Star Strider

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15,364 total contributions since 2012

Hic sunt dracones!

PROFESSIONAL: Physician (M.D.): Diplomate of the American Board of Internal Medicine; M.Sc. Biomedical Engineering: Instrumentation, Signal Processing, Control, System Identification, Parameter Estimation

NON-PROFESSIONAL: Amateur Extra Class Amateur Radio Operator; Private Pilot, Airplane Single Engine Land, Instrument Rating Airplane; Gamer

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Answered
End to end plots
Try this: F = complex(rand,rand); % Use Actual Complex Value S = complex(rand,rand); ...

7 hours ago | 0

Answered
Plotting the data in the given file over time period and tabulating the results
I have no idea what you want the result to be. Try this: D1 = load('data.mat'); StateFrequency = D1.StateFrequency; Col...

8 hours ago | 0

Answered
How to plot cubic equations ?
Here is one approach: f = @(x,y) x.*y.*(x.^2+y.^2) - 47.3; figure fih = fimplicit(f, [-10 10 -10 10]); xv = fih.XData; ...

10 hours ago | 0

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Answered
Fit with an integral involved
Try this: function y = integralfit(b,Tv,R,nu,T0) % % % MAPPING: b(1) = E1, b(2) = E2, b(3) = Tstar, b(4) = Tdot f...

13 hours ago | 0

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Answered
standard deviation in errorbar
Not silly at all, however it may not produce the result you want. It might be more appropriate to calculate the errors as the...

15 hours ago | 0

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Answered
Heat Map Cell values display
The Font property appears to set this for the entire heatmap. It would likely be necessary to create your own version of the ...

15 hours ago | 0

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How to change the datapoints(extracted from a curve) into an array?
If you plotted the curve, you should already have all the data necessary to do the plot. What exactly did you plot, and how...

15 hours ago | 0

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Reaction kinetics parameter determination
See Parameter Estimation for a System of Differential Equations for a working example of how to do this correctly. Unfortuna...

1 day ago | 0

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Answered
Plot not generating graph
Do element-wise division in ‘L_to_D’: ratio= CL./CD; Then it works and the plotted curve appears!

1 day ago | 0

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Answered
Display format of numbers shown
The options are likely limited. See the Displayed Data section of the HeatmapChart Properties documentation to see what optio...

1 day ago | 0

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Answered
How to sum different cells of cell array
I would do something like this: C = {[1,2,3;4,5,6] [3,24,35;46,58,69] [10,2,3;24,85,6] [11,22,33;54,15,16]}; cat...

1 day ago | 0

Answered
How to plot y=(exp.^(sqrt(x)))./(x*x - x*(exp(x))).^(1/3);
Try these: x = linspace(-10, 10, 150); y = (exp(sqrt(x)))./(x.*x - x.*(exp(x))).^(1/3); figure plot(x, real(y), x, ima...

1 day ago | 0

Answered
What is wrong I have been getting errors that it is wrong
Try something like this: outputfcn = @(x,y) sin(sqrt((x.^2)+(y.^2)))./sqrt((x.^2)+(y.^2)); x = linspace(-10, 10, 25); y = li...

1 day ago | 1

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Answered
MATLAB 2020b fails to start in Windows 10
See if the solution in Why will MATLAB not start up properly on my Windows based system? - MATLAB Answers - MATLAB Central will ...

1 day ago | 1

Answered
i have number i need save only integer without any point or 'e'
I am not certain what you want to do. To change the way the numbers are displayed, change the format options to display the n...

1 day ago | 1

Answered
How can I find the baseline of signal?
See if the min function will do what you want. If you want to plot a horizontal line indicating the minimum, and if ‘y’ is ...

2 days ago | 0

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How to shade the area between two mirror curves using patch?
I am not certain how ‘C_1’ and ‘C_2’ were created, however this is one approach to filling the space between them (creating them...

2 days ago | 1

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Answered
runge-Kutta problem command ode45
I have no idea what you want to do, or what ‘x’ and ‘y’ are. This will get you closer to an actual result: tspan = [0 5]; ...

2 days ago | 0

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Answered
lsqcurvefit: Local minimum possible... but clearly visible minima
If you have the Global Optimisation Toolbox, many of those functions (ga is my favourite) will search the entire parameter space...

3 days ago | 1

Answered
Using OR between elements in vector or antithesis of any(x)
Not certain what you wnat. Try these (the any call is there for comparison only): x = randi([-5 5], 1, 10); TF1 = any(x ==...

3 days ago | 0

Answered
Obtaining line equation having multiple points
The polyfit (and polyval) functions may be what you want. There are other options, however these are likely the easiest to us...

3 days ago | 0

Answered
how to fix the error ''Conversion to function_handle from double is not possible.'' for the below 3Eq euler matlab code
First, name the variables slightly differently from the function names, second define the initial conditions to conform with tho...

4 days ago | 1

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Answered
how to color in between curves the two graphs?
It’s not possible to run images of code, especially images of incomplete code. Try this example: x1 = linspace(-0.1, -10, 3...

4 days ago | 0

Answered
Show numbers with Grouped Bars
Try this: x = [98 96; 142 52; 42 42]; hBar = bar(x); for k1 = 1:size(x,2) ctr(k1,:) = bsxfun(@plus, 1:numel(hBar(k1).XD...

4 days ago | 0

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Answered
How to fit this curve?
The best model is the mathematical expression of the process that created those data. A power law fit appears to provide a re...

4 days ago | 1

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Answered
Import text files with extensions other than .txt
Use detectImportOptions to tell readtable to read the file as a text file. One recent example from an earlier Answer: opts ...

4 days ago | 1

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Answered
± use in MATLAB
One option: CL = [(0.331+0.008) + (0.15+0.002)*ALPHA (0.331-0.008) + (0.15-0.002)*ALPHA]; Experiment to get differen...

4 days ago | 0

Answered
when i plot my figure doesnt show line
Use a colon to create the vectors instead of a semicolon, and be sure the vectors are equal length: x = 1:5; y = 5:9; plot...

4 days ago | 0

Answered
How to create a Symbolic vector
Try this:: n = inputdlg('Enter the length of the vector (integer): '); n = str2double(n); syms x x = sym('x',[1 n]) pro...

5 days ago | 0

Answered
1D interpolation by y = ax+b
To set the start point at the origin (0,0), calculate the slope as: slope = x(:) \ y(:); for example: x = 0:0.1:10; y = ra...

5 days ago | 0