Respondida
How to get max of repeated values?
Can use splitapply C = [0.5000 0.5000 0.3000 1.0000 0.8000 0.3000 0.7000 0.7000 0.3000 0.4000 ...

más de 3 años hace | 0

Respondida
Getting Simulink compile-time error "Grid inputs must be vectors or the output of MESHGRID" even though I don't get that error when I try testing those lines in MATLAB
That's an odd error message insofar as interpn actually requires the the grid inputs to be the output of NDGRID (not MESHGRID) a...

más de 3 años hace | 0

Respondida
How to output a vector in MATLAB Function in Simulink?
One problem that I should have seen before is that this line [xdot_3,xdot_4] = Minv * [same stuff here]; should be temp = M_t...

más de 3 años hace | 0

Respondida
string extraction from a table
Age = [38;43;38;40;49;45;42;24;50;99]; Smoker = logical([1;0;1;0;1;1;1;0;0;1]); LastName = {'Brown_Howard';'Johnson';'Lee';'Di...

más de 3 años hace | 0

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Pregunta

Are Arithmetic Operations on a Cell Array of sym Objects Documented Behavior?
I inadvertently stumbled across this behavior: syms z H(z) = 1/(z+1) - 1/(z+2) c = children(H(z)) whos c c is a cell array ...

más de 3 años hace | 0 respuestas | 2

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respuestas

Respondida
Simulink signal is double when it should be logical.
Hi Sam, Set the initial condition of the Delay block (or Unit Delay block, not sure which is being used) to false or true as de...

más de 3 años hace | 0

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Respondida
Displaying sum on plot
Use text rng(100) x = rand(10,1); % some data plot(x) text(1,.1,"Sum = " + string(sum(x))) Modify as needed

más de 3 años hace | 0

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Respondida
Graphing Fourier magnitude and phase spectra using fft, error: Array indices must be positive integers or logical values.
Hi Luke, At the line in question, we see that x(t) is non-integer numeric value, which can't be used to index into the array ff...

más de 3 años hace | 0

Respondida
matrix math problems , error in matrix size
Hard to say without without knowing anything about the data in the question. Based on the wording it should work as follows A =...

más de 3 años hace | 0

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Respondida
Creating a Closed loop transfer function of a model
Hi Jacob, Perhaps a clue is that the code doesn't use loop1 after it's computed. Once you have loop1, how does it relate to G2 ...

más de 3 años hace | 0

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Respondida
How to solve a non-linear system of differential equations?
Hi Pacao, The missing step is a call to odeToVectorField before the call to matlabFunction. Check that first doc page and then ...

más de 3 años hace | 0

Respondida
Systems with two different execution rates
Hi Samy, Are you intending to have one model reference the other via a Model block? If so, and if you have at least R2022a, I ...

más de 3 años hace | 1

Respondida
Calling the vectorized Matlab fcn from within Simulink
Use a Matlab Function block in the Simulink model and call your function from inside that block. If your function is not amenabl...

más de 3 años hace | 0

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Respondida
Generating numbers following a lognormal distribution within a specific interval
Hi Behrooz, Shouldn't the relationship be the log of the mean of samples is equal to mu + sigma^2/2 ? In any case, why would t...

más de 3 años hace | 0

Respondida
Inconsistency of the figure and value on the curve
Hi @M The equation for Dcdenominator is not properly vectorized. In one spot it uses /, which should be ./ % was % Dcdenom...

más de 3 años hace | 0

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Respondida
Problem using symbolic sinc?
We can get rid of the vertical asymptote with: syms x y w F A = 1; tau = 1; F = A*tau*sinc(w/(2*pi)*tau); figure fplot(abs...

más de 3 años hace | 0

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Respondida
Mixture of 2 salts + Dirac
Hi Adrielli, Why is Ain defined and then redefined? Is that correct? What is the role of the x and y variables in this problem...

más de 3 años hace | 1

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Respondida
How to create a transfer function with no simplification ?
I'm almost certain that this can't be done in the CST. If just wanted for display purposes you'd have to write your own code, bu...

más de 3 años hace | 1

Respondida
Discrete input signal and continuous transfer function
Not sure what the issue was with lsim without seeing the code. Is the transfer function contiuous time, e.g. a model of an anal...

más de 3 años hace | 0

Respondida
how to replace a symbolic variable with a real one after computation?
Use subs or symfun objects and covert to double are two options syms I3 I4 d = I3 + I4; double(subs(d,[I3 I4],[1.1 2.2])) d(...

más de 3 años hace | 0

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Respondida
sinc function doesnt work...
The code runs fine here. clear all close all clc T=0.1; A=1; tau=T/2; kmax=20; t0=tau/2; %% f0=1/T; t=(0:0.0001:1)*5*...

más de 3 años hace | 0

Respondida
Find source of stopped simulation in Simulink
Hi Stefan, If you use the sim command, then the output has some useful information. For example, I used a model with a Clock, f...

más de 3 años hace | 0

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Respondida
Bode Plot options to graph
Can be done if using bodeplot instead of bode H = tf([1 0.1 7.5],[1 0.12 9 0 0]); h = bodeplot(H); setoptions(h,'MagUnits','a...

más de 3 años hace | 0

Respondida
How to skip many vectors in a legend?
Something like this, but with different data simulation = rand(100,20); average = mean(simulation,2); analytical = 0*average+...

más de 3 años hace | 1

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Respondida
3D plot of sum series, error in symsum fuction
Hi grisham, The function symsum can only be used with symbolic inputs, as created by syms for example. However, the code has no...

más de 3 años hace | 0

Respondida
How to you put sin function in Simulink
Feed the output of a Clock into a Gain of 1/2. Feed the touput of that gain into a Trigonmetric Function block, select the cos o...

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Respondida
in the histogram function using "Normalization", "cdf" to draw out the histogram and cdf does not match, the end of histogram doesn't reach "1"
Are there any NaNs (or something similar) in uk.icu_patients? It seems that histogram and cdfplot treat NaNs differently x = r...

más de 3 años hace | 1

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Respondida
Phase gradient in fft
Hi Jiayun, First of all, I don't see anything in the code that does "zero-padding." That term typically refers to augmenting a ...

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Respondida
gfdeconv implementation in Simulink
If gfdeconv is not supported for code generation (it appears not to be as there is no "Extended Capabiliites" section on its doc...

más de 3 años hace | 1

Respondida
What is the reason why Simulink does not display numbers when I enter decimals for block parametric values?
Click/hold on a corner of the block and stretch it until the numerator and denominator polynomials are displayed.

más de 3 años hace | 0