Question

How to generate code for a model with tunable parameter avoiding an algebraic loop?

How can one generate C code for the attached model? Parameter Td needs to be tunable ion the generated code. Simulink compla...

5 years ago | 0 answers | 0

Question

When will MATLAB 2014b release?

I noticed that in the past few years the "b" versions were released almost all in early September but this year it looks like it...

5 years ago | 5 answers | 1

Answered

Clean variables of worskpace from GUIDE

You can send commands to base workspace using the evalin() function as you mentioned. For example you can say: evalin('base'...

Clean variables of worskpace from GUIDE

You can send commands to base workspace using the evalin() function as you mentioned. For example you can say: evalin('base'...

6 years ago | 0

| accepted

Answered

From cartesian to polar with points

vectors = V(2:2:end) - V(1:2:end); % vector has half the size(1) of V X = vector(:,1); Y = vector(:,2); [THETA,RHO]...

From cartesian to polar with points

vectors = V(2:2:end) - V(1:2:end); % vector has half the size(1) of V X = vector(:,1); Y = vector(:,2); [THETA,RHO]...

6 years ago | 0

Answered

saveas command saves plot with black background and no axis lables

if your platform is windows go to display settings for the screen and change to a "classic view".

saveas command saves plot with black background and no axis lables

if your platform is windows go to display settings for the screen and change to a "classic view".

6 years ago | 0

Answered

Help with errors - Unable to meet integration tolerances, Time integration failed, Attempted to access u(5), index out of bounds because numel (u)=4

As far as for a PDE, if you want to make sure that this singularity is something related to your numerical integration method or...

Help with errors - Unable to meet integration tolerances, Time integration failed, Attempted to access u(5), index out of bounds because numel (u)=4

As far as for a PDE, if you want to make sure that this singularity is something related to your numerical integration method or...

6 years ago | 0

| accepted

Answered

Simulink bloc to check if a condition is true during a period of time

You can use a *"Weighted Sample Time"* block to know what's the sampling time and an *"If"* block to create a condition. If y...

Simulink bloc to check if a condition is true during a period of time

You can use a *"Weighted Sample Time"* block to know what's the sampling time and an *"If"* block to create a condition. If y...

6 years ago | 0

Answered

GUI throws error: Attempt to reference field of non-structure array.

You are probably trying to use, handles.something where you have not previously defined it in the callback function or ...

GUI throws error: Attempt to reference field of non-structure array.

You are probably trying to use, handles.something where you have not previously defined it in the callback function or ...

6 years ago | 0

Answered

How to set Matlab do display all calculation results?

When the plotted data does not correspond to the whole "time span", it is usually because of that the time span is too large in ...

How to set Matlab do display all calculation results?

When the plotted data does not correspond to the whole "time span", it is usually because of that the time span is too large in ...

6 years ago | 0

Answered

who knows how to convert double to cell so i can get a 2D plot ?

mat2cell() cell2mat()

who knows how to convert double to cell so i can get a 2D plot ?

mat2cell() cell2mat()

6 years ago | 0

Answered

Help with Simulink system?

In Simulink, equations are integrated in time. Your system doesn't seem to have governing (continuous or discrete) equations, in...

Help with Simulink system?

In Simulink, equations are integrated in time. Your system doesn't seem to have governing (continuous or discrete) equations, in...

6 years ago | 0

Answered

How I can generate a continuous signal using a solver with fixed step size?

You need to let your tmax be 0.4 and solve then discard the data for 0.3<t<0.4

How I can generate a continuous signal using a solver with fixed step size?

You need to let your tmax be 0.4 and solve then discard the data for 0.3<t<0.4

6 years ago | 0

Answered

How do I add 2 Y axis to my MATLAB Plot?

Look up plotyy() in the documentation.

How do I add 2 Y axis to my MATLAB Plot?

Look up plotyy() in the documentation.

6 years ago | 0

Answered

GUI Push button Help !

Open your GUI figure file by right clicking on its name in the MATLAB current folder window and choosing GUIDE. Find the push...

GUI Push button Help !

Open your GUI figure file by right clicking on its name in the MATLAB current folder window and choosing GUIDE. Find the push...

6 years ago | 0

| accepted

Answered

ode45 - Does matlab keep track of derivatives which can be recalled?

Re-formulate your equations from x_dot = f(t,x,x_dot) to g(t,x,x_dot) = f(t,x,x_dot) - x_dot = 0 and then use ...

ode45 - Does matlab keep track of derivatives which can be recalled?

Re-formulate your equations from x_dot = f(t,x,x_dot) to g(t,x,x_dot) = f(t,x,x_dot) - x_dot = 0 and then use ...

