Answered

How can I fix value of vector inside for loop ?

Your assignment is not quite clear but to the best understandinbg of mine. Note that repelem(A,1) if A is a scalar, the result i...

How can I fix value of vector inside for loop ?

Your assignment is not quite clear but to the best understandinbg of mine. Note that repelem(A,1) if A is a scalar, the result i...

26 days ago | 1

| accepted

Answered

all ODE function returns NaN

There are two ways to address this issue. (1) Let ode15s to select appropriate step size; (2) make the step size much smaller th...

all ODE function returns NaN

There are two ways to address this issue. (1) Let ode15s to select appropriate step size; (2) make the step size much smaller th...

26 days ago | 0

Answered

Solving for Zeros Across a Range

There is an err in the loop in i = linspace(1,I) leads to non integer value that is NOT acceptable for an index. Here is a corre...

Solving for Zeros Across a Range

There is an err in the loop in i = linspace(1,I) leads to non integer value that is NOT acceptable for an index. Here is a corre...

26 days ago | 0

Answered

How to save the scatter plot with and without transparency

Use exportgraphics() and also, note where the set() command for figure a and b is used and where exportgraphics() is used, e.g.:...

How to save the scatter plot with and without transparency

Use exportgraphics() and also, note where the set() command for figure a and b is used and where exportgraphics() is used, e.g.:...

26 days ago | 0

Answered

Exported Regression Model is outputting NaN's when given new data.

There is one crtical point that is in the input data for the support vector machine regression model the input data needs to be ...

Exported Regression Model is outputting NaN's when given new data.

There is one crtical point that is in the input data for the support vector machine regression model the input data needs to be ...

26 days ago | 0

| accepted

Answered

Recovering shape of periodically sampled signal in near resonance conditions

As understood your question correctly, is that you are trying to get the shape function which is the envelope thata can be compu...

Recovering shape of periodically sampled signal in near resonance conditions

As understood your question correctly, is that you are trying to get the shape function which is the envelope thata can be compu...

1 month ago | 0

Answered

Recovering shape of periodically sampled signal in near resonance conditions

There are several fucntions of MATLAB which can be used in such exercises. They are interp1(), interp2, interpn,pchip, spline, g...

Recovering shape of periodically sampled signal in near resonance conditions

There are several fucntions of MATLAB which can be used in such exercises. They are interp1(), interp2, interpn,pchip, spline, g...

1 month ago | 0

Answered

Assign a row vector to a row of an array using logical indexing to omit certain values

As you stated that Q and G are zero matrices generated for memoty allocation if so, and you want to to fill out the values of Q ...

Assign a row vector to a row of an array using logical indexing to omit certain values

As you stated that Q and G are zero matrices generated for memoty allocation if so, and you want to to fill out the values of Q ...

1 month ago | 0

Answered

Modeling using 6 differential equation and a constraint?

The problem is with this [ ] assigning step in your code: v = [ ]; What is the purpose of diving a number by an empty variable...

Modeling using 6 differential equation and a constraint?

The problem is with this [ ] assigning step in your code: v = [ ]; What is the purpose of diving a number by an empty variable...

1 month ago | 0

Answered

how to use elements from array to sort data

Here is the corrected code: numdata=readmatrix("res Data.xlsx"); Q = numdata(1:5, :)'; F = numdata(6:10, :)';

how to use elements from array to sort data

Here is the corrected code: numdata=readmatrix("res Data.xlsx"); Q = numdata(1:5, :)'; F = numdata(6:10, :)';

1 month ago | 1

Answered

How to calculate 95% confidence interval using regression analysis?

If there is a linear fit model for x vs. y(x), then fitlm() can be used, e.g.: x = (0:.1:13)'; Noise = 35*randn(size(x)); y =...

How to calculate 95% confidence interval using regression analysis?

If there is a linear fit model for x vs. y(x), then fitlm() can be used, e.g.: x = (0:.1:13)'; Noise = 35*randn(size(x)); y =...

1 month ago | 0

| accepted

Answered

Solving matrix differential equation

It looks likse sizes F1 and F2 are coherent with R1 and R2. The only question in your given exercise is R1' and R2' are transpo...

Solving matrix differential equation

It looks likse sizes F1 and F2 are coherent with R1 and R2. The only question in your given exercise is R1' and R2' are transpo...

1 month ago | 0

Answered

Magitude from a three phase signal

Here is how to perform FFT and compute the phase angle values in rad: data = readmatrix('D_Sample.xlsx'); % Sample data im...

Magitude from a three phase signal

Here is how to perform FFT and compute the phase angle values in rad: data = readmatrix('D_Sample.xlsx'); % Sample data im...

1 month ago | 0

Answered

Magitude from a three phase signal

Simulink -> Simscape toolbox, there is a block to compute magnitude and angle calculation: Calculate the magnitude and phase of...

Magitude from a three phase signal

Simulink -> Simscape toolbox, there is a block to compute magnitude and angle calculation: Calculate the magnitude and phase of...

1 month ago | 0

Answered

Grouping Categories in Scatter Plot

If understood your question correctly, here is one example how to address this issue: DATA = randi(100, 25, 1); BIN = discreti...

Grouping Categories in Scatter Plot

If understood your question correctly, here is one example how to address this issue: DATA = randi(100, 25, 1); BIN = discreti...

1 month ago | 0

Answered

What is the difference between "any" and "all" function?

There is one significant difference between any() and all(). Here are definitions: (1) any() - any True if any element of a ...

What is the difference between "any" and "all" function?

