Here is the code：
clear all
clc
close all
load angles.mat
load vertices.mat
[vectors(:,1), vectors(:,2), vectors(:,3)] = sph2cart(angle_phi_theta(:,1), angle_phi_theta(:,2), 1);
quiver3(vertex_segment(:,1),vertex_segment(:,2),vertex_segment(:,3),…
vectors(:,1),vectors(:,2),vectors(:,3),0.8,’Color’,’green’,’LineWidth’,1);hold on;

The results:

Problem: I think the resulting vectors should converge uniformly or diverge uniformly, but why do they alternate like this? What went wrong?Here is the code：
clear all
clc
close all
load angles.mat
load vertices.mat
[vectors(:,1), vectors(:,2), vectors(:,3)] = sph2cart(angle_phi_theta(:,1), angle_phi_theta(:,2), 1);
quiver3(vertex_segment(:,1),vertex_segment(:,2),vertex_segment(:,3),…
vectors(:,1),vectors(:,2),vectors(:,3),0.8,’Color’,’green’,’LineWidth’,1);hold on;

The results:

Problem: I think the resulting vectors should converge uniformly or diverge uniformly, but why do they alternate like this? What went wrong? Here is the code：
clear all
clc
close all
load angles.mat
load vertices.mat
[vectors(:,1), vectors(:,2), vectors(:,3)] = sph2cart(angle_phi_theta(:,1), angle_phi_theta(:,2), 1);
quiver3(vertex_segment(:,1),vertex_segment(:,2),vertex_segment(:,3),…
vectors(:,1),vectors(:,2),vectors(:,3),0.8,’Color’,’green’,’LineWidth’,1);hold on;

The results:

Problem: I think the resulting vectors should converge uniformly or diverge uniformly, but why do they alternate like this? What went wrong? coordinate transformation, sph2cart, vectors MATLAB Answers — New Questions

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i am trying to build the exact modle listed on the site but finding challenges navigating through the steps provided .the topic is" Fault Detection and Localization in Three-Phase Power Transmission Using Deep Signal Anomaly Detector in Simulink". i would be very glad if someone can assist me do it. or if anyone has already done it. the person can kindly share his file to assist me. thank youi am trying to build the exact modle listed on the site but finding challenges navigating through the steps provided .the topic is" Fault Detection and Localization in Three-Phase Power Transmission Using Deep Signal Anomaly Detector in Simulink". i would be very glad if someone can assist me do it. or if anyone has already done it. the person can kindly share his file to assist me. thank you i am trying to build the exact modle listed on the site but finding challenges navigating through the steps provided .the topic is" Fault Detection and Localization in Three-Phase Power Transmission Using Deep Signal Anomaly Detector in Simulink". i would be very glad if someone can assist me do it. or if anyone has already done it. the person can kindly share his file to assist me. thank you #simulink, #deep signal anomaly detector #matlab MATLAB Answers — New Questions

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Hello everyone,
I’m interested in using Bayesian neural networks to model a dynamical system, similar to the examples presented here: https://www.mathworks.com/help/ident/nonlinear-model-identification.html.
So far, the only relevant resource I’ve found is this page: https://www.mathworks.com/help/deeplearning/ug/train-bayesian-neural-network.html, which demonstrates how to train a Bayesian neural network to predict the rotation of handwritten digits.
Would the methodology and functions shown in that example be suitable for my case? Specifically, can they be adapted to train a model using time series data—i.e., sequences of input and output over time?
Thank you in advance for your support!

MarcoHello everyone,
I’m interested in using Bayesian neural networks to model a dynamical system, similar to the examples presented here: https://www.mathworks.com/help/ident/nonlinear-model-identification.html.
So far, the only relevant resource I’ve found is this page: https://www.mathworks.com/help/deeplearning/ug/train-bayesian-neural-network.html, which demonstrates how to train a Bayesian neural network to predict the rotation of handwritten digits.
Would the methodology and functions shown in that example be suitable for my case? Specifically, can they be adapted to train a model using time series data—i.e., sequences of input and output over time?
Thank you in advance for your support!

