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Star Strider


12,923 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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Projectile motion plot angle not working on graph
Your code works when I run it with: Vo = 100; Theta = 45; y0 = 0;

약 6시간 전 | 0

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Add uncertainty interval time-series
Depending on the plot resolution, it could be difficult to see easily. Try this: time = linspace(0, 20); temp = 20+10*sin(...

약 6시간 전 | 0

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Create New Arrange of a Matrix - Rearrange Matrix
I created values for your data, since I do not have the original values. Try this: Col1 = repmat((1:4), 5, 1); Col1 = Col1...

약 9시간 전 | 0

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how to plot Contour Plot?
I assume your variables are vectors. If they are gridded, it is only necessary to use the reshape function to form them into ma...

약 18시간 전 | 0

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ode45 two equations
The ODE functions are defined with the derivative on the left-hand-side of the equal sign, and the expression on the right, so f...

약 18시간 전 | 1

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Matlab confuses variable with matrix
Apparently, ‘x’ is a vector (or array). Use element-wise exponentiation (.^) in that event: f=@(x) 54*(x.^6) + 45*(x.^5) - 10...

1일 전 | 0

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How to interpolate mooring data and creat a Longitude-depth profile.
I am not certain what you want as a result. Try this: temp35W = [ 12 0 28.25 28.09 27.41 25.57 21.77 17.94 15.83 14.49 13.2...

1일 전 | 1

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Why do i get "Too many output arguments" when i try to multiply my function?
You did not create an output when you declared your function. Try this slightly modified version of your function: function...

1일 전 | 0

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I need to plot solid/black, solid/red, dashed/black and dashed/red for x1 x2 x3 and x4. How can I plot dash?
Try this: plot(t,x1Sol(t),'black', 'linewidth' ,2) hold on plot(t,x2Sol(t), 'red','linewidth' ,2) plot(t,x3Sol(t), '--b...

1일 전 | 0

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Adding Color Under Certain Areas of Function Plot
Try this: % %% Part 1: Solar Radiation %Constants: h = 6.626e-34; k = 1.381e-23; c = 2.998e8; t = 5800; r_sun = 1.39e9/...

2일 전 | 0

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function with ln and log
It is missing a multiplication operator: y2 = (x-1)(log((3^.5)/2)*x-log(3/8)); ↑ Try this: y2 = (x-1).*(log((3^.5...

3일 전 | 0

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Plotting a line given its slope and one coordinate
Try this: x = 88; y = 56; slope = 1.08; y_intercept = y - slope*x; xv = [0 100]; figure plot(xv, slope*xv+y_intercep...

3일 전 | 0

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Need help displaying an output file for data.
I have no idea what you want to do. However if you create a table of your results, writetable could do what you want.

3일 전 | 1

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Repeat 3-D array elements
Use the repmat function: A = rand(67, 960, 80); B = repmat(A, 1, 1, 3); sizeB = size(B) producing: sizeB = 67 960 ...

3일 전 | 0

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AREA UNDER the CURVE
Defining your matrix as ‘M’, use the trapz function twice, once in each dimension: AUC = trapz(trapz(M)) producing: AUC = ...

4일 전 | 0

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Fitting data in x,y to a known function
Use the fminsearch function to fit your data: x1 = linspace(1,32,32); y1 = [0.01 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03 0.04...

4일 전 | 0

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How can my function work?
Either change the function output to ‘Wans’: function Wans = fishing_load_factor(t) or change the ‘Wans’ within it to ‘W’.

4일 전 | 0

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error bars in bar plot with categories
This seems to be an XOR situation. Apparently, it is possible to have categorical x-values or errorbar bars but not both. Th...

4일 전 | 0

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Plot dB/dt vs. time by ODE45 (coupled differential equations)
One option is to loop through the ‘odes’ function with the time vector and solved values for ‘varsol’. A much easier option i...

4일 전 | 1

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Remove the 50 Hz Hum from a Signal
The designfilt call designs a second-order Butterworth filter. It appears to be correct when I analyse it with freqz. Without ...

4일 전 | 0

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Fitting 2 data sets simultaneously using two different equations with some shared fit parameters.
Try this: global_fit_data = [A; B].'; % A and B are vectors of size 1X85 t = (0:10:840).'; global_fit_function = @(p,t) [p(3...

5일 전 | 0

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how to i change the x-axis from time to angle with this data?
Without your code, an exact respoinse is not possible. See for example XTick and XTickLabel.

5일 전 | 0

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How can I solve a set of equations using a function handle?
Try this: BigLambdaFunction = @(p,t,T) 1 - p(1).*((p(2)-(t-T))./(p(2)-t)).*exp((p(1).*T)./p(2)) biglambda = [ 0.0455 0....

5일 전 | 0

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@FinalProject_ode must return a column vector (solved)
Assuming all the elements are scalars, either transpose ‘dydt’ or put semicolons between the elements: dydt = [dPPARuFFA; dPPA...

5일 전 | 0

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How to fix the code
If you want to set ‘N’ to the row size of ‘DATA’, this is preferable: N = size(DATA,1); Perhaps you intend to read the entir...

5일 전 | 0

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Should I shift my fft function?
It depends on the result you want. The shifted version plots the negative and positve frequencies (the Fourier transform is sym...

5일 전 | 0

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Matlab Outputting answers as fractions
You are still in the Symbolic Math Toolbox environment. Try one of these (depending on the rresult you want): X = vpa(linso...

5일 전 | 1

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Multiplying a 3x3 matrix where values change with each iteration by a 3x1 matrix with values that iterate
What part of my Comment to your previous post Struggling with iterative matrix multiplication does not work?

5일 전 | 0

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Highpass Filter Sound Help
Store the filtered signals in a cell array (easiest). Then use the playblocking function to play them back one after the other ...

6일 전 | 0

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Why it plots more than just one point and how do I get rid of them
The code plots more than one point because you told it to. Revised code: function xp=h2(t,x) xp=zeros(2,1); xp(1)=(x(2)) ...

6일 전 | 0

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