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How to approach iterative data reading?
Hi Eric, Use logical indexing. time = [rand(1, 5000)]; accel = [rand(1,5000)]; gcamp = [rand(1,5000)]; sd = std(accel); th...
How to approach iterative data reading?
Hi Eric, Use logical indexing. time = [rand(1, 5000)]; accel = [rand(1,5000)]; gcamp = [rand(1,5000)]; sd = std(accel); th...
2 days 前 | 0
| 已接受
已回答
how to use mussv with negative frequency?
mussv appears to run w/o error for a complex-valued state space model and does extend its analysis to negative frequencies. Alt...
how to use mussv with negative frequency?
mussv appears to run w/o error for a complex-valued state space model and does extend its analysis to negative frequencies. Alt...
3 days 前 | 1
Discussion
550,000 Questions on Answers
The 550,000th question has been asked on Answers. How to build a BESS model phasor system - MATLAB Answers - MATLAB Central
6 days 前 | 0
提问
Why Does polyval Return Zero When the Coefficients are Empty?
polyval([],1) polyval(ones(1,0),1) Do those results follow from a mathematical justification or are they arbitrarily specified...
7 days 前 | 3 个回答 | 1
3
个回答已回答
pwelch method of power spectral density (psd) calculation
As to why pwelch applies datawrap for the case nfft < numel(win) ... I did a bit more searching to try to find the motivation f...
pwelch method of power spectral density (psd) calculation
As to why pwelch applies datawrap for the case nfft < numel(win) ... I did a bit more searching to try to find the motivation f...
7 days 前 | 0
已回答
Zero gain margin for an stable system from both allmargin and margin
I believe that allmargin yields a result that a user could incorrectly interpret for this example. Define the open-loop transfe...
Zero gain margin for an stable system from both allmargin and margin
I believe that allmargin yields a result that a user could incorrectly interpret for this example. Define the open-loop transfe...
8 days 前 | 0
已回答
Direct Dynamics of Two-Link Manipulator
It looks like the Matlab Function block is commented. Right click on it and then click Uncomment on the pop-up menu.
Direct Dynamics of Two-Link Manipulator
It looks like the Matlab Function block is commented. Right click on it and then click Uncomment on the pop-up menu.
14 days 前 | 0
已回答
Trying to filter timeseries data by logical index on time within matlab function block but it tells me property Time not recognized as valid
Hi Matthew, The output signal of the From File block is not a time series, it's probably a double. The output from the Constan...
Trying to filter timeseries data by logical index on time within matlab function block but it tells me property Time not recognized as valid
Hi Matthew, The output signal of the From File block is not a time series, it's probably a double. The output from the Constan...
15 days 前 | 0
已回答
Does [V,D] = eig(A) always return normalized eigenvectors for any real matrix A?
Whether or not the columns of V are normalized to unit magnitude depends on how eig is called. See eig - Eigenvalues and eigenv...
Does [V,D] = eig(A) always return normalized eigenvectors for any real matrix A?
Whether or not the columns of V are normalized to unit magnitude depends on how eig is called. See eig - Eigenvalues and eigenv...
18 days 前 | 1
| 已接受
已回答
Rate Limiter in enabled subsystem
I tried a Rate Limiter block inside an Enabled Subsystem and the simulation ran to completion in both Normal and Accelerator mod...
Rate Limiter in enabled subsystem
I tried a Rate Limiter block inside an Enabled Subsystem and the simulation ran to completion in both Normal and Accelerator mod...
19 days 前 | 1
提问
What is the Best Way to Call Matlab from a C++ Program and Return Results to that Program?
What is the best way to call Matlab from a C++ program and return results to that program? So far, I can see two options: 1. U...
20 days 前 | 0 个回答 | 0
0
个回答已回答
How to make a matlab script that runs simulink model to run parallel instances of the model
Hi alberto, The third input to setVariable should be the actual value of the variable. simIn(idx) = simIn(idx).setVariable('Se...
How to make a matlab script that runs simulink model to run parallel instances of the model
Hi alberto, The third input to setVariable should be the actual value of the variable. simIn(idx) = simIn(idx).setVariable('Se...
25 days 前 | 0
| 已接受
已回答
How to Configure Simscape Multibody Block Parameters Using MATLAB
Hi Justina, It does appear that the Simscape Multibody documentation is sparse to non-existent on programmatic use of block par...
How to Configure Simscape Multibody Block Parameters Using MATLAB
Hi Justina, It does appear that the Simscape Multibody documentation is sparse to non-existent on programmatic use of block par...
26 days 前 | 1
| 已接受
已回答
Robust Control: dksyn example
I believe the issue here is that: the plant is unstable, the construction of P2 duplicates all of the states in the generalize...
Robust Control: dksyn example
I believe the issue here is that: the plant is unstable, the construction of P2 duplicates all of the states in the generalize...
27 days 前 | 0
已回答
A quarter car model with additional massless degree of freedom for the top mount
Hi @Simon Aldworth Seems like the equation for the massless element would be: m5*x5ddot = kp * (x1 - x5) + cs * (x2dot - x5dot...
A quarter car model with additional massless degree of freedom for the top mount
Hi @Simon Aldworth Seems like the equation for the massless element would be: m5*x5ddot = kp * (x1 - x5) + cs * (x2dot - x5dot...