There is one significant difference between any() and all(). Here are definitions: (1) any() - any True if any element of a ...

1 month ago | 1

Answered

why Code generations of 1D and 2D lookup are same ?

In case, you are using Simulink, use block 1D or 2D lookup table blocks: https://www.mathworks.com/help/simulink/lookup-table...

why Code generations of 1D and 2D lookup are same ?

In case, you are using Simulink, use block 1D or 2D lookup table blocks: https://www.mathworks.com/help/simulink/lookup-table...

1 month ago | 0

| accepted

Answered

Generation of basic signals

In MATLAB and Simulink, there are few built in functions to generate, such signals as unit step, impulse, unit ramp, sine wave o...

Generation of basic signals

In MATLAB and Simulink, there are few built in functions to generate, such signals as unit step, impulse, unit ramp, sine wave o...

1 month ago | 0

Answered

Matlab Transfer function multiple single s terms

Here it is: C1 = 0.000000000150; C2 = 0.000000000470; R1 = 10000; R2 = 180000; R3 = 2700; R4 = 56000; G = (R3+R4)/R3; ...

Matlab Transfer function multiple single s terms

Here it is: C1 = 0.000000000150; C2 = 0.000000000470; R1 = 10000; R2 = 180000; R3 = 2700; R4 = 56000; G = (R3+R4)/R3; ...

1 month ago | 0

| accepted

Answered

How to generate model output given a transfer function and input signal

use tfestimate() - here is documentation how to use it: https://www.mathworks.com/help/ident/ref/tfest.html#btkf8hm-2

How to generate model output given a transfer function and input signal

use tfestimate() - here is documentation how to use it: https://www.mathworks.com/help/ident/ref/tfest.html#btkf8hm-2

1 month ago | 0

Answered

help with Plot a Parametric Equation

Here is a simple example code to get it done: N = 1e4; p = linspace(0,1); Na = linspace(1, 1e4); Nb = linspace(1, 6e3); Nc ...

help with Plot a Parametric Equation

Here is a simple example code to get it done: N = 1e4; p = linspace(0,1); Na = linspace(1, 1e4); Nb = linspace(1, 6e3); Nc ...

1 month ago | 0

| accepted

Answered

How to find x,y coordinates.

(1) Using the data to be plotted y = @(t)2*t.^2+3*t-5; t = 0:2:8; f = y(t); tnew = 0:.2:8; y = interp1(t, f, tnew); figure...

How to find x,y coordinates.

(1) Using the data to be plotted y = @(t)2*t.^2+3*t-5; t = 0:2:8; f = y(t); tnew = 0:.2:8; y = interp1(t, f, tnew); figure...

1 month ago | 0

| accepted

Answered

change color of bar plot

Here is one example how to get such bar chart: y = [12 22 23; 21 25 26; 24 18 19; 22 17 15]; bar(y,'stacked') legend({'Set # ...

change color of bar plot

Here is one example how to get such bar chart: y = [12 22 23; 21 25 26; 24 18 19; 22 17 15]; bar(y,'stacked') legend({'Set # ...

1 month ago | 1

Answered

timer doesn't work

Here is how it can be attained: Tspan = 240; % Time span 240 seconds t = timer('TimerFcn', 'stat=false; disp(''Timer!'')', 'S...

timer doesn't work

Here is how it can be attained: Tspan = 240; % Time span 240 seconds t = timer('TimerFcn', 'stat=false; disp(''Timer!'')', 'S...

1 month ago | 0

Answered

How to get .m file definition programmatically?

It is possible differentiate .m and .mlx files by referring to their file extensions or simlarly, Simulink's .mdl and .slx or sl...

How to get .m file definition programmatically?

It is possible differentiate .m and .mlx files by referring to their file extensions or simlarly, Simulink's .mdl and .slx or sl...

1 month ago | 0

Answered

timer doesn't work

Here it shows that it is working. An alternative way is to use [tic .. toc] to count time if this is the objective: Tspan = 10;...

timer doesn't work

Here it shows that it is working. An alternative way is to use [tic .. toc] to count time if this is the objective: Tspan = 10;...

1 month ago | 0

Answered

Removing numerical data from txt file

Here is the solution to keep the time of data collected in the external file: unzip('https://www.mathworks.com/matlabcentral/an...

Removing numerical data from txt file

Here is the solution to keep the time of data collected in the external file: unzip('https://www.mathworks.com/matlabcentral/an...

1 month ago | 0

Answered

MATLAB is not deleting requested values.

Here is one example that shows it works: D = readmatrix('Data2.xlsx', 'Sheet', 1) % All imported D(1:2,:)=[] ...

MATLAB is not deleting requested values.

Here is one example that shows it works: D = readmatrix('Data2.xlsx', 'Sheet', 1) % All imported D(1:2,:)=[] ...

1 month ago | 0

| accepted

Answered

How I can find intersection point of direction vector and one of the given plane of 3d cube

Have reviewed this solution: https://www.mathworks.com/matlabcentral/answers/93623-how-do-i-plot-the-line-of-intersection-betwee...

How I can find intersection point of direction vector and one of the given plane of 3d cube

Have reviewed this solution: https://www.mathworks.com/matlabcentral/answers/93623-how-do-i-plot-the-line-of-intersection-betwee...

1 month ago | 0

Answered

Not able to run

Here is the corrected code (Note that the Initial Conditions were missing and some arbitrary values are taken. Therefore they ne...

Not able to run

Here is the corrected code (Note that the Initial Conditions were missing and some arbitrary values are taken. Therefore they ne...

1 month ago | 0