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# Artyom

### BSEU

Actif depuis 2012

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Question

Face recognition and image normalization
How can I normalize image to align the eyes with a horizontal line. EyeDetect = vision.CascadeObjectDetector('EyePairBig');...

presque 9 ans il y a | 2 réponses | 0

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Question

Convert string to cell array
How to convert string a b 3 