6 years ago | 0

| accepted

Answered

How to resolve "Conversion to double from cell is not possible."

use cell2mat()

How to resolve "Conversion to double from cell is not possible."

use cell2mat()

6 years ago | 3

Answered

Multi Dimensional Cell Array

maxsize1 = 100; maxsize2 = 100; maxsize3 = 100; mycell = cell(maxsize1 ,maxsize2 ,maxsize3 ); mycell{1,1,1} = A1; ...

Multi Dimensional Cell Array

maxsize1 = 100; maxsize2 = 100; maxsize3 = 100; mycell = cell(maxsize1 ,maxsize2 ,maxsize3 ); mycell{1,1,1} = A1; ...

6 years ago | 0

Answered

how Can I Know that two Blocs were connected in the same subsystem?

Use get_param to get the parameter of the two blocks. Find out the lines connected to the two blocks with get_param . ...

how Can I Know that two Blocs were connected in the same subsystem?

Use get_param to get the parameter of the two blocks. Find out the lines connected to the two blocks with get_param . ...

6 years ago | 0

Answered

Calling a function f inside f,how can we do this

Just as a side issue: You better change the name of the function from a one letter name "f" to at least a 2 letter name. I remem...

Calling a function f inside f,how can we do this

Just as a side issue: You better change the name of the function from a one letter name "f" to at least a 2 letter name. I remem...

6 years ago | 0

Question

supporting cells for code generation

Do MATLAB compiler and MATLAB Builder NE support cell type variables? I'm asking because I just found out MATLAB coder does...

6 years ago | 1 answer | 0

Answered

Adding up words in matrices on Matlab

b = {'Hello' 'my' 'name' 'is' 'kevin' 'Susan'}; a = strsplit('kevin, kevin my baby I am telling you Hello Hello my name is ...

Adding up words in matrices on Matlab

b = {'Hello' 'my' 'name' 'is' 'kevin' 'Susan'}; a = strsplit('kevin, kevin my baby I am telling you Hello Hello my name is ...

6 years ago | 0

Answered

Movefile access is denied error

MATLAB has opened to write to file and hasn't closed them... Exit MATLAB then try moving/deleting the files.

Movefile access is denied error

MATLAB has opened to write to file and hasn't closed them... Exit MATLAB then try moving/deleting the files.

6 years ago | 0

Answered

I want to know how to convert these lines of code into c

Use MATLAB coder to convert matlab code into C code.

I want to know how to convert these lines of code into c

Use MATLAB coder to convert matlab code into C code.

6 years ago | 0

Answered

set_param Command calls OpeningFcn

If the GUI is not open, as soon as you call to open it, the OpeningFcn runs. Now its up to you what to put in the Opening Fcn. Y...

set_param Command calls OpeningFcn

If the GUI is not open, as soon as you call to open it, the OpeningFcn runs. Now its up to you what to put in the Opening Fcn. Y...

6 years ago | 0

Answered

tic toc in a GUI

tic toc gives you the total elapsed amount of time. There is no such meaning of all the instances... you cannot save time instan...

tic toc in a GUI

tic toc gives you the total elapsed amount of time. There is no such meaning of all the instances... you cannot save time instan...

6 years ago | 0

Answered

How can I get the value from an inner callback function to an outer function?

assigin('caller','a',20) creates a parameter a in the caller function and assigns 20 to it. assigin('base','a',20) do...

How can I get the value from an inner callback function to an outer function?

assigin('caller','a',20) creates a parameter a in the caller function and assigns 20 to it. assigin('base','a',20) do...

6 years ago | 0

Answered

Vectorizing inside a loop

The problem with matrix(i:n:end,4:6)=y(i,:)-matrix(i,1:3); is that the first index i:n:end is a vector and does not cor...

Vectorizing inside a loop

The problem with matrix(i:n:end,4:6)=y(i,:)-matrix(i,1:3); is that the first index i:n:end is a vector and does not cor...

6 years ago | 0

Answered

how matlab calculate the sqrt of complex number?

usually powers of between 0 and 1 of complex numbers have multiple answers! As an example, (-3-6i)^(1/2) [THETA,RHO] = ...

how matlab calculate the sqrt of complex number?

usually powers of between 0 and 1 of complex numbers have multiple answers! As an example, (-3-6i)^(1/2) [THETA,RHO] = ...

6 years ago | 0

Answered

Is it possible to terminate ode45 once a certain condition is met during integration?

to stop the integration you need to define an "event" function. Loop up ODE45 documentation and see how you can define the event...

Is it possible to terminate ode45 once a certain condition is met during integration?

to stop the integration you need to define an "event" function. Loop up ODE45 documentation and see how you can define the event...

6 years ago | 0

Answered

Delete double cell array entries

CellArray={[1 2 3] [1 2] [3 5 6 7] [1 2] [2 4] }; NewCellArray = [CellArray(1:3) CellArray(5)];

Delete double cell array entries

CellArray={[1 2 3] [1 2] [3 5 6 7] [1 2] [2 4] }; NewCellArray = [CellArray(1:3) CellArray(5)];

6 years ago | 0