Oleg Komarov

2009 年からアクティブ

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PhD in Financial Economics at Imperial College London.
Professional Interests: asset management, big data, systematic trading strategies, financial modelling

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質問

Does appdesigner support retina displays?
As you can see from the image below, the axis created in the app designer is not crisp. Normal plots created with e.g. |plot(1:1...

6年以上前 | 0 件の回答 | 0

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Batman equation in MATLAB
The "correct" version with explanations: http://math.stackexchange.com/questions/54506/is-this-batman-equation-for-real % G...

7年以上前 | 3

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Performance of table data type
As already replicated in <uk.mathworks.com/matlabcentral/answers/256482-table-performance-very-slow table performance very slow>...

7年以上前 | 1

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Table performance very slow
I have been _using_ |table()| way before they were introduced into the core package, since _de facto_ they are the ported versio...

7年以上前 | 3

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TUTORIAL: how to format your question with markup
*CODE* <<http://img5.uploadhouse.com/fileuploads/13715/13715165c3b7057dff601f51d51cd859096f4313.gif>>

約8年前 | 3

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Overriding table() methods and adding new
I adopted a solution that I fully describe on <http://stackoverflow.com/a/34999598/2180721 StackOverflow>. Development for a ...

約8年前 | 0

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[Win] R2015b crashes often, is more unstable
Support suggested to try the pre-release R2016a and I did not manage to crash Matlab on that. You can infer the rest.

約8年前 | 0

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質問

[Win] R2015b crashes often, is more unstable
Has anyone noticed that Matlab has become more unstable under R2015b? In my use case I run some intensive data crunching and es...

約8年前 | 1 件の回答 | 1

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質問

Overriding table() methods and adding new
SETUP Win7 64b R2015b The |table()| is a <http://uk.mathworks.com/help/matlab/matlab_oop/subclassing-matlab-built-in-classes....

約8年前 | 1 件の回答 | 0

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problem with xlswrite while obeying excel limits
I had the following error: message: '' identifier: 'MATLAB:COM:E2148140012' and it boiled down to having a col...

8年以上前 | 1

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How to apply "smart indent" to a file programmatically
*EDIT Dec 2015*: use http://www.mathworks.com/matlabcentral/fileexchange/50554-okomarov-tidycode Suppose you have this fcn s...

8年以上前 | 8

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質問

Screen (2D) projection of 3D plot
How can I get the *screen projection* (2D) of the following 3D plot: h = ezplot3('t', 'sin(t)', '20*cos(t)', [0 10*pi]); ...

8年以上前 | 1 件の回答 | 1

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Is it possible to rename columns in a table?
My <http://uk.mathworks.com/matlabcentral/fileexchange/50006-okomarov-tableutils |tableutils()|> has |renameVarNames()| that doe...

約9年前 | 1

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Hi, I want 2 timer objects to execute sequentially, one after the other. Please help
You can use one timer and a function that alternate the state(s): tic t = timer; t.ExecutionMode = 'fixedDelay'; t...

約9年前 | 2

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How do I convert strings stored in a cell array to numbers?
Hi Alex, you cannot mix double values with char values, but you still have to use a cell array (or drop the header 'Names'). ...

約9年前 | 6

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HOW TO CONVERT PASSWORD TO ******** FORMAT USING MATLAB
An addition to the list <http://uk.mathworks.com/matlabcentral/fileexchange/47210-passfield FEX: passfield>. <<http://uk....

9年以上前 | 0

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asking for a password or code.
An addition to the list by Jan <http://uk.mathworks.com/matlabcentral/fileexchange/47210-passfield FEX: passfield>. <<htt...

9年以上前 | 0

質問

Clear text typed with input() from the command history
The case scenario is very simple, I am asking for a password to be typed in the command window. I am using s = input(...

9年以上前 | 2 件の回答 | 0

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質問

why regexprep much slower than strrep
Consider the following simplified example: str = cellstr(repmat('987_890',1e5,1)); timeit(@()strrep(str,'_','')) time...

9年以上前 | 0 件の回答 | 1

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[Bug?] Print to eps on Win produces Unix line endings
Since R2014b, on Win: it is not a bug but a change in behavior of the |print()| function. A workaround is to read in the .ep...

9年以上前 | 0

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質問

[Bug?] Print to eps on Win produces Unix line endings
On Win7 64b with R2014b, printing a figure to .eps produces Unix line endings (LF or \n). Is this expected or a *bug*? Als...

9年以上前 | 1 件の回答 | 0

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Faster way to create Rectangles
To use patches you need first to organize the |Xdata| and |Ydata| in matrices of 4 rows, one per vertex, and as many columns as ...

9年以上前 | 3

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How to stop parfor from launching a parallel pool automatically?
In the preferences: <</matlabcentral/answers/uploaded_files/19338/Capture.PNG>> . To edit parallel preferences programm...

9年以上前 | 7

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fprintf \n not working properly
You are printing a 5 column row: '%12.8f %12.8f %12.8f %12.8f %12.8f \n' but supplying 6 datatpoints: Data(row_...

9年以上前 | 2

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Save vector to m-file
Since R2014a you can use <http://www.mathworks.co.uk/help/matlab/ref/matlab.io.savevariablestoscript.html |matlab.io.saveVariabl...

9年以上前 | 1

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Text out goes weird on Figure with underscores
By default the interpreter of text objects is set to |'tex'|. Set it to 'none', i.e. set(obj,'Interpreter','none') For...

9年以上前 | 0

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Matlab creating help but ignoring the header
The help should be a continuous block of comments. This means that the |classdef| or |function| declarations constitute a termin...

9年以上前 | 0

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Unexpected numerical errors in matrix/vector multiplication
The dot product implementation might differ according to the input, i.e. dot product between two vectors as opposed between two ...

9年以上前 | 2

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Rapid Vector Matching/Search Problem
You can try to use <http://www.mathworks.co.uk/help/matlab/ref/bsxfun.html |bsxfun()|>: find(all(bsxfun(@eq, A,B),2)) Wh...

9年以上前 | 2

9年以上前 | 2

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