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Star Strider


12.299 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
how can replace randi instead randint?
The appropriate Release Notes for R2016b says simply: ‘Replace all instances of randint with randi.’ According to this Answ...

etwa eine Stunde ago | 0

Answered
How do I fix this error? Not enough input arguments.
Your ‘a_p’ function has no idea what ‘a2’ and ‘b2’ are because you have not shared those with them. Try this: function valu...

etwa 4 Stunden ago | 0

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Answered
matlab plot, interrupted line when y is zero
Try this, using your own ‘x’ and ‘y’ vectors: x = 0:10; % Create Data y = randi([0 5], 1, 1...

etwa 5 Stunden ago | 0

Answered
How to draw an "error bar" between two points on a scatter plot
Without knowing what ‘(x1, y1) and (x2, y2)’ are, or what you want to plot, note that it is not necessary to draw lines with the...

etwa 6 Stunden ago | 0

Answered
MATLAB R2019a plot function is not working
It would be helpful to knnow what ‘not working’ means. That aside, to be sure you do not have a variable named ‘plot’, run th...

etwa 7 Stunden ago | 0

Answered
Sorting a table in Matlab
You can sort the table variables (columns) with the varfun function. Example: strs = char(randi([double('A'), double('z')], 1...

etwa 12 Stunden ago | 0

Answered
how to divide digital sequence into frames at timely basis
The Signal Processing Toolbox buffer function is an option. Choose the parameters depending on your sampling interval.

etwa 12 Stunden ago | 0

Answered
Error in model function using fitnlm
Your model function arguments are reversed from what they should be. In all MATLAB objective functions for fitnlm, lsqcurvefit,...

etwa 15 Stunden ago | 0

Answered
How to solve this system of ODEs
Another approach begins with using the Symbolic Math Toolbox to create functions for your equations: syms a b c d k x(t) y(t) ...

ein Tag ago | 0

Answered
how can I plot a unit step function?
The unit step function is also knoiwn as the heaviside step function.

ein Tag ago | 0

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Answered
Why it doesn’t work out?
It means you also need the Wavelet Toolbox.

ein Tag ago | 0

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Answered
How do you chop a number to a specified number of significant digits, not round
The print functions (such as sprintf and fprintf) round the result, so it is necessary to create more than the necessary number ...

2 Tage ago | 0

Answered
How to generate a set of variables with increasing numbers related to the indices of another array?
You can do that more easily with simple matrix-vector multiplication: z = y(:)*x producing: z = 1 1 1 2...

2 Tage ago | 0

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Answered
how to multiply values between arrays columns to rows and generate a new vector form each of the multiplication?
The operation you are looking for is not actually multiplication, it is convolution. Example: x = [ 1 1 1 ]; y = [ 1 2 3 ]...

2 Tage ago | 0

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Answered
writeTable won't take my parameters
The error was with table, not writetable. You are not creating the table correctly. Try this: titles={'the' 'hungry' 'dog'...

2 Tage ago | 0

Answered
I need turnover for last month from my table
Try this: dv = datetime({'01-Jul-2019 17:00:39'; '24-Jul-2019 14:00:18'; '01-Aug-2019 16:00:35'; '15-Aug-2019 15:40:24'; '21-A...

2 Tage ago | 1

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Answered
3d plot help
The description ‘Time at x-axis , cost at y-axis and Profit = revenue - cost at y-axis’ describes a 2D plot. Try this: D = ...

2 Tage ago | 1

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Answered
How can i find the intersection of two lines between points? One of the lines isnt well behaved
Try this: x = linspace(0, 1, 40); % Create Data y1 = 1.0592*ones(size(x)); ...

3 Tage ago | 1

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Answered
Plotting multiple piecewise functions onto the same graph
I coded and ran ‘y1’ as: y1 = @(x) ((0<x) & (x<1.85)).*sin(523.26*pi*x) + ((1.85<x) & (x<3.7)).*0 + ((3.7<x) & (x<5.55)).*sin(...

3 Tage ago | 0

Answered
X axis is not displaying final value
We don’t have ‘t’ (or anything else). EDIT — Note that: q = 0:15:115; only goes out to 105, not to 115. The next valu...

3 Tage ago | 0

Answered
How to write a legend in latex format
Try this: Npc=2; legend(sprintf('\\Sigma_{i=1}^{%d} x^\\prime_i',Npc),'Total L_w','Noise'); That worked correctly when I tes...

3 Tage ago | 2

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Answered
How to combine fill figures?
It depends on what you want to do. Guessing here that the hold function might be what you want.

3 Tage ago | 0

Answered
Saving Data In A For Loop Into An Array
The easiest way would probably be to save them all in separate cell arrays, here ‘xc’, ‘yc’, and ‘zc’: for columns=1:4 fo...

4 Tage ago | 1

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Answered
Index a series of integers in a column of matrix
I am not sure what you want. Try this: T2 = [2 7 4 5 1 0 1 3 1 5 6 7 4 7 2 7]'; Idx = strfind(T2', [2 7]) Out = T2([Idx(:...

4 Tage ago | 0

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Answered
How can I convert (x,y) points(double) into cell
If yu want to store them individually as cells, the num2cell function will work. Otherwise see if the mat2cell function will ...

4 Tage ago | 0

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Answered
find the element location
You have encountered ‘floating-point approximation error’. Most numbers are not exactly represented in floating-point precision...

4 Tage ago | 1

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Answered
importing excel data using for loop
This variation on your loop will generate the names that you can then use for your readtable calls: for kk=1:24 fv = sp...

4 Tage ago | 0

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Answered
how can i plot ?
Try this: A=[2.8866 2.5708 2.9381 2.6234 2.7873 2.8535 3.5818 4.1817 3.6535 4.6312 4.2028 4.4...

5 Tage ago | 0

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Answered
Plotting FRF with imaginary and real numbers
‘I would like to know if it is possible to plot the graphic of it (resulting in the natural frequencies and stuff) only having t...

5 Tage ago | 0

Answered
parameter estimation for a set of differential equations using fmincon function in matlab
You will likely find Monod kinetics and curve fitting helpful. (There are similar posts as well.) One way to force ‘dcdt’ to...

6 Tage ago | 0

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