30 days 前 | 0
已回答
How can I store data from my simulink model in and and use it during runtime.
Does the trigger event enable the execution of an enbabled subsystem? Is the data to be captured from a signal inside that enabl...
How can I store data from my simulink model in and and use it during runtime.
Does the trigger event enable the execution of an enbabled subsystem? Is the data to be captured from a signal inside that enabl...
1 month 前 | 0
已回答
simulink reference block or library block
Hi stephane, Component-Based Modeling Guidelines - MATLAB & Simulink is a good place to start, followed by the links at the bot...
simulink reference block or library block
Hi stephane, Component-Based Modeling Guidelines - MATLAB & Simulink is a good place to start, followed by the links at the bot...
1 month 前 | 0
已回答
searchin for an M file in all folders of my PC.
The dir command can recursively search. I think for this question it would be d = dir("C:\**\filetofind.m")
searchin for an M file in all folders of my PC.
The dir command can recursively search. I think for this question it would be d = dir("C:\**\filetofind.m")
1 month 前 | 1
已回答
Repeated uncertanity Blocks in robust control
Hi Amit, As far as I can see, mussv does not support repeated, full, complex blocks. Out of curiosity, in what sort of problem...
Repeated uncertanity Blocks in robust control
Hi Amit, As far as I can see, mussv does not support repeated, full, complex blocks. Out of curiosity, in what sort of problem...
1 month 前 | 0
已回答
Why Does ifourier Not Return Equivalent Results for Equivalent Transforms?
Tech Support confirmed a bug (and it's quite pernicious IMO). Their suggested workaround for this particular problem is to simp...
Why Does ifourier Not Return Equivalent Results for Equivalent Transforms?
Tech Support confirmed a bug (and it's quite pernicious IMO). Their suggested workaround for this particular problem is to simp...
1 month 前 | 1
提问
Why Does ifourier Not Return Equivalent Results for Equivalent Transforms?
Consider two expressions of a Fourier transform syms t omega real HU(omega) = -(exp(-omega*1i)*(exp(omega*1i) - 1)*(omega + 1i...
1 month 前 | 1 个回答 | 0
1
个回答已回答
Any way to remove terms smaller than "digits" from symbolic expression? R2023a
"Uh, it's always the term that's on the order of the smallest number representable by digits." Giving the benefit of the doubt ...
Any way to remove terms smaller than "digits" from symbolic expression? R2023a
"Uh, it's always the term that's on the order of the smallest number representable by digits." Giving the benefit of the doubt ...
2 months 前 | 1
已回答
Accessing Simulink model inputs and outputs when stepping model via MATLAB set_param(mdl, 'SimulationCommand', 'step') command
Hi Sebastian, Check out the doc page for using a simulation object. It make it easier to do what you want.
Accessing Simulink model inputs and outputs when stepping model via MATLAB set_param(mdl, 'SimulationCommand', 'step') command
Hi Sebastian, Check out the doc page for using a simulation object. It make it easier to do what you want.
2 months 前 | 1
提问
Why Doesn't pwelch with the 'centered' Option Follow the Same Convention as fftshift for Even nfft?
When the fft length is even, fftshift flips the input so that the Nyquist point is to the left. But pwelch with freqrange = 'cen...
2 months 前 | 0 个回答 | 0
0
个回答提问
Should Unity Value be Displayed when Multiplied by a symunit?
The following results look peculiar IMO. Shouldn't a unit always be preceded by a value? I've never seen this convention before....
2 months 前 | 0 个回答 | 0
0
个回答已回答
Adding a single left bracket and a single right bracket to a matrix
I'm not sure if this can be done in the command window, but in a Live Script matrix output can be shown with square brackets. A...
Adding a single left bracket and a single right bracket to a matrix
I'm not sure if this can be done in the command window, but in a Live Script matrix output can be shown with square brackets. A...
2 months 前 | 1
| 已接受
已回答
problem with coeffs command
syms w z u y v x 5*w - 5*z - u*((603367941593515*x)/4503599627370496 - y/2) - v*(x/2 + (603367941593515*y)/4503599627370496) - ...
problem with coeffs command
syms w z u y v x 5*w - 5*z - u*((603367941593515*x)/4503599627370496 - y/2) - v*(x/2 + (603367941593515*y)/4503599627370496) - ...
2 months 前 | 1
| 已接受
已回答
power spectral density of nonstationary data
Hi hxen, When uploading the data in a .csv file, please also include the code that reads the data from that file. It wasn't har...
power spectral density of nonstationary data
Hi hxen, When uploading the data in a .csv file, please also include the code that reads the data from that file. It wasn't har...
2 months 前 | 0
| 已接受
已回答
Can Simulink and other simulation software be repeatedly executed through Matlab scripts when simulating together？
Hi yiwei, There are several options for running Simulink simulations from Matlab scripts. Start from Run Simulations and then g...
Can Simulink and other simulation software be repeatedly executed through Matlab scripts when simulating together？
Hi yiwei, There are several options for running Simulink simulations from Matlab scripts. Start from Run Simulations and then g...
2 months 前 | 0
提问
Does isAlways Make an Unwarranted Assumption that a Variable is real?
Define a sym variable syms v isAlways can't prove that v is real. Makes sense. isAlways(in(v,'real')) Now make an assumption...
2 months 前 | 0 个回答 | 2
