Star Strider

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

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What is the formula used by nlparci?
If you want to see the actual code: edit('nlparci.m') may allow you to see it. (I did not try that. Regardless, do not chan...

約6時間前 | 0

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Legend Problems with Graph
Try something like this: figure(6) %corresponds to bottom graph % clf hold on h1 = plot(pos01,Umeasured1,'k-o','MarkerSize'...

約10時間前 | 1

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How to calculate the hourly average
If you have R2016b or later, this is straightforward: T1 = readtable('Matlab.csv'); First_5_Rows = T1(1:5,:); TT1 = table2ti...

約11時間前 | 0

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Kinetics model-Why i dont get 3 graphs of these modeling, but i get just one for C catalyst. Is there problem with definition of k?
If you want to fit your differential equations to the ‘k’ matrix to estimate the parameters of your system, your current approac...

約13時間前 | 0

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Uneven linspacing of an array
I am not certain of the result you want. One option would be to use logspace instead of linspace, since that would produce lo...

約13時間前 | 0

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How can I save and plot all values of x and y for each value of V? x and y values are in the vertical axis and V in the horizontal axis in the graphic
Try this instead: V=[1,2,3,4]; for k = 1:numel(V) xy(:,k) = [V(k) 1; -1 1] \ [2; 3]; end figure plot3(xy(1,:), x...

約14時間前 | 0

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Isolate reflection from a signal
The reflections are likely going to be opposite in sign from the indicent signal. One option is to use the findsignal function ...

約14時間前 | 0

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Help on plot 3 roots for each variable and connecting them
See if this slightly edited version of your code does what you want: n = 10; K_p_neg_inf = -1000; K_p_pos_inf = 1000; K_p_n...

1日前 | 0

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help with row vector
See the documentation on linspace.

1日前 | 1

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smoothed scatter plot matlab like excel
I have no idea what you want. Try this: X = [6;10;13;23]; Y = [3.78E-04;1.06E-03;1.78E-03;2.10E-03]; Xi = linspace(min(X)...

1日前 | 0

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whats wrong with my code??
Yoiu need to do element-wise operationsn (using the dot operator): v=((m.*g)-(m.*a))./k See Array vs. Matrix Operations for d...

1日前 | 0

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how to display on increment 0.5 for time
Change this: for t=0:0.001:10 to: for t=0:0.5:10 That is the only line that defines ‘t’ that I can see, so that one change...

1日前 | 0

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solving system of equations
This runs without error (after several changes): V = 2435 ; k = 1.076 ; Kn = 0.27 ; k=1.076; Y=0.39; kd=0.04; bs=0.15;...

1日前 | 0

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How to solve Ordinary Differential Equations with Sin(wt) ?
I replaced ‘i’ with ‘c’ to avoid problems with imaginary operators: syms c(t) w t i0 Eqn = 10*sin(w*t) == 0.001*diff(c) + 100...

2日前 | 0

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how to solve 5 equations with 5 unknowns.
Use the Symbolic Math Toolbox: syms T x r k K_c Eq1 = T==300+200*x Eq2 = -r==0.1*k*(1-x-(x/K_c)) Eq3 = 2500==x/(-r) Eq4 =...

2日前 | 0

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Adding two strings same row size
To use the join function, your data must first be present as table objects. Fortunately, that is not necessary. Just use arr...

2日前 | 0

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Problem with time code - function definition not permitted in this context
I have no idea what the rest of your script looks like, since it was not posted. See the documentation on Create Functions in...

2日前 | 0

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Contour Plot of Rosie Function
Transpose ‘f’, since ‘x1’ and ‘x2’ appear to be the same (otherwise it would also be necessary to reverse their orders in the ar...

2日前 | 0

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Plotting a fourier transform graph
Try this: syms t w f(t)=t*rectangularPulse(t/2); F(w)=fourier(f,t,w); figure fplot(real(F), [-50 50]) hold on fplo...

2日前 | 1

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How to add Labels to Files saving as .txt
Create the columns as a table, then add the column names as variable names. Use writetable to save it as a file.

2日前 | 0

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multiple graph plotting error
See: multiple graphs plotting error

3日前 | 0

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multiple graphs plotting error
The ‘t’ vector for the first series of curves is: t=0:0.1:100; and for the second: t=0:0.1:2000; That likely explains th...

3日前 | 0

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Combining Two Plots into One Won't Work!
Not trivial, however also not difficult. F{1} = openfig('f1.fig'); F{2} = openfig('f2.fig'); figure hold on for k1 = 1:...

3日前 | 0

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Excluding folders from a dir Structure
Try this: valid_filenames = cellfun(@isfile,{d.name}); % Eliminate ‘.’, ‘..’ dnew = d(valid_filena...

3日前 | 0

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Intersection point between two graphs
See if the approach in Help finding intersecting points will do what you want.

3日前 | 0

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Code for calculating heart rate in Matlab
Using what data? For an EKG, use findpeaks to find the R-deflections, then make appropriate use of the ‘locs’ output to calcu...

3日前 | 0

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Reformatting columns and rows of a table
Perhaps stack? Otherwise unstack? (Not clear on the result you want.)

3日前 | 0

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LowPass filter order in Signal processing
The signalAnalyzer App is likely not going to be able to do what you want, since it analyzes the signal without designing any f...

3日前 | 0

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How can be obtain Power Spectral Density using FFT for foetal heart rate signal?
If you have the Signal Processing Toolbox, see the documentation section on Power Spectral Density Estimates Using FFT . Note...

3日前 | 0

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How to perform a zoom FFT on certain portion of a signal
First, see if the pspectrum funciton using the 'spectrogram' option will do what you want. It will segment the Fourier transfor...

4日前 | 0

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