# Paul

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Generate random integers that sums to a specific number within a specific range
How about a simple loop that finds all combinations of the random variables that satisfy the constraint and then sample from tha...

environ 18 heures il y a | 0

Question

What is the Interpretation of the p-Value from runstest() ?
For the function runstest the null hypothesis is "that the values in the data vector x come in random order." Running 100 run t...

2 jours il y a | 1 réponse | 0

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What units does Matlab's function angvel produce?
angvel is fundamentally flawed. Here's the example (truncated) from the doc eulerAngles = [(0:10:40).',zeros(numel(0:10:40),2)...

2 jours il y a | 1

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I am trying to implement a state space solution in Simulink with 1 variable m in matrix C, but the runtime error says Variable ‘m’ does not exist.
The Goto block is used for signal flow, not assignment to a variable. The Constant1 and Goto blocks can be deleted. The easiest...

6 jours il y a | 0

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vpasolve giving incorrect answers for a system of trigonometric equations. How do I set bounds to the solution?
Hi Nat, I didn't try to analyze the equations to be solved, but they appear to be very sensitive to the actual values of Sa1, S...

6 jours il y a | 0

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Should table Indexing be Faster?
Example code. t = combinations(0:10,0:10,0:10,0:10); tic for ii = 1:10 for jj = 1:height(t) u = t{jj,:}; ...

6 jours il y a | 1 réponse | 2

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Do you just want to set the maximum step size for the solver?

7 jours il y a | 0

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Can a system() Command be used Inside a Function Called from Inside a parfor Loop?
Is the following code allowed: result = zeros(100,1); parfor ii = 1:100 % do something result(ii) = myfun(resul...

8 jours il y a | 1 réponse | 0

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Simulink model parameter update and observations at discrete times
I think you can do exactly what you want using the new (since 2024a) simulation object.

9 jours il y a | 0

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One approach ... Put a To Workspace block with inherited sample time inside a Triggered Subsystem. Send the data to be logged ...

9 jours il y a | 0

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What is the reference level used in spectrogram power computation?
Hi Ethan, In signal processing the concepts of power and energy are similar to, but not exactly the same, as the what those ter...

13 jours il y a | 0

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How to label a signal using a sub-system mask parameter in Simulink?
Hi Kevin, I was able to change a signal name in the masked subsystem using code in the mask initialization code. In my simple e...

15 jours il y a | 0

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Spectrogram output versus figure
Hi DLR, Stepping through spectrogram shows that, when output argruments aren't specified, the PSD data that's plotted is offset...

16 jours il y a | 0

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How Does SeriesIndex Work with LineStyleOrder?
My interpretation of SeriesIndex is that it controls the color and style of a line based on the ColorOrder and the LineStyleOrde...

19 jours il y a | 1 réponse | 0

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Solve more complex problems in matlab
Modifying the approach from the question, using solve seems to work fine. syms x m real eq = (m-2)*x^2-3*m*x+(m+2) == 0; eq_r...

21 jours il y a | 0

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Failing to create matrix from cell array in several ways
Hi Amit, To subscript into a cell array and return a cell array, use () as with normal array indexing, which should have worked...

environ un mois il y a | 0

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Maybe a mistake in the documentation of function ''robgain''
Hi Hongrui, I agree that the statement on the doc page for that example is incorrect. At the bottom of the page you can click ...

environ un mois il y a | 1

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allmargin gives incorrect answers for some discrete time systems
Hi Carlos, In 2024a, allmargin introduced a new "Focus" input. Check the doc page for more information. As far as I can tell, ...

environ un mois il y a | 0

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Using ss2tf when your matrices are variables without values yet
Hi Wynand, For a low-order problem like this, you can use the Symbolic toolbox to evaluate the equtation that computes the tran...

environ un mois il y a | 0

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How to convert euler angles to rotation matrix and back to euler angles consistently?
"While I am aware of the intermediate steps, I kind of expected the inbuilt matlab functions to be consistent during the to-and-...

environ un mois il y a | 1

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Invalid setting in 'Model' for parameter 'Gain'.
Hi SM, Try usin the setVariable method in the Simulink.SimuationInput object. function objective_func = F3(x) mdl = "Model"; ...

environ 2 mois il y a | 0

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What is the Image Processing Toolbox Convention for Input to freqz2() ?
I was trying to learn how to use the function freqz2 in the Image Processing Toolbox. That doc page says that the FIR filter inp...

environ 2 mois il y a | 1 réponse | 0

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Hi Sajjad, It sounds like you want to use the feature of the Integrator block for Resetting the State. At every t_i, you can re...

environ 2 mois il y a | 1

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Calculating Power of Specific Spatial Frequencies of pictures
Hi Olivia, The equations for u and v are correct if rows and cols are both even. Otherwise, they'd have to be adjusted. Regard...

environ 2 mois il y a | 0

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choose B or C or D if A does not exist - how to write this?
Create an example structure data.THDA = 1;data.THPP = 2;data.THDP = 3; Use fieldnames to get the fields of data fnames = fiel...

environ 2 mois il y a | 0

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How to save an output from Simulink into MatLab during different iteration ?
Hi Ronan, Based on the description, there are probably several options, but hard to say specifically becasue we don't know exac...

environ 2 mois il y a | 0

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Bivariate normal value standardization
Hi CJ, In short, the area of integration for the X1 case is no longer a rectangle as is assumed by mvncdf Define the original ...

environ 2 mois il y a | 0

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How do I solve this error in Parameter Setting for 2-D Lookup Table Block in Simulink?
% Create a surrogate model for vehicle longitudinal dynamics % Set model name modelName = 'VehicleLongitudinalSurrogate'; % C...

environ 2 mois il y a | 1

| A accepté

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Application of multistage decimator filter to signal
As shown at designMultistageDecimator, this function retruns a dsp.FilterCascade object M = 48; Fin = 30.72e6*M; Astop = 90; ...

environ 2 mois il y a | 0

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