# Richard Crozier

### The University of Edinburgh

Professional Interests: Electrical Engineering, Renewable Energy

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**Content Feed**

Question

Level 2 S-Function block port sampling mode error

When I try to run a model containing Level-2 m-code S-Function block I have created I get the following error: Level-2 MATLAB S...

2 years ago | 1 answer | 0

### 1

answerQuestion

Can I use a C MEX function in Level-2 M-File S-Function for deployment to a speadgoat real-time PC?

I have created a Level-2 M-File S-Function which internally calls a C MEX function. This works fine in normal simulink, but is i...

2 years ago | 0 answers | 0

### 0

answersQuestion

How best to set Matlab Level 2 S-Function port sizes based on dialog parameters?

I'm creating a Level 2 S-Function with two inputs and one output port. One input port and one Output port will vary in size, bu...

2 years ago | 0 answers | 0

### 0

answersCan I have subdirectories in a +package directory?

The answer is no, you cannot have subdirectories in a package directory.

3 years ago | 0

| accepted

Question

How to get unique members of an array of handle classes?

I have an array of classdef object derived from handle. It is possible that some of these members could actually point to the sa...

4 years ago | 1 answer | 0

### 1

answerHow do I use live script (*.mlx) files in source control?

No you cannot use live scripts with any of the major version control systems such as svn, git or mercurial. They are a binary fo...

4 years ago | 4

Question

How can I use an existing Level-2 C S-Function in embedded application?

I have a simulink model which incorporates a Level-2 C code S-function. I would like to use Simulink Coder to build the model fo...

4 years ago | 1 answer | 0

### 1

answerQuestion

Does simulink scale ill-conditioned matrices provided to State-Space block?

The question title says it all really, does simulink scale ill-conditioned matrices provided to State-Space block? The help d...

4 years ago | 1 answer | 0

### 1

answerLining to static library using Mingw-w64

I figured out you can just change the lib name to end '.lib' instead of '.a'. This shouldn't work since a .a file is a different...

5 years ago | 0

| accepted

Question

Lining to static library using Mingw-w64

I want to create a mex file which links to a static library. This library was created using Mingw-w64 and has the |.a| file exte...

5 years ago | 1 answer | 0

### 1

answerQuestion

How is extrapolation performed in the Simulink Transport Delay block?

The Simulink Transport Delay block states that if the specified delay is smaller than the current time step extrapolation is per...

5 years ago | 1 answer | 0

### 1

answerQuestion

Why is my Matlab hgtransform matrix invalid?

I am attempting to apply a transform matrix by setting the |'Matrix'| property of a matlab hgtransform object. The transform mat...

5 years ago | 1 answer | 0

### 1

answerQuestion

How do I create a class with functional syntax, like griddedInterpolant?

The documentation for the griddedInterpolant has an example like the following: [X1, X2] = ndgrid(1:10,1:10); V = X1...

6 years ago | 1 answer | 1

### 1

answerHow to read xml file with binary data into Matlab? (VTK/VTU File)

The answer to determining the position was to calculate the character bit length from the first line read in like so: % o...

6 years ago | 0

| accepted

Question

How to read xml file with binary data into Matlab? (VTK/VTU File)

First of all, I've also asked this question on <http://stackoverflow.com/questions/38522178/how-to-read-xml-file-with-binary-dat...

6 years ago | 2 answers | 0

### 2

answersQuestion

Can I set AbsTol for only some components of solution?

I have a system of ODEs in matlab which I want to solve using the standard solvers. On some of the values of these components I ...

6 years ago | 0 answers | 0

### 0

answersQuestion

Can I solve ode without explicit expression for derivative?

I would like to solve an ODE using Matlab's solvers, but where I don't have an explicit expression for the derivative. Specifica...

6 years ago | 0 answers | 0

### 0

answershow to install a compiler for windows 8.1

You can't, there are no supported compilers for Windows 8.1 From <https://msdn.microsoft.com/en-us/windows/desktop/bg162891.a...

7 years ago | 0

Question

Can I have subdirectories in a +package directory?

I would like to know if it is possible to add subdirectories to a matlab package directory (denoted by a preceeding '+' in the d...

7 years ago | 3 answers | 3

### 3

answersQuestion

Why does Matlab set a custom LD_LIBRARY_PATH when execting "system" on Linux?

Why does Matlab set the LD_LIBRARA_PATH environment variable of the shell in which it executes "system" commands on Linux? I ...

7 years ago | 2 answers | 1

### 2

answersI have removed about 75 unnecessary folders. How do I easily remove them from my path?

A better long term solution is to use a script to generate your path every time you start matlab instead of hard coding the path...

9 years ago | 1

PC Reccomendations for MATLAB

Use an Amazon EC2 cloud machine. It will be upgraded regularly and you can later use the distributed computing toolbox to spread...

9 years ago | 0

how to solve Coupled equations including ODE and algebraic equations?

Well, the error says it all, you don't define EVI in the function trial.m, it's not passed in as a variable anywhere, and its no...

9 years ago | 0

| accepted

Slow Matlab startup if startup.m contains many path additions

build the path yourself and do a single call to addpath, addpath expects a single string containing path names separated by semi...

9 years ago | 0

| accepted

Question

Is there any workaround for the slow performance of path.m?

I use Matlab on multiple machines and generally do not have write access to the directory where the path is saved (i.e. I cannot...

9 years ago | 1 answer | 2

### 1

answerQuestion

How to get simulink library and block names for the add_block function?

Hello, I would like to create a Simulink model programatically, using commands such as add_block etc. However, I'm having tro...

9 years ago | 1 answer | 0

### 1

answerQuestion

Best way to determine if number is triangular number?

Hello, I would like to test if an integer is a triangular number, and am wondering what the best way to achieve this is. I am...

9 years ago | 3 answers | 0

### 3

answersUsing simulink as fitness function for GA

I think this might help you: http://stackoverflow.com/questions/5140013/executing-simulink-model-by-m-file-and-retrieving-the...

10 years ago | 0

GA (genetic algorithm) moves away from better values

But only the mean gets worse, the best improves with every generation, and this is all that matters surely? Random combinatio...

10 years ago | 0

Image processing in MATLAB/OpenCV

There is also a mex interface to opencv which may offer the best compromise, as the actual opencv processing is still done in na...

10 years ago | 0