Réponse apportée

how to import parameters (weights and bias) in simulink

Hi Ahmad, To bring fc1, fc2, fc3 and fc4 into the Malab function block as constant parameters, start from Configure MATLAB Fun...

how to import parameters (weights and bias) in simulink

Hi Ahmad, To bring fc1, fc2, fc3 and fc4 into the Malab function block as constant parameters, start from Configure MATLAB Fun...

2 mois il y a | 1

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Using logicals in arrayfun

rng(100) tempA = rand(10,18); tempB = 1:10; u = arrayfun(@(x,y) x{1}(1:y), num2cell(tempA,2), tempB.', 'UniformOutput', fals...

Using logicals in arrayfun

rng(100) tempA = rand(10,18); tempB = 1:10; u = arrayfun(@(x,y) x{1}(1:y), num2cell(tempA,2), tempB.', 'UniformOutput', fals...

2 mois il y a | 1

Question

How does Symbolic diff() Operate When the Order of Derivative is Symbolic?

Simple symbolic function syms n integer positive syms x real f(x) = x^n First, second, and sixth (just to check) derivatives...

2 mois il y a | 1 réponse | 0

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How to continually clock in data during a simulation within Simulink

Hi Dan, It appears that the output of the Bit to Integer Conversion block is a scalar, which can be checked by going to Debug -...

How to continually clock in data during a simulation within Simulink

Hi Dan, It appears that the output of the Bit to Integer Conversion block is a scalar, which can be checked by going to Debug -...

2 mois il y a | 0

Réponse apportée

Why such a fuss with ndgrid and meshgrid issues?

Hi Kristoffer, The inputs to griddata that can be in either meshgrid or ndgrid format are the query points in Xq and Yq. I thin...

Why such a fuss with ndgrid and meshgrid issues?

Hi Kristoffer, The inputs to griddata that can be in either meshgrid or ndgrid format are the query points in Xq and Yq. I thin...

2 mois il y a | 1

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How to add a time delay to a diagonal ss from a reside pole function?

Hi Joan, The problem appears to be with how bodeplot is unwrapping the phase. Here is the original code % Delay problem Ak =...

How to add a time delay to a diagonal ss from a reside pole function?

Hi Joan, The problem appears to be with how bodeplot is unwrapping the phase. Here is the original code % Delay problem Ak =...

2 mois il y a | 0

| A accepté

Réponse apportée

how to label the variance decomposition table

Check the doc page collintest and review how to use the VarNames input. Or, instead of pulling all the variables out from data,...

how to label the variance decomposition table

Check the doc page collintest and review how to use the VarNames input. Or, instead of pulling all the variables out from data,...

2 mois il y a | 1

| A accepté

Réponse apportée

PID controller, difference when graphing step function with PID control block in matlab and simulink

Hi hoang, The posted code doesn't result in the same figure as in the question s =tf('s'); g = 1.883e5/(s*(s^2+4466*s+6.43e6)...

PID controller, difference when graphing step function with PID control block in matlab and simulink

Hi hoang, The posted code doesn't result in the same figure as in the question s =tf('s'); g = 1.883e5/(s*(s^2+4466*s+6.43e6)...

2 mois il y a | 1

Réponse apportée

how to calculate singular values in collin test to detect multicollinearity

Hi NAFISA, Using the example from the the doc collintest load Data_Canada Output from collintest [sValues,condInx] = collint...

how to calculate singular values in collin test to detect multicollinearity

Hi NAFISA, Using the example from the the doc collintest load Data_Canada Output from collintest [sValues,condInx] = collint...

2 mois il y a | 1

Réponse apportée

FFT multiple input waves and plot on same graph

%% Input Signal fs = 20e3; numFilts = 32; % filter_number = numFilts; freq1 = 1000; % Hz Nperiods = 15; % we need more th...

FFT multiple input waves and plot on same graph

%% Input Signal fs = 20e3; numFilts = 32; % filter_number = numFilts; freq1 = 1000; % Hz Nperiods = 15; % we need more th...

2 mois il y a | 0

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Réponse apportée

How does nufft function work in matlab?

To get fft and nufft to yield the same results .... tmax = 12; n = 2^11; tau = 1; % Width of the gaussian pulse ...