Marco Hello everyone,
I’m interested in using Bayesian neural networks to model a dynamical system, similar to the examples presented here: https://www.mathworks.com/help/ident/nonlinear-model-identification.html.
So far, the only relevant resource I’ve found is this page: https://www.mathworks.com/help/deeplearning/ug/train-bayesian-neural-network.html, which demonstrates how to train a Bayesian neural network to predict the rotation of handwritten digits.
Would the methodology and functions shown in that example be suitable for my case? Specifically, can they be adapted to train a model using time series data—i.e., sequences of input and output over time?
Thank you in advance for your support!

Marco bayes, neural networks, system identification, deep learning, uncertainty quantification MATLAB Answers — New Questions

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During the installation of Matlab 2015a, at a level of 99% a pop-up window appeared with the following notification: " Unknown Error. The application encountered an unexpected error and needs to close. You may want to try re-installing your product(s). More information can be found at C:users…Tempmathworks_cform.log".
Why does this error appear during installation?
How can I solve that?During the installation of Matlab 2015a, at a level of 99% a pop-up window appeared with the following notification: " Unknown Error. The application encountered an unexpected error and needs to close. You may want to try re-installing your product(s). More information can be found at C:users…Tempmathworks_cform.log".
Why does this error appear during installation?
How can I solve that? During the installation of Matlab 2015a, at a level of 99% a pop-up window appeared with the following notification: " Unknown Error. The application encountered an unexpected error and needs to close. You may want to try re-installing your product(s). More information can be found at C:users…Tempmathworks_cform.log".
Why does this error appear during installation?
How can I solve that? error, installation MATLAB Answers — New Questions

​

I am attempting to create a class the will have two line ROI objects. This class should have a callback function for when the lines are moved by the user. I am able to add a listener to the lines but only if the callback function is static.
Is it possible to do this without using a static method? Ultimatly I would like to use the callback method to compare the positions of the two lines as one of them is moved.
classdef imageRange < handle

properties
region double
line1
line2
rect
X double
end

methods
function obj = imageRange(axes, dataAxes)
x = dataAxes{1,4};
y = dataAxes{2,4};
midpoint = mean([x(1),x(3)]);

obj.X = floor(midpoint);

obj.rect = rectangle(axes,’Position’,[obj.X,y(1),…
ceil(midpoint)-floor(midpoint), y(3) – y(1)]);
obj.rect.EdgeColor = [0,0,0,0];
obj.rect.FaceColor = [.5,.5,.5];
obj.rect.FaceAlpha = .1;

obj.line1 = drawline(axes,’Position’,[floor(midpoint), y(1); …
floor(midpoint), y(3)],’Color’,[0.6350 0.0780 0.1840], …
‘InteractionsAllowed’,’translate’, …
‘MarkerSize’,.1, …
‘LineWidth’,1);

addlistener(obj.line1, ‘MovingROI’, @(src,event)obj.allevents(src,event));

obj.line2 = drawline(axes,’Position’,[ceil(midpoint), y(1); …
ceil(midpoint), y(3)],’Color’,[0 0.4470 0.7410], …
‘InteractionsAllowed’,’translate’, …
‘MarkerSize’,.1, …
‘LineWidth’,1);

obj.region = dataAxes{1,5};
end
end

methods (Static)
function allevents(src,event)
event.PreviousPosition(1,1)
end
end
endI am attempting to create a class the will have two line ROI objects. This class should have a callback function for when the lines are moved by the user. I am able to add a listener to the lines but only if the callback function is static.
Is it possible to do this without using a static method? Ultimatly I would like to use the callback method to compare the positions of the two lines as one of them is moved.
classdef imageRange < handle

properties
region double
line1
line2
rect
X double
end

methods
function obj = imageRange(axes, dataAxes)
x = dataAxes{1,4};
y = dataAxes{2,4};
midpoint = mean([x(1),x(3)]);

