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Mark Brandon


Last seen: 1 day ago |  Active since 2012

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Question


Handling errors in parfeval processes
I am running a conventional parallel computing arrangement with a client and a number of workers. The client distributes jobs to...

1 year ago | 1 answer | 2

1

answer

Answered
Is there a way to flush the output buffer in MATLAB when writing to a file?
A simple way to flush output to the diary file is to simply turn it off and on: diary off; diary on By default, tthe diary fun...

1 year ago | 0

Question


Title is missing when saving a figure using print, saveas, exportgraphics, and printpreview
Context: When plotting images, I have often set the tick marks to face outward, where they are not obscured by the image. This c...

1 year ago | 1 answer | 0

1

answer

Answered
Why are there missing pixels in my "heat map" plot using pcolorm?
Suvansh, I regret to say that our discussion is not getting anywhere. You have the idea that the problem I described could be f...

2 years ago | 0

Question


Why are there missing pixels in my "heat map" plot using pcolorm?
I am using pcolorm to produce a map showing annual mean precipitation in part of South America. I have found that pcolorm comm...

2 years ago | 2 answers | 0

2

answers

Question


How do I turn off arrowhead using quiverm (Mapping Toolbox)
I am trying to get quiverm (part of the Mapping Toolbox) to plot lines, without arrowheads. This option is available for quiver,...

2 years ago | 2 answers | 0

2

answers

Question


What does cyan marker indicate in the editor
I noticed that the editor in the 2020b version of Matlab will occasional show a cyan marker at the left side of a line. I have ...

3 years ago | 1 answer | 0

1

answer

Question


GriddedInterpolant performance, meshgrid vs ndgrid formats
I have been using griddedInterpolant for a long time now. But, starting today, I got the following warning: Warning: Query data...

3 years ago | 1 answer | 0

1

answer

Question


Problem with text output during parallel computation
I have been working for a year now to solve a puzzling problem with text output produced during parallel computation with Matlab...

3 years ago | 1 answer | 0

1

answer

Question


Using data cursor with pcolor
If one uses the data cursor on a pcolor plot, you will see three coordinates, X, Y, and Z, but the Z coordinate is always zero. ...

5 years ago | 2 answers | 3

2

answers

Question


Lambert vs. Lambert Standard
The Mapping Toolbox has two definitions for the Lambert Conformal Conic Projection: lambert and lambertstd. What is the differen...

5 years ago | 1 answer | 0

1

answer

Answered
Double vs Single Precision, Matlab in 2019
SINGLE PRECISON REVISITED I am writing with a follow up to my original question. I have now finished a bunch of testing with t...

5 years ago | 0

Answered
Using parfeval for sequential calculations
I have found what I think is the best way to use parfeval for sequential parallel calculations. Let me illustrate with a simple ...

5 years ago | 0

Question


How are labs distributed across cores?
I have been running a large parallel job on a cluster at my university. Occassionally the file output will be missing a line of ...

5 years ago | 1 answer | 0

1

answer

Answered
Double vs Single Precision, Matlab in 2019
Walter, Yes, you are right... interp1 is supported for a range of types. I should have been more precise, stating only that so...

6 years ago | 0

Question


Double vs Single Precision, Matlab in 2019
Matlab defaults to double precision, but single precision is sufficient for many computational problems. In addition, single pre...

6 years ago | 5 answers | 2

5

answers

Question


Why no pasting allowed in "Matlab Answers"?
The editor for Matlab Answers apparently no longer allows pasting text from another source. I commonly will write notes to mysel...

6 years ago | 1 answer | 0

1

answer

Answered
Initial Guess for Bvp4c
This is an old question (2014), but it represents an issue that probably continues to puzzle others (including me today). The ...

6 years ago | 0

Answered
Switch -- How to specify interval of cases?
Much cleaner solution is to set switch to true. I use this approach all the time given that the "switch" construction is easier ...

6 years ago | 2

Answered
How to convert a structure into a individual double elements
Consider a struct A, with fields a and b, each with a column of elements. You can convert the fields into column vectors using t...

7 years ago | 0

Question


Using parfeval for sequential calculations
In the Matlab documentation, all of the examples for parfeval function use a similar implementation, where the full set of jobs ...

8 years ago | 2 answers | 0

2

answers

Question


Treatment of special characters and ascii codes
Matlab has nice support for special characters but the usage is complicated and incomplete. I have been using matlab extensively...

12 years ago | 1 answer | 0

1

answer