How does nufft function work in matlab?

To get fft and nufft to yield the same results .... tmax = 12; n = 2^11; tau = 1; % Width of the gaussian pulse ...

2 mois il y a | 0

Réponse apportée

Temporarily Change Signal Line Names in Simulink

Hi Dhruv, At the risk of asking an obvious question, does the workflow require that the model be saved after modifying the gene...

Temporarily Change Signal Line Names in Simulink

Hi Dhruv, At the risk of asking an obvious question, does the workflow require that the model be saved after modifying the gene...

3 mois il y a | 0

Réponse apportée

Why do these methods to obtain the simulink model transfer functions return different results?

Hi BW, Define PI and F s = zpk('s'); PI = 1 + 2/s; F = 6; In the first case, the linerarizer computes the transfer functio...

Why do these methods to obtain the simulink model transfer functions return different results?

Hi BW, Define PI and F s = zpk('s'); PI = 1 + 2/s; F = 6; In the first case, the linerarizer computes the transfer functio...

3 mois il y a | 1

| A accepté

Réponse apportée

Simulink 3D matrix interpolation using pre-lookups

Hi Alborz, It looks like you're switching between 6x5 and 5x6 in your post. Assumign that a) the table is 6 x 5 x 2 as in the ...

Simulink 3D matrix interpolation using pre-lookups

Hi Alborz, It looks like you're switching between 6x5 and 5x6 in your post. Assumign that a) the table is 6 x 5 x 2 as in the ...

3 mois il y a | 0

| A accepté

Réponse apportée

Are there any alternatives to try/catch statements that are supported by code generation?

Hi Roop, Can you post the code of a simple Matab Function that illustrates how you're tyring to use a try/catch? I'm having tro...

Are there any alternatives to try/catch statements that are supported by code generation?

Hi Roop, Can you post the code of a simple Matab Function that illustrates how you're tyring to use a try/catch? I'm having tro...

3 mois il y a | 0

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Reconstruct time series from FFT components. There is a time shift error.

Hi Haifei, You may want to investigate why the data is not uniformly sampled and how that impacts the analysis. Does the other ...

Reconstruct time series from FFT components. There is a time shift error.

Hi Haifei, You may want to investigate why the data is not uniformly sampled and how that impacts the analysis. Does the other ...

3 mois il y a | 0

| A accepté

Réponse apportée

Simulink - How to create a conditional "if" block

Perhaps you can use a Relay block to model the desired behavior based on the heating/cooling analogy. The output of the Relay ca...

Simulink - How to create a conditional "if" block

Perhaps you can use a Relay block to model the desired behavior based on the heating/cooling analogy. The output of the Relay ca...

3 mois il y a | 0

| A accepté

Réponse apportée

Why do we use ifft instead of fft when looking at the spectrum of a sech pulse (uu) in this code?

Hi Siheon, Your interpretation of fft as going from time to frequency, and ifft as going from frequency to time, with fft and i...

Why do we use ifft instead of fft when looking at the spectrum of a sech pulse (uu) in this code?

Hi Siheon, Your interpretation of fft as going from time to frequency, and ifft as going from frequency to time, with fft and i...

3 mois il y a | 0

| A accepté

Réponse apportée

Is enabled subsystem confusing? (Enable Port)

Hi Ahmed, To me that looks like an error in the documentation. That parameter controls what happens to the states inside the su...

Is enabled subsystem confusing? (Enable Port)

Hi Ahmed, To me that looks like an error in the documentation. That parameter controls what happens to the states inside the su...

3 mois il y a | 0

| A accepté

Réponse apportée

Discrete convolution in time/Laplace domain

Simplest and most efficient approach would be to compute samples r_i = r(i*T) where T is the sampling period and then use conv t...

Discrete convolution in time/Laplace domain

Simplest and most efficient approach would be to compute samples r_i = r(i*T) where T is the sampling period and then use conv t...

3 mois il y a | 1

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Réponse apportée

Is the "kinematicTrajectory" function correct for calculating angular velocity?

Hi Erik, The code is comparing two different quantities: Here, T is the matrix that mutliplies the angular velocity vector res...