obj.X = floor(midpoint);

obj.rect = rectangle(axes,’Position’,[obj.X,y(1),…
ceil(midpoint)-floor(midpoint), y(3) – y(1)]);
obj.rect.EdgeColor = [0,0,0,0];
obj.rect.FaceColor = [.5,.5,.5];
obj.rect.FaceAlpha = .1;

obj.line1 = drawline(axes,’Position’,[floor(midpoint), y(1); …
floor(midpoint), y(3)],’Color’,[0.6350 0.0780 0.1840], …
‘InteractionsAllowed’,’translate’, …
‘MarkerSize’,.1, …
‘LineWidth’,1);

addlistener(obj.line1, ‘MovingROI’, @(src,event)obj.allevents(src,event));

obj.line2 = drawline(axes,’Position’,[ceil(midpoint), y(1); …
ceil(midpoint), y(3)],’Color’,[0 0.4470 0.7410], …
‘InteractionsAllowed’,’translate’, …
‘MarkerSize’,.1, …
‘LineWidth’,1);

obj.region = dataAxes{1,5};
end
end

methods (Static)
function allevents(src,event)
event.PreviousPosition(1,1)
end
end
end I am attempting to create a class the will have two line ROI objects. This class should have a callback function for when the lines are moved by the user. I am able to add a listener to the lines but only if the callback function is static.
Is it possible to do this without using a static method? Ultimatly I would like to use the callback method to compare the positions of the two lines as one of them is moved.
classdef imageRange < handle

properties
region double
line1
line2
rect
X double
end

methods
function obj = imageRange(axes, dataAxes)
x = dataAxes{1,4};
y = dataAxes{2,4};
midpoint = mean([x(1),x(3)]);

obj.X = floor(midpoint);

obj.rect = rectangle(axes,’Position’,[obj.X,y(1),…
ceil(midpoint)-floor(midpoint), y(3) – y(1)]);
obj.rect.EdgeColor = [0,0,0,0];
obj.rect.FaceColor = [.5,.5,.5];
obj.rect.FaceAlpha = .1;

obj.line1 = drawline(axes,’Position’,[floor(midpoint), y(1); …
floor(midpoint), y(3)],’Color’,[0.6350 0.0780 0.1840], …
‘InteractionsAllowed’,’translate’, …
‘MarkerSize’,.1, …
‘LineWidth’,1);

addlistener(obj.line1, ‘MovingROI’, @(src,event)obj.allevents(src,event));

obj.line2 = drawline(axes,’Position’,[ceil(midpoint), y(1); …
ceil(midpoint), y(3)],’Color’,[0 0.4470 0.7410], …
‘InteractionsAllowed’,’translate’, …
‘MarkerSize’,.1, …
‘LineWidth’,1);

obj.region = dataAxes{1,5};
end
end

methods (Static)
function allevents(src,event)
event.PreviousPosition(1,1)
end
end
end static methods, class MATLAB Answers — New Questions

​

I have to solve the sistem of differential equation odesys with the condition imposed in bc vector. I obtain the "Invalid Initial Condition" at the line where v is defined, even if the domain for the boundary condition is correct. I must keep it a symbolic solution and a0 is a costant.

