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Yair Altman


Consultant

Last seen: 1일 전 2007 이후 활성

Website: http://UndocumentedMatlab.com
LinkedIn: http://www.linkedin.com/in/yairaltman

Author of "Accelerating MATLAB Performance" book:
http://UndocumentedMatlab.com/books/matlab-performance

Author of "Undocumented Secrets of MATLAB-Java Programming" book:
http://UndocumentedMatlab.com/books/matlab-java

MSc Computer Science, BSc Physics (both with top honors)

Professional programmer and manager since 1991

Contact me: altmany at gmail.com

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export_fig
Publication-quality export of Matlab figures and axes to various vector & bitmap formats

약 6시간 전 | 다운로드 수: 1297 |

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Exporting images (png) through export_fig - painfully slow
Try to either reduce the resolution (the -r450 part), or to save as a vector-graphics image (PDF/EPS) rather than a PNG bitmap.

8일 전 | 0

답변 있음
How to save very large image to original resolution
Try to use export_fig's sister image-export utility, ScreenCapture: https://www.mathworks.com/matlabcentral/fileexchange/24323-s...

약 1달 전 | 0

제출됨


findjobj - find java handles of Matlab graphic objects
Find java objects contained within a specified java container or Matlab GUI handle

약 1달 전 | 다운로드 수: 51 |

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제출됨


ScreenCapture - screenshot of component, figure or screen
ScreenCapture gets a screen-capture image of any Matlab GUI handle, or specified screen area rectangle

2달 전 | 다운로드 수: 56 |

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제출됨


IQML - Matlab connector to IQFeed
Matlab connector to IQFeed optimized for reliability, ease-of-use, functionality and performance (including parallelization)

3달 전 | 다운로드 수: 4 |

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제출됨


cprintf - display formatted colored text in Command Window
Displays sprintf-formatted strings in the Command Window using the specified color/underline style

6달 전 | 다운로드 수: 99 |

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제출됨


checkClass - inspect a Java/Matlab/COM class object/name
inspect a Java/MCOS/COM/.NET object or classname and display its methods, properties, events, interfaces, etc.

7달 전 | 다운로드 수: 3 |

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Can I somehow improve performance of str2double?
I use the following function to convert a cell-array of strings to a cell-array of numeric values (where applicable) - it is ~2-...

8달 전 | 2

답변 있음
Speed issues with Matlab code compiled using SDK compiler for Python
Perhaps your deployed environment is different from your Matlab &D one. For example, perhaps you can access a GPU on the R&D env...

8달 전 | 0

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How To Clear Java Heap Space Memory????
Clearing Matlab's Java heap space has been long awaited, but I'm afraid that the suggested submission (Davide Tabarelli's JavaHe...

9달 전 | 2

답변 있음
Import data tool speed
The import tool GUI only shows you a preview of the data, based on the top N lines in the file, it does not read and process the...

10달 전 | 0

| 수락됨

제출됨


setFigDockGroup
Sets a figure's docking group container

10달 전 | 다운로드 수: 11 |

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MATLAB Profiler - Granularity of Information
Use the [undocumented] -detail builtin profiler option, as in: profile on -detail builtin This works on old Matlab releases as ...

약 1년 전 | 1

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답변 있음
How can I make the plot transparent in a gscattter?
Nice answer Adam, but not exactly accurate if you are willing to use some undocumented features... The underlying objects in a...

약 1년 전 | 3

답변 있음
MATLAB export_fig crops title
This is fixed in the latest version of export_fig (3.09). In the future, report such issues in export_fig's issues page: https:/...

약 1년 전 | 0

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답변 있음
How to speed up a code from the Code Profiler Results ?
Try to set the "Vectorized" property using the odeset function, before running ode45. Also, specifying the Jacobian in advance (...

약 1년 전 | 0

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답변 있음
[Soft question] Tips and tools to analyze unfamiliar OO code
For inspecting a single object or class, try the GUI-based uiinspect utility (https://www.mathworks.com/matlabcentral/fileexch...

약 1년 전 | 0

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Heatmap Axis Labels Printing Vertically?
The heatmap's X labels orientation is dynamically determined based on the number of labels and the axes width. In other words, i...

약 1년 전 | 1

제출됨


popupPanel Displays a popup panel with specified content
popupPanel Displays a popup panel with specified file contents, help topic, HTML or webpage

1년 이상 전 | 다운로드 수: 1 |

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graphics performance 2019a vs 2016b
R2019a uses the integrated axes toolbar, which constantly monitors mouse movements in order to generate data tips on-the-fly. If...

1년 이상 전 | 0

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답변 있음
Poor performance of mex file
You m-function uses parallelization (parfor), while your mex file does not. This in itself could cause your m-code to run much f...

1년 이상 전 | 0

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Increase CPU Speed - MAC
You can separate the problem into separate tasks and launch separate Matlab processes to process them in parallel. This is essen...

1년 이상 전 | 0

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How can I clear stuck help popups?
Updates June 12, 2020: There is a recognized bug report on a very similar issue: https://www.mathworks.com/support/bugreports/1...

1년 이상 전 | 5

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답변 있음
dynamic java path vs static java path
Some Java functionality, especially those that are concerned with Java events that need to propagate to Matlab callbacks, does n...

1년 이상 전 | 0

답변 있음
Matlab in AVX2 mode (for AMD CPU's)
This is apparently fixed on R2020a as reported by @NedFlanders (original credit is apparently due to @MichelKatz): https://www...

1년 이상 전 | 0

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답변 있음
How to change Heatmap's Grid (Edge) appereance and behavior?
There are several alternatives: Update the grid style to a non-solid line, for example: hHeatmap = struct(h_map).Heatmap; hHe...

1년 이상 전 | 3

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답변 있음
Unable to use Java class in a package - Undefined function or variable 'CartesianCoordinate'.
This problem could be due to numerous possible causes, and unfortunately Matlab is not very helpful in explaining the root cause...

1년 이상 전 | 0

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How to load multiple excel files with multiple excel sheets and store it in matlab faster?
Try to use the 'basic' mode of xlsread, which reads the XLS file directly instead of using the much slower Excel instance: for ...

1년 이상 전 | 0

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Interactive broker timeseries vs history?
Both of these functions in the Trading Toolbox call IB's reqHistoricalDataEx function internally, but for some reason Mathworks ...

1년 이상 전 | 0

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