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Star Strider


12,860 2012 이후 총 참여 횟수

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

NOTE: I do not respond to emails or personal messages, unless they are about my File Exchange contributions.

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Finding index of closest value in an array of different dimension
I am not certain that I understand what you want to do. If you want to use the discrete timestamps, the ismembertol function ...

약 1시간 전 | 0

답변 있음
Fit Powerlaw to Data
Try this: STRESS = [0.574, 367.364, 449.112, 531.087, 596.241, 649.097, 695.038, 737.173, 815.008]; S...

약 5시간 전 | 0

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답변 있음
hwo to find inverse of marcum fuction
Try this: Q = marcumq(5, 10); % Create Output B0 = rand; ...

약 6시간 전 | 0

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I want to show the Magnitude response of three filters, as one response
It’s always worth experimenting. It seems that convolving the numerators and denominators of the individual filters is approp...

약 6시간 전 | 0

답변 있음
Variable plot title and legend
The easiest way is to use the sprintf function inside the title and legend, respectively. It also allows straightforward inclus...

약 7시간 전 | 0

답변 있음
Matlab considers different two equal numbers!
You are not seeing the entire picture. If you test ‘matrix(11,:)’: Check = matrix(11, :) - max(matrix(11,:)) the result is...

약 20시간 전 | 0

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Plot call does not do its work properly.
The plot call you posted has it only plotting the second output of ‘spring_mass_system’. It doesn’t show three lines because ...

약 21시간 전 | 0

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Finding a value and marking it in a graph
The only way I can see to calculate ‘M’ where ‘epss’ is equal to 0.009 is to duplicate the first nested loop, defining: epss =...

1일 전 | 0

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COnvert 3d matrix to 2D
The reshaped matrix has to be (36000 x 410). x = rand(1200,30,410); % Create Matrix y = reshape(x,[],410); You...

1일 전 | 0

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Error trying to plot circle
You apparently want to plot three different circles with different radii. This works: A = [10 8 2; 10 8 1; -2 9 1; 2 -1 1] ...

1일 전 | 0

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답변 있음
Marking a specific point in a graph made out of a loop
Try this: b=400; %mm d=500; %mm Asv = [3000 5000 3000 5000]; %mm^2 fckv = [30 30 90 90]; %Mpa tic for k = 1:numel(fc...

2일 전 | 1

답변 있음
Calculating the area under a curve using cell arrays
Try this: D = load('pwp_diff.mat'); dPWP = D.PWP_diff; tv = 0:size(dPWP,2)-1; tvi = linspace(min(tv), max(tv), numel(tv)*10...

2일 전 | 0

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답변 있음
How to retrieve first 4 digits after decimal point?
One approach: x = pi AfterDecimal = rem(x,1) FirstFour = fix(AfterDecimal*1E+4)*1E-4 producing: x = 3.141592653589793...

2일 전 | 0

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답변 있음
To arrange matrix based off criteria in column
Try this: Col1 = randperm(300); % Create Column 1 Col2 = randi(9, 1, 300); ...

2일 전 | 0

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답변 있음
Least squares fit/line fit for 3D data
For a linear regression, this is straightforward: B = [x(:) y(:) ones(size(x(:)))] \ z(:); % Linear Paramet...

3일 전 | 0

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How to find the time it takes till the first upward deflection of square wave pulse?
See if the midcross function willl do what you want.

3일 전 | 0

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How to plot this?
I am not certain what you want to plot, since you did not specify that. Try this: tideTime = linspace(0, 4*pi); ...

3일 전 | 0

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pzmap(G+G) produces incorrect plot
The ‘+’ operator connects the two ‘G’ models in parallel. They do appear to have pole-zero cancellation as the result: s = tf...

3일 전 | 0

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답변 있음
Dividing the values of a vector
Try this: A=[1 1.1; 1.1 1]; l = [2; 1]/3; % Create As Column Vector w=1; B=[1.09 ...

3일 전 | 0

답변 있음
Creating a Code to determine Lift Curve Slope
There are several problems with your code. You are only saving the last iteration of ‘A’, and since it does not appear that ‘...

3일 전 | 0

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답변 있음
Parallel form filter design
I am not quite certain what you want to do. To express your elliptic filter as second-order-sections, the Signal Processing T...

4일 전 | 0

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Getting a for loop to save a plot every step
Use the same equation and pass the different parameters as extra parameters in a loop. See the documentation secton on Passing ...

4일 전 | 0

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how to plot a conventional DSB AM signal
I am not certain how much help you need for this. For a start, see the documentation for the plot function. I am not certain i...

4일 전 | 0

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How to formulate and use non linier curve-fitting
Try this: D = dlmread('Example.txt', '\t', 1, 0); objfcn = @(b,x) exp(b(1) - b(2).*x(:,1).*x(:,2)./x(:,3)); ...

4일 전 | 0

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답변 있음
Solving for a system
The easiest way is to loop through the values of ‘ax’: lambda=1.55e-6; %Field in vertical direction axv=linspace(1e-6,2e-6,1...

4일 전 | 0

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답변 있음
How can I show (x,y) of a point in fsurf function?
Try this: Rx = eye(2); Rdx = [2; 4.5]; wo = Rx\Rdx; var_d = 24.4; syms w1 w2 vec_w = [w1 ; w2]; J(w1,w2) = var_d - 2*vec...

5일 전 | 1

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how to find kurtosis in freqeuncy domain
Your best option is likey to use a digital bandpass filter (for 0-2 Hz use a lowpass filter) to isolate those frequency ranges i...

5일 전 | 0

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Solving an Equation and then plotting a graph
In these two lines: sigmaSteel=@(c) Es*epss(c) .* (epss(c)<=epsy) + fy .* (epss(c)>epsy & epss(c)<=epssh) + (fsu+(fy-fsu)*abs(...

5일 전 | 1

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답변 있음
Selecting numbers in matrix that are repeated
Try this: A = randi(1000, 60, 5); % Create Matrix [Au,~,ix] = unique(A,'stable'); ...

5일 전 | 0

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답변 있음
Passing parameters in boundary value problem using BVP4C
Define ‘a’ in your workspace, then use this bvp4c call: sol = bvp4c(@(x,y)twoode(x,y,a),@(ya,yb)twobc(ya,yb,a),solinit); You ...

5일 전 | 1

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