%% ANALYTICAL MODEL FOR A DCB SPECIMEN UNDER THE CONDITION OF PRESCRIBED DISPLACEMENTS
%% Linear Elastic Phase
%———
syms x d v0(x) v1(x) v2(x) Lcz
%———
phi0 = -diff(v0,x);
M0 = E*I*diff(v0,x,2);
T0 = E*I*diff(v0,x,3);
phi1 = -diff(v1,x);
M1 = E*I*diff(v1,x,2);
T1 = E*I*diff(v1,x,3);
phi2 = -diff(v2,x);
M2 = E*I*diff(v2,x,2);
T2 = E*I*diff(v2,x,3);
%———
ode_0 = diff(v0,x,4) == 0;
ode_1 = diff(v1,x,4) – 2*w*(lambda^2)*diff(v1,x,2) + (lambda^4)*v1 == 0;
ode_2 = diff(v2,x,4) + 2*ps*(k^2)*diff(v2,x,2) – k^4*(v2 – d_c/2) == 0;
%———
syms xL xR xI
xL = -a0 – Lcz;
xI = -Lcz;
xR = L – a0 – Lcz;
c1 = v0(xL) == d/2;
c2 = M0(xL) == 0;
c3 = v0(xI) == v2(xI);
c4 = phi0(xI) == phi2(xI);
c5 = M0(xI) == M2(xI);
c6 = T0(xI) == T2(xI);
c7 = v1(0) == v2(0);
c8 = phi1(0) == phi2(0);
c9 = M1(0) == M2(0);
c10 = T1(0) == T2(0);
c11 = v1(xR) == 0;
c12 = phi1(xR) == 0;
%———
odesys = [ode_0; ode_1; ode_2];
bc = [c1; c2; c3; c4; c5; c6; c7; c8; c9; c10; c11; c12];
v = dsolve(odesys, bc);
%———
v1_sol(x,d,Lcz) = simplify(v.v1);
v0_sol(x,d,Lcz) = simplify(v.v0);
v2_sol(x,d,Lcz) = simplify(v.v2);
phi0_sol(x,d,Lcz) = diff(v0_sol,x);
phi1_sol(x,d,Lcz) = diff(v1_sol,x);
phi2_sol(x,d,Lcz) = diff(v2_sol,x);
M0_sol(x,d,Lcz) = E*I*diff(v0_sol,x,2);
M1_sol(x,d,Lcz) = E*I*diff(v1_sol,x,2);
M2_sol(x,d,Lcz) = E*I*diff(v2_sol,x,2);
T0_sol(x,d,Lcz) = E*I*diff(v0_sol,x,3);
T1_sol(x,d,Lcz) = E*I*diff(v1_sol,x,3);
T2_sol(x,d,Lcz) = E*I*diff(v2_sol,x,3);
%———
d_lim = solve(v0_sol(0,d,0) == d_0/2,d);
% d_max = solve(v0_sol(0,d,0) == d_0/2,d);
% Lcz_max = solve(v2_sol(-Lcz,d_max,Lcz) – d_c/2 == 0, x,[0 50]);
[d_max, Lcz_max] = solve([v1_sol(0,d,Lcz) – d_0/2 == 0, v2_sol(-Lcz,d_max,Lcz) – d_c/2 == 0],[d,Lcz]);I have to solve the sistem of differential equation odesys with the condition imposed in bc vector. I obtain the "Invalid Initial Condition" at the line where v is defined, even if the domain for the boundary condition is correct. I must keep it a symbolic solution and a0 is a costant.

