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Rob Purser

MathWorks

Last seen: 2 months ago Active since 2011

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Answered
Building a Word Cloud app
There is now a wordcloud function in MATLAB starting in R2017b: sonnets = fileread("sonnets.txt"); wordcloud(sonnets)

1 year ago | 0

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Answered
I have to create a matrix using only zeros, ones and eye
A = eye(5); A(1,:) = ones(1,5);

3 years ago | 0

Answered
Average minutes dataset to 10 minutes dataset.
Check out the <https://www.mathworks.com/help/matlab/ref/retime.html retime> function in MATLAB that was introduced in R2016b.

4 years ago | 0

Answered
DC Motor Arduino Matlab
MATLAB Arduino supports the PWM (Pulse Width Modulation) mode on various digital pins. Check out this video: <http://www.mat...

6 years ago | 0

Answered
Element-wise multiplication of duration and double array
The result of the |<http://www.mathworks.com/help/matlab/matlab_prog/compute-elapsed-time.html diff>| on |dispt| (which I assume...

6 years ago | 0

Answered
convert char to double
Assuming you're in R2014b or later: Recreate your data data = ['19-Jan-2015 11:30:00.000 11.8950011 1.7625011 ...

6 years ago | 0

Answered
Simulink Hardware Support Package for Arduino [Thingspeak Write and r2014a version]
Support was added in R2014b. -Rob Purser

6 years ago | 0

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Answered
32 bit MATLAB on 64 bit Windows is not picking up my MCC device
Running 32-bit MATLAB on 64-bit Windows is a supported configuration as-of R2010b. In R2010a and earlier, this configuration is ...

7 years ago | 2

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Answered
Matlab Support package for SensorDAQ and Thermocouple.
Hi, Are you using the <http://www.mathworks.com/matlabcentral/fileexchange/32636-matlab-support-package-for-vernier-sensordaq...

8 years ago | 1

Answered
Data acquisition with pre-trigger using low-level DAQmx functions (daq.ni.NIDAQmx library)
Hi Ray, This is a really nice piece of code, and our exact intent when we provided undocumented access to the interface. How...

10 years ago | 0

Answered
How to use MATLab and NI-DAQmx Tools to produce live plots
Visit the <http://www.mathworks.com/products/daq/demos.html demos and examples page> for the Data Acquisition Toolbox. See the ...

10 years ago | 0

Answered
PCI-6229 not recognised by Matlab R2011b
Can you see your device in NI Measurement and Automation Explorer? Until you see it there, it can't show up in MATLAB. To u...

10 years ago | 0

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Answered
How to import a continuous signal from USB-6009 to an Oscilloscope (DAQ toolbox)
The USB-6009 doesn't support hardware clocked outputs. There's no way to have it generate a smooth curve. You're on the right ...

10 years ago | 0

Answered
Trouble reading Tektronix DPO 3012 Oscilloscope
If you get an object back at the command line, you're good to go! You can call fopen on it. If you want to work in TMTOOL, ri...

10 years ago | 0

Answered
Agilent visa adaptor
You need R2009b or later -- <http://www.mathworks.com/products/instrument/whatsnew.html support for 64-bit Agilent VISA was adde...

10 years ago | 0

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Answered
Problem with CDAQ 9172 communication
R2011a of the Data Acquisition Toolbox requires NI-DAQmx version 9.1 -- you're running 8.9. See the <http://www.mathworks.com/h...

10 years ago | 0

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Answered
Problem with NI DAQ 6212 USB BNC
Support for this device was added in R2010a. However, a search for "6212 USB BNC" on the MathWorks website leads to: <http:/...

10 years ago | 1

Answered
Error with LPT port: Failure to open requested data acquisition devide
Hi Sirius, Alas, your issues are classic problems with the parallel interface. We used a number of backdoors in the operatin...

10 years ago | 1

Answered
DAQ Toolbox use with two NI-USB-6009 devices
What version of MATLAB are you using? I'm guessing you've restarted MATLAB. It should work...We'll figure it out. -Rob

10 years ago | 0

Answered
use PCI-6259 card digital output to send asci-codes to device
Hi Hansjörg, Unfortunately, the Data Acquisition Toolbox does not support clocked digital I/O. It is functionality that we w...

11 years ago | 0

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Answered
How to execute two MATLAB scripts simultaneously
Hi, The Data Acquisition Toolbox has the exact capability you want built in. There's a demo called "Using Callback Functions t...

11 years ago | 0

Answered
Signal Acquisition
See the list of hardware supported by the Data Acquisition Toolbox: <http://www.mathworks.com/products/daq/supportedio.html> ...

11 years ago | 0

Answered
Finding the frequency response of data collected from a DAQ
Check out <http://www.mathworks.com/matlabcentral/fileexchange/28375-vibration-of-rectangular-clamped-thin-plate this> in the ...

11 years ago | 0

Answered
Why do I get a timeout error from a call to GetData using an MCC DAQ device?
On the timeout, I'd follow Shankar's advice. The MCC drivers have become careful about validating setup, which may result in lo...

11 years ago | 2