Is the "kinematicTrajectory" function correct for calculating angular velocity?

Hi Erik, The code is comparing two different quantities: Here, T is the matrix that mutliplies the angular velocity vector res...

3 mois il y a | 0

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Réponse apportée

Extracting Data from an Array of Arrays using a Loop?

Hi Kylen, To make sure I understand correctly .... at the end of the processing you have a variable called 'out' and it is an a...

Extracting Data from an Array of Arrays using a Loop?

Hi Kylen, To make sure I understand correctly .... at the end of the processing you have a variable called 'out' and it is an a...

3 mois il y a | 0

| A accepté

Réponse apportée

How to use previous answer in new calculation n times

A=[0.3 -0.2; -0.6 0.8]; B=[-14;2]; x=[1;2]; sys = ss(A,B,eye(2),0,-1); y = lsim(sys,ones(11,1),0:10,x); % y0 = x %y...

How to use previous answer in new calculation n times

A=[0.3 -0.2; -0.6 0.8]; B=[-14;2]; x=[1;2]; sys = ss(A,B,eye(2),0,-1); y = lsim(sys,ones(11,1),0:10,x); % y0 = x %y...

3 mois il y a | 2

Réponse apportée

Frequency response of a system operating at a fixed frequency

Hi Alberto, Conceptually, what you're doing is correct (though there are other alternatives to the input signal). Keep in mind ...

Frequency response of a system operating at a fixed frequency

Hi Alberto, Conceptually, what you're doing is correct (though there are other alternatives to the input signal). Keep in mind ...

3 mois il y a | 1

Réponse apportée

Designfilt and bandstopfir adds +320dB for some reason

Hi Andres, I don't have a complete answer, just an observation. Here's the original design with order 301 filterObject1 = des...

Designfilt and bandstopfir adds +320dB for some reason

Hi Andres, I don't have a complete answer, just an observation. Here's the original design with order 301 filterObject1 = des...

3 mois il y a | 0

| A accepté

Réponse apportée

hey so i need to repeat the code everytime to see and analyze the time responses for 20 different values of k. How can i do it at once and have the output for all the values?

Or use a model array plant = tf(20,[1 1 5]); k = realp('k',1); sys = feedback(k*plant,1); sysarr = sampleBlock(sys,'k'...

hey so i need to repeat the code everytime to see and analyze the time responses for 20 different values of k. How can i do it at once and have the output for all the values?

Or use a model array plant = tf(20,[1 1 5]); k = realp('k',1); sys = feedback(k*plant,1); sysarr = sampleBlock(sys,'k'...

3 mois il y a | 1

Réponse apportée

Even & Odd Discrete time Signals

Matlab doesn't support zero or negtaive indices, so it won't be possible to implement this operation using ordinary vector index...

Even & Odd Discrete time Signals

Matlab doesn't support zero or negtaive indices, so it won't be possible to implement this operation using ordinary vector index...

3 mois il y a | 0

Réponse apportée

Digital filter with lowpass, then filtfilt: different output

lowpass calls filtfilt (or executes code equivalent to filtfilt) only if the underlying filter is IIR. If it's FIR, as in the qu...

Digital filter with lowpass, then filtfilt: different output

lowpass calls filtfilt (or executes code equivalent to filtfilt) only if the underlying filter is IIR. If it's FIR, as in the qu...

3 mois il y a | 0

Réponse apportée

Assertion block does not stop simulation if I run the model with "sim" function

According to this doc page, pausing a simualtion while it's running is not supported when using the sim command. If in your act...

Assertion block does not stop simulation if I run the model with "sim" function

According to this doc page, pausing a simualtion while it's running is not supported when using the sim command. If in your act...

3 mois il y a | 0

Réponse apportée

HELP! Error using plot Vectors must be the same length. Error in Doc (line 94) plot(t, y);

Hi Matheus, The explanation for the error is that the fftm function is doing a "one-sided" FFT, hence it returns an output with...

HELP! Error using plot Vectors must be the same length. Error in Doc (line 94) plot(t, y);

Hi Matheus, The explanation for the error is that the fftm function is doing a "one-sided" FFT, hence it returns an output with...

3 mois il y a | 0

| A accepté