%% ANALYTICAL MODEL FOR A DCB SPECIMEN UNDER THE CONDITION OF PRESCRIBED DISPLACEMENTS
%% Linear Elastic Phase
%———
syms x d v0(x) v1(x) v2(x) Lcz
%———
phi0 = -diff(v0,x);
M0 = E*I*diff(v0,x,2);
T0 = E*I*diff(v0,x,3);
phi1 = -diff(v1,x);
M1 = E*I*diff(v1,x,2);
T1 = E*I*diff(v1,x,3);
phi2 = -diff(v2,x);
M2 = E*I*diff(v2,x,2);
T2 = E*I*diff(v2,x,3);
%———
ode_0 = diff(v0,x,4) == 0;
ode_1 = diff(v1,x,4) – 2*w*(lambda^2)*diff(v1,x,2) + (lambda^4)*v1 == 0;
ode_2 = diff(v2,x,4) + 2*ps*(k^2)*diff(v2,x,2) – k^4*(v2 – d_c/2) == 0;
%———
syms xL xR xI
xL = -a0 – Lcz;
xI = -Lcz;
xR = L – a0 – Lcz;
c1 = v0(xL) == d/2;
c2 = M0(xL) == 0;
c3 = v0(xI) == v2(xI);
c4 = phi0(xI) == phi2(xI);
c5 = M0(xI) == M2(xI);
c6 = T0(xI) == T2(xI);
c7 = v1(0) == v2(0);
c8 = phi1(0) == phi2(0);
c9 = M1(0) == M2(0);
c10 = T1(0) == T2(0);
c11 = v1(xR) == 0;
c12 = phi1(xR) == 0;
%———
odesys = [ode_0; ode_1; ode_2];
bc = [c1; c2; c3; c4; c5; c6; c7; c8; c9; c10; c11; c12];
v = dsolve(odesys, bc);
%———
v1_sol(x,d,Lcz) = simplify(v.v1);
v0_sol(x,d,Lcz) = simplify(v.v0);
v2_sol(x,d,Lcz) = simplify(v.v2);
phi0_sol(x,d,Lcz) = diff(v0_sol,x);
phi1_sol(x,d,Lcz) = diff(v1_sol,x);
phi2_sol(x,d,Lcz) = diff(v2_sol,x);
M0_sol(x,d,Lcz) = E*I*diff(v0_sol,x,2);
M1_sol(x,d,Lcz) = E*I*diff(v1_sol,x,2);
M2_sol(x,d,Lcz) = E*I*diff(v2_sol,x,2);
T0_sol(x,d,Lcz) = E*I*diff(v0_sol,x,3);
T1_sol(x,d,Lcz) = E*I*diff(v1_sol,x,3);
T2_sol(x,d,Lcz) = E*I*diff(v2_sol,x,3);
%———
d_lim = solve(v0_sol(0,d,0) == d_0/2,d);
% d_max = solve(v0_sol(0,d,0) == d_0/2,d);
% Lcz_max = solve(v2_sol(-Lcz,d_max,Lcz) – d_c/2 == 0, x,[0 50]);
[d_max, Lcz_max] = solve([v1_sol(0,d,Lcz) – d_0/2 == 0, v2_sol(-Lcz,d_max,Lcz) – d_c/2 == 0],[d,Lcz]); I have to solve the sistem of differential equation odesys with the condition imposed in bc vector. I obtain the "Invalid Initial Condition" at the line where v is defined, even if the domain for the boundary condition is correct. I must keep it a symbolic solution and a0 is a costant.

