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John


Teledyne LeCroy Inc

44 total contributions since 2011

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Question


How do I plot lines with different line widths?
Hi, I want to do: plot(x1,y1,x2,y2,'LineWidth',8) but the linewidth propery ends up applying to both lines. Do I have...

5 months ago | 4 answers | 3

4

answers

Question


How to handle error in callback function triggered by an event?
Hi All, I have an instance of a class I created that can trigger events. I have other classes that set listeners on this obje...

5 years ago | 1 answer | 0

1

answer

Question


OOP: Properties Containing Objects
Hi All, I defined a class called instr (which is short for instrument) that is derived from a handle class. The instr class s...

5 years ago | 0 answers | 0

0

answers

Question


Visa and Timeout error handling?
Hi. I am using the instrument control toolbox to create a VISA connection to my instrument using visa('ni','TCPIP0::<i...

6 years ago | 0 answers | 0

0

answers

Question


Compiling a matlab function into a C shared .dll library
I have 5 matlab functions that I have compiled into 5 separate shared C .dll to use with an existing software written in C. Each...

6 years ago | 0 answers | 0

0

answers

Question


Compiler / MEX using C help
Hi all, I compiled a matlab function using the compiler toolbox into a dll, and I am trying to call it from my C program. For...

6 years ago | 0 answers | 0

0

answers

Question


Compiler and shared C library
Hi all, I am trying to understand how to use the Compiler toolbox to distribute a shared C library. What I currently have in ...

6 years ago | 0 answers | 0

0

answers

Question


How to write asynchronously to instrument?
Hi all, I am trying to control an oscilloscope, and I have the following code for setting it up. for Chan = 1:4 f...

6 years ago | 0 answers | 0

0

answers

Question


cell array concatenation problem
Hi I am not sure what I am doing wrong. I have the following code. BWL = [200 350 500 1000]*1E6; filename = cell(4,...

6 years ago | 1 answer | 0

1

answer

Question


Assigning a single value to cell array with logical indexing.
Hi All, I am wondering if the code I have below is optimal for what it does, or if there are better ways to do this. VDI...

6 years ago | 1 answer | 0

1

answer

Question


concatenating array using cellstr and repmat
Hi All, I have the following code str = cellstr(char('This','Orthis')); x = round(rand(10,1))+1; output = [repmat(...

6 years ago | 1 answer | 0

1

answer

Question


Help with FFT and wvtool
Hi All, I am stumped on this one. I created a filter and used wvtool on it. w_k = kaiser(K,9.5*pi); wvtool(w_k) I th...

6 years ago | 0 answers | 0

0

answers

Question


Parallel toolbox computing question
Hi. I have the parallel computing toolbox and I was curious if the following can be done. I have a for loop that calls 3 fun...

6 years ago | 1 answer | 0

1

answer

Question


append string to each element in string cell array
x_label = '8' '16' '24' '32' '40' How can I append ' GHz' to each element in the cell array? Thanks! Ca...

7 years ago | 2 answers | 4

2

answers

Question


array of ints to cell array of strings?
I was wondering what is the best way to convert an array of integers to a cell array of strings? Thanks.

7 years ago | 1 answer | 0

1

answer

Question


commsrc.pattern help
I am having trouble using commsrc.pattern to generate the following psuedo-random binary signal: Pattern: PRBS7 Bitrate: 28...

7 years ago | 0 answers | 0

0

answers

Question


Array of string cells and guide 'string'
I have in a GUIDE generated GUI several places where the user can enter data. This data is validated when the person clicks on a...

7 years ago | 1 answer | 0

1

answer

Question


Browse Button in GUIDE issue
Hi, I have a callback function for a Browse button (to select a file) in a GUIDE generated fig: % --- Executes on button pres...

7 years ago | 1 answer | 0

1

answer

Question


guide and waitfor selectionchangefcn
Hi. In my GUIDE gui, I have a "RUN" push button, whose callback function runs through a block of conditional statements to check...

7 years ago | 1 answer | 0

1

answer

Answered
try and catch help
OOPS! should be two s's in isstruct. getReport(err) in the catch block allowed me to solve it.

7 years ago | 0

| accepted

Question


try and catch help
In a callback function of a GUIDE gui, I have: path = get(handles.path_text,'String') try data = importdata(pat...

7 years ago | 3 answers | 0

3

answers

Question


GUIDE and buttongroup
I have a button group with 2 radio buttons: MHz and GHz. I don't need to run a callback function on selection changes. My GUI a...

7 years ago | 1 answer | 0

1

answer

Question


str2num and commas
Hi. str2num doesn't seem to convert '20,000' to 20E3. Instead, it becomes a vector of 2 elements: 20 and 0. Is there a way aroun...

7 years ago | 2 answers | 0

2

answers

Question


string and isinteger
Hi. I created a GUIDE UI and I am trying to determine whether an input into an editable textbox is an integer. If I do: [I,O...

7 years ago | 3 answers | 0

3

answers

Question


conditional statement with ||
Say I have If A && B && C ...do something if A = B = C = true end Is it faster, however to do: If ~(A ||...

7 years ago | 2 answers | 0

2

answers

Question


GUIDE callback question
I have a button group (tag: DBI_ButtonGroup) with two radio buttons (tag1: radio_DBI tag2: radio_non_DBI) My selctionchangefc...

7 years ago | 2 answers | 0

2

answers

Question


GUIDE edit text
I am using an edit text control in guide with a preset string defined. When I run the figure, clicking inside the edit box does...

7 years ago | 1 answer | 0

1

answer

Question


get handle of subplot?
After I subplot, how can I get the Position property of the current axis so I can adjust it?

7 years ago | 2 answers | 0

2

answers

Answered
count number of occurences of character in string?
I suppose this will actually work. v = '30.44.532.56'; length(strfind(v,'.'))

7 years ago | 1

Question


count number of occurences of character in string?
Is there a function/method for counting the number of times a specific character occurs in a string? Say v = '30.44.532.56'; ...

7 years ago | 2 answers | 0

2

answers

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