Risposto
How to properly make a circular histogram?
Hi Neuroesc, "However, the resulting histogram is not really ideal - the bins are not homogeneous because they get larger as th...

quasi 2 anni fa | 1

Risposto
Trying to use for loop to create an array of bandpass filters, but gets error "conversion to double from dfilt.df2sos is not possible"
Hi Hanlin Wang, fs = 48000; % sample frequency wss1 = [5680 2840 1420 710 355 177 88 44]*2*pi/fs; wss2 = [11360 5680 2840 142...

quasi 2 anni fa | 0

Risposto
Compare char data in a cell {'x'} to a character 'x'
Create the sample .txt file filetext = ["HEADER that is ignored";"R 0 5";"L 5 0"]; writelines(filetext,"test.txt"); type test...

quasi 2 anni fa | 0

Domanda


Why Doesn't "clear all" Clear the Assumptions from the Symbolic Engine?
According to the doc page assumptions To clear all objects in the MATLAB workspace and close the Symbolic Math Toolbox™ engine ...

quasi 2 anni fa | 1 risposta | 0

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Risposto
Finding Z-Transform of a piecewise function.
Based on the context of the question, it is quite likely that the problem is to solve for the bilateral z-transform of f(n). Ho...

quasi 2 anni fa | 0

Risposto
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...

quasi 2 anni fa | 0

Domanda


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...

quasi 2 anni fa | 1 risposta | 0

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Risposto
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)...

quasi 2 anni fa | 2

Risposto
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...

quasi 2 anni fa | 0

Risposto
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...

quasi 2 anni fa | 0

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Domanda


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,:}; ...

quasi 2 anni fa | 1 risposta | 3

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Risposto
Increase temporal granularity in simulink
Do you just want to set the maximum step size for the solver?

quasi 2 anni fa | 0

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Domanda


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...

quasi 2 anni fa | 1 risposta | 0

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Risposto
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.

quasi 2 anni fa | 0

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

quasi 2 anni fa | 0

Risposto
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...

quasi 2 anni fa | 0

Risposto
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...

quasi 2 anni fa | 0

Risposto
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...

quasi 2 anni fa | 0

Domanda


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...

quasi 2 anni fa | 1 risposta | 1

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Risposto
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...

quasi 2 anni fa | 0

Risposto
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...

circa 2 anni fa | 0

Risposto
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 ...

circa 2 anni fa | 1

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Risposto
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, ...

circa 2 anni fa | 0

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Risposto
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...

circa 2 anni fa | 1

Risposto
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-...

circa 2 anni fa | 2

Risposto
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"; ...

circa 2 anni fa | 0

Domanda


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...

circa 2 anni fa | 1 risposta | 0

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Risposto
Combined Discrete-Continuous Simulation In SIMULINK
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...

circa 2 anni fa | 1

Risposto
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...

circa 2 anni fa | 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...

circa 2 anni fa | 0

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