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Albert Yam


Ryerson University

133 total contributions since 2011

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Answered
Rapid accelerator - disable tunable parameter - issue with sizes of parameters
I think I have a solution, as I was looking and doing some research. Go to Model Explorer. Then "Base workspace", drag and dro...

2 years ago | 0

Question


Is it possible to override the mex32 check during code generation?
Matlab 2007a, Simulink 6.6.1 I have run into a situation where we have an s-function(mex32) generated from some source code. ...

6 years ago | 0 answers | 0

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answers

Answered
How to edit/modify a Bus Creator Simulink block via Matlab
For Matlab2007a, Simulink 6.6.1 >> add_block('simulink/Commonly Used Blocks/Bus Creator', 'test/BC1') >> set_param('test...

7 years ago | 0

Question


Detect Inf or Nan in Embedded Matlab Function block
Is there a way to detect an Inf or Nan being calculated inside an Embedded Matlab block. Simulink does not produce an error, but...

7 years ago | 1 answer | 0

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answer

Answered
MATLAB command line control of Simulink signal builder
Do you have to use a Signal builder? If you use a lookup table that references a variable 'mysignal' in the workspace, then rede...

7 years ago | 0

Answered
Share your favorite snippet or utility
I have a few shortcut buttons. I have the _clear all; clc_ separate from the _close all_ though (and an _fclose(all)_). I have o...

7 years ago | 1

Answered
MATLAB Answers Wish-list #2 (and bug reports)
_[From Lucas' answer]_ About accepting a 'comment' that is in an answer box. It has more to do with the interface, in my opin...

7 years ago | 1

Answered
Conditional Simulink Block Deletion?
Try mux_list = find_system('test2', 'LookUnderMasks', 'all', 'BlockType', 'Mux'); number_of_mux = size(mux_list); n...

7 years ago | 0

| accepted

Answered
Reorder inports of masked subsystem dynamically
Lucas' suggestion should be what you require, but from your description, you might be doing this more than once. I would sugg...

7 years ago | 1

Answered
Auto-connect block to existing line
How are you "getting the old block out out the way"? I never figured out how to leave lines in place. Last time I did somethi...

7 years ago | 1

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Solved


Set some matrix elements to zero
First get the maximum of each *row*, and afterwards set all the other elements to zero. For example, this matrix: 1 2 3 ...

7 years ago

Solved


Removing rows from a matrix is easy - but what about inserting rows?
Assume A is a 5-by-5 matrix. A([2,4],:) = [] is a quick way to remove rows 2 and 4. Can you find a quick way to insert rows into...

7 years ago

Answered
How do I preallocate a struct array from the importdata function (In a loop)
<http://blogs.mathworks.com/loren/2008/02/01/structure-initialization/>

7 years ago | 0

Answered
Matlab: command mex -setup can't find my C compiler
gcc 4.16 unsupported? <http://www.mathworks.com/support/compilers/R2009b/macintosh.html> <http://www.mathworks.com/support...

7 years ago | 0

Answered
Weird issue with Simulink model
find_system(gcs,'FindAll', 'on', 'Name', 'VariableName') %needed a sys I've never used the edit > find, but when I used fin...

7 years ago | 1

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Answered
How can I suppress that xlswrite automatically converts a double into a date?
Can you give an example of what you are experiencing in the OP? I have had a date appear, for me, but for a different purpose (n...

7 years ago | 0

Answered
Aligning the Inputs and Outputs through m script
Imagine a chart over layed on the subsystem. Draw where your margin lines are. xspacing = [inportL inportR outportL out...

7 years ago | 0

Answered
How to send continuous data from simulink block
Why do you need the 'pause'? If you want an input to 'change over time', use a look-up table, or signal generator. hm..deja ...

7 years ago | 0

Answered
How to 'effectively' stop outputing signals from the subsystem when it is not triggered on or not enabled?
Off the top of my head, At the output of your subsystem (outside), put a switch block, with a known 'invalid' constant (NaN? or...

7 years ago | 0

Answered
MATLAB Answers Wish-list #2 (and bug reports)
Is there any protocol about bumping? A guilt free way to bump an unanswered, uncommented question would be nice. Perhaps have ...

7 years ago | 0

Answered
How to tell Matlab to ignore NaNs in calculations/loops
How about just going low level. At the start of the loop (or where applicable), if any(isnan(VARIABLE)) continue ...

7 years ago | 0

Answered
How to Copy a block from libraray into simulink model?
Add _open_system_ at the top, and _close_system_ at the bottom, to your mask.

7 years ago | 1

Answered
How to get the Signal Names in the Bus Creator
Do you mean the names of the signals going in/out of the Bus Creator? lh = get_param(gcb,'LineHandles'); sigs_in = get_p...

7 years ago | 0

Answered
erasing particular rows of a vector
Look for the index of the elements that are zero. That is to say *'find'* them. Once you have them, you know that those index *'...

7 years ago | 0

Answered
unique function in matlab
I needed this as well, for R2007a [uA a b] = unique(A,'first'); C = A(sort(a));

7 years ago | 1

Answered
Multiple Variable For Loop
In the code posted, you do not have 'j' (this might be elsewhere in your code), in your example, not even sure why you need it. ...

7 years ago | 0

| accepted

Answered
Index exeeds matix dimensions in loading image folder.
If that is a direct copy of your code. Matlab is case sensitive, myFile and myfile. myFile = {myFolder.name}; ... myArr...

7 years ago | 0

Answered
Reading Text and Parsing by Character
rand.txt = 'thequickbrownfoxjumpsoverthelazydog'; finalarray = regexp(rand.txt,'[a-z]','match') Edit: if every character...

7 years ago | 1

| accepted

Answered
Save figure on a server machine with no display
Not a direct solution, but you could save the data, and reproduce the plots on another machine. You probably have the data saved...

7 years ago | 0

Answered
Copy figure - bad quality
This might just be copy/paste but, try print -s -dmeta

7 years ago | 0

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