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Star Strider


Last seen: Today 自 2012 起处于活动状态

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. Time Zone: UTC-7 (Standard); UTC-6 (Daylight Savings/Summer)

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已回答
Creating three shaded regions in a loglog plot
Perhaps something like this — R = 8.31; N = 6.022e23; Dia_air = 3.5e-10; P = 101325; Kn_1 = 0.1; Kn_2 = 10; Dia_al =...

24 minutes 前 | 0

已回答
How to display a symbolic formula without substitutions "where"?
@reincornator — I usually put this: sympref('AbbreviateOutput',false); just after the syms call in my code to prevent all the...

3 hours 前 | 0

已回答
Make a surface (interpolated colors) plot with contour lines over it
You can use a surfc plot with tweks to the contour plot, and an appropriate view call — [X,Y,Z] = peaks(250); figure hs = ...

4 hours 前 | 0

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已回答
polynomial function to transfer function in matlab
Consider this (if you have the System Identification Toolbox) — Data = iddata(y, x, Ts); sys = tfest(iddata, 4) figure c...

9 hours 前 | 0

已回答
How to get x value for a given y value in a interp1 figure?
To get both of them — vv=[0.190934428093434,0.277000826121106,0.477820361464529,0.703789686451856,1,0.703789686451856,0.477820...

9 hours 前 | 1

已回答
How can I use the Basic Fitting tool to create a trendline on different scatterplots within the same figure?
An easy way to do this is to use the lsline function. If you need the parameters of the line, they are relatively straightforwa...

10 hours 前 | 0

已回答
How to smoothly interpolate signal data using another datasets timestepping
Yes. If you have the Signal Processing Toolbox, use the resample function. You can define the sampling frequency of the resamp...

10 hours 前 | 0

已回答
EEG data preprocessing and filtering.
It seems to me that one or both filters are not designed correctly. The filtered result does not appear to be similar to the in...

10 hours 前 | 0

已回答
My scatter plot points aren't showing up on my main line plot.
Perhaps something like this — [s2max,s2idx] = max(s2); [s3max,s3idx] = max(s3); figure hold on scatter(t(s2idx),s2max,'o...

21 hours 前 | 0

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已回答
Can not calculate coefficient Accurately
Only request the coefficients of ‘X2’ and then divide ‘EQ_01(2)’ by ‘X1’ — syms X1 X2 Disp = X1*(4*X2 - 4*X1 + 1) [EQ_01, T...

1 day 前 | 0

已回答
Is there any example of Range-Speed Response Pattern in MATLAB or how can i crate one?
See the Phased Array System Toolbox documentation section on Range and Doppler Estimation and then choose the appropriate sectio...

1 day 前 | 0

已回答
Extracting certain set of points from a 3D plot
I would use the contour function for this. Example — [X,Y] = ndgrid(-3:0.1:3); f = @(x,y) exp(-(x.^2+y.^2*3)*0.75); Z = ...

2 days 前 | 0

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已回答
baseline correction of raman data
The general approach (that has worked for me before) to correct spectrum baselines is to identify specific local minima, fit a c...

2 days 前 | 0

已回答
Reduce the number of peaks from findpeaks command?
The findpeaks function has a number of name-value pair arguments that you can use. The two I use most often are 'MinPeakPromine...

3 days 前 | 0

已回答
See if datetime is within range
I do not entirely understand what you want to do. One approach — D1 = {'3/25/2024 15:01:15' 1 '3/25/2024 15:01:31' 2...

3 days 前 | 0

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已回答
how to use multiple '%c' on each variable ?
Add ‘VariantFy’ as an argument to the function as ‘L28’ (or whatever you choose to call it): function writefile(C,L28) and ...

3 days 前 | 0

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已回答
Problem while attaining the coefficent of variable
You need to specify more terms in your coeffs call. The problem is that then the polynomial separates into two separate polynom...

4 days 前 | 0

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已回答
histogram on data graph
One option (if your data were a scatter plot) would be the scatterhist or scatterhistogram functions. Otherwise, perhaps some...

5 days 前 | 0

已回答
Add a bar above a character in axis labels
Try this — figure ylabel('$\bar{c}$', 'Interpreter','latex') .

5 days 前 | 1

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已回答
'readtable' in 2023 version error (This issue did not occur in 2018)
I do not understand ‘2023b the array only has many 3’, however I believe that the shortened table display in the last few releas...

5 days 前 | 0

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已回答
Removing instantaneous jumps (outliers) from a time series data set
There are several functions to detect and remove outliers, depending on how you want to define them and deal with them. Here ...

6 days 前 | 0

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已回答
Rate of Force Development for Isometric Mid-Thigh Pull
The denominator is a vector, so you need to use element-wise division (./) instead of matrix division (/) — rRFD = (r_Peak - r...

7 days 前 | 0

已回答
Substitution of symbols in equation after their values are being calculated
Try this — syms yApprox(X1) a0 a1 a2 a3 a4 a5 a6 syms a2 a3 a4 a5 a6 EQ_01=a2 +9*a3 + 72*a4 + 540*a5 + 3888*a6 == -121/36000...

7 days 前 | 0

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已回答
How to create separate data for daylight hours and nighttime hours in MATLAB?
It would be best to begin by importing your data to a table using the readtable function. The date and time values (whatever th...

7 days 前 | 0

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已回答
How to Extracting Only Surface Coordinates from a 3D STL File in MATLAB?
See if the trisurf function does what you want — Uz = unzip('22G teardrop COMSOL.zip'); filename = Uz{:}; [TR,fileformat,att...

7 days 前 | 0

已回答
Facing Problem while solving Linear Equations simultaneously
The only correction required to get this to run is to add the syms declaration — syms a2 a3 a4 a5 a6 EQ_01=a2 +9*a3 + 72*a...

7 days 前 | 0

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已回答
Seeking Guidance on Electrophysiology Data Analysis: Data Smoothing, Baseline Adjustment, and Graph Overlay
There are probably several ways to do what you want, depending on what that is. To remove a wandering or non-zero baseline, o...

8 days 前 | 0

已回答
How to obtain the standard deviation of the fitting parameters?
The most meaningful measure of the parameters is the confidence interval. You could possibly recover some information from the ...

8 days 前 | 0

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已回答
What is the best way of calculating the path length of a freely moving tracked animal.
What you probably want is a line integral. This integrates the hypotenuse of simultaneously varying elements along a level path...

8 days 前 | 0

已回答
Converting xlsx files to frequency domains using the fft algorithm
Try this — T1 = readtable('120mm.xlsx') VN = T1.Properties.VariableNames([1 4:end]); t = T1{:,1}; s = T1{:,4:end}; Ts = ...

8 days 前 | 2

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