%% ANALYTICAL MODEL FOR A DCB SPECIMEN UNDER THE CONDITION OF PRESCRIBED DISPLACEMENTS
%% Linear Elastic Phase
%———
syms x d v0(x) v1(x) v2(x) Lcz
%———
phi0 = -diff(v0,x);
M0 = E*I*diff(v0,x,2);
T0 = E*I*diff(v0,x,3);
phi1 = -diff(v1,x);
M1 = E*I*diff(v1,x,2);
T1 = E*I*diff(v1,x,3);
phi2 = -diff(v2,x);
M2 = E*I*diff(v2,x,2);
T2 = E*I*diff(v2,x,3);
%———
ode_0 = diff(v0,x,4) == 0;
ode_1 = diff(v1,x,4) – 2*w*(lambda^2)*diff(v1,x,2) + (lambda^4)*v1 == 0;
ode_2 = diff(v2,x,4) + 2*ps*(k^2)*diff(v2,x,2) – k^4*(v2 – d_c/2) == 0;
%———
syms xL xR xI
xL = -a0 – Lcz;
xI = -Lcz;
xR = L – a0 – Lcz;
c1 = v0(xL) == d/2;
c2 = M0(xL) == 0;
c3 = v0(xI) == v2(xI);
c4 = phi0(xI) == phi2(xI);
c5 = M0(xI) == M2(xI);
c6 = T0(xI) == T2(xI);
c7 = v1(0) == v2(0);
c8 = phi1(0) == phi2(0);
c9 = M1(0) == M2(0);
c10 = T1(0) == T2(0);
c11 = v1(xR) == 0;
c12 = phi1(xR) == 0;
%———
odesys = [ode_0; ode_1; ode_2];
bc = [c1; c2; c3; c4; c5; c6; c7; c8; c9; c10; c11; c12];
v = dsolve(odesys, bc);
%———
v1_sol(x,d,Lcz) = simplify(v.v1);
v0_sol(x,d,Lcz) = simplify(v.v0);
v2_sol(x,d,Lcz) = simplify(v.v2);
phi0_sol(x,d,Lcz) = diff(v0_sol,x);
phi1_sol(x,d,Lcz) = diff(v1_sol,x);
phi2_sol(x,d,Lcz) = diff(v2_sol,x);
M0_sol(x,d,Lcz) = E*I*diff(v0_sol,x,2);
M1_sol(x,d,Lcz) = E*I*diff(v1_sol,x,2);
M2_sol(x,d,Lcz) = E*I*diff(v2_sol,x,2);
T0_sol(x,d,Lcz) = E*I*diff(v0_sol,x,3);
T1_sol(x,d,Lcz) = E*I*diff(v1_sol,x,3);
T2_sol(x,d,Lcz) = E*I*diff(v2_sol,x,3);
%———
d_lim = solve(v0_sol(0,d,0) == d_0/2,d);
% d_max = solve(v0_sol(0,d,0) == d_0/2,d);
% Lcz_max = solve(v2_sol(-Lcz,d_max,Lcz) – d_c/2 == 0, x,[0 50]);
[d_max, Lcz_max] = solve([v1_sol(0,d,Lcz) – d_0/2 == 0, v2_sol(-Lcz,d_max,Lcz) – d_c/2 == 0],[d,Lcz]); dsolve, ode, symbolic MATLAB Answers — New Questions

​

Hi everyone,
I’m new to MATLAB, SPM and CAT12, and I’m learning how to perform Voxel-Based Morphometry .
I’ve already preprocessed a T1-weighted MRI image using CAT12 and obtained TIV statis. Now I’d like to extract regional gray matter volume information from the mwp1.nii file, based on anatomical regions defined by an atlas (e.g., AAL atlas).
Could someone please guide me on how to do this?
Thanks in advance!Hi everyone,
I’m new to MATLAB, SPM and CAT12, and I’m learning how to perform Voxel-Based Morphometry .
I’ve already preprocessed a T1-weighted MRI image using CAT12 and obtained TIV statis. Now I’d like to extract regional gray matter volume information from the mwp1.nii file, based on anatomical regions defined by an atlas (e.g., AAL atlas).
Could someone please guide me on how to do this?
Thanks in advance! Hi everyone,
I’m new to MATLAB, SPM and CAT12, and I’m learning how to perform Voxel-Based Morphometry .
I’ve already preprocessed a T1-weighted MRI image using CAT12 and obtained TIV statis. Now I’d like to extract regional gray matter volume information from the mwp1.nii file, based on anatomical regions defined by an atlas (e.g., AAL atlas).
Could someone please guide me on how to do this?
Thanks in advance! image segmentation, cat12, spm, mri, gray matter MATLAB Answers — New Questions

​

Hi,
As far as I read from the MATLAB website, the tools such as Matlab, Simulink, Embedded Coder,… are already ISO/IEC certified tools, but then, I am confused on the need for separate IEC certification kit available, to qualify those tools? Could you please clarify?
Thanks in advanceHi,
As far as I read from the MATLAB website, the tools such as Matlab, Simulink, Embedded Coder,… are already ISO/IEC certified tools, but then, I am confused on the need for separate IEC certification kit available, to qualify those tools? Could you please clarify?
Thanks in advance Hi,
As far as I read from the MATLAB website, the tools such as Matlab, Simulink, Embedded Coder,… are already ISO/IEC certified tools, but then, I am confused on the need for separate IEC certification kit available, to qualify those tools? Could you please clarify?
Thanks in advance iec61508, iso26262, toolbox, certification MATLAB Answers — New Questions

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