_MATRIX)~=1.0) it is likely encountering floating-point approx...

5 years ago | 0

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Answered
vector gives 0 integral
There quite definitely is! In your call to it: sd = trapz((z),0,20) the function interprets ‘z’ (the parentheses aren’t n...

5 years ago | 0

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Answered
How to shade/color overlapped area in the graph?
I honestly have no desire to download ‘plotxx’ and learn its intricacies, so I used yyaxis instead here. The same approach sh...

5 years ago | 2

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Answered
Create line between plot points
Yes. x = [0 10 20 30]; y = [355 433 510 590]; figure plot(x, y, '*-r') grid Ax = gca; Ax.XMinorGrid = 'on'; Ax.YMino...

5 years ago | 0

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Answered
plotting a phase plane with a system of linear diff equations.
Using the numeric ODE solvers, likely the easiest way to do that is to use odeset to set options, and then choose 'OutputFcn', @...

5 years ago | 0

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Answered
Why am I getting a Parse error for a sequence?
It’s missing an equal (=) sign: for it = 1:MaxIt %this starts 'for' loop and runs for MaxIt times. .

5 years ago | 1

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Is there any way to do LFIT (general linear least-squares fit ) on the time series data using MATLAB?
That depends entirely on what you want to do. One approach: syms a b c d e f g t y = a + b*t + c*t^2 + d*sin(2*pi*t) + e*...

5 years ago | 0

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Problem with reshape and Surf plot
The only solution I can propose is to use either griddata or scatteredInterpolant . Try this — opts = detectImportOptions('...

5 years ago | 0

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Answered
how to sort table by row sub-string values?
Try this — wellname = {'01A58' rand; '01A59' rand; '01A62' rand; '01A63' rand; '01A66' rand; '01A58' rand; '01A59' rand} well...

5 years ago | 0

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Answered
What is the frequency of my signal?
Try this — LD = load('Frequency.mat'); t = LD.t; CH0 = LD.CH0; Fs = 0.1; ...

5 years ago | 1

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Answered
how to do average over third dimension?
Taking a slightly shorter example, try something like this — % ucom = randi(9,21,41,24); ucom = randi(9, 3, 4, 24); sz_ucom ...

5 years ago | 0

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Answered
How to pre-allocate my loop for speed?
I am not certain what the problem is, however the preallocation would be straightforward: pk_seagrass = NaN(1,length(ping_time...

5 years ago | 1

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Answered
Find energy for each second of audio file
Use the buffer function: Fs = 44.1E+3; % Sampling Frequency s = randn(Fs*5.2,1); ...

5 years ago | 0

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Answered
Does anyone know why the second plot doesn't work?
Yes! In line #44, there is a hold off call, although no new figure call, so the subsequent plot overplots the existing plo...

5 years ago | 0

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Answered
function interpolation and root finding
Try this — points = [0.500000000000000 0.500000000000000 0.498097349045873 0.494452298903742 0.49...

5 years ago | 1

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Answered
Please someone help test run this Matlab code and debug it if possible. Please help a student
The ‘uexact’ variable does not exist, and there is nothing similar to it (for example by a different spelling, at least that I c...

5 years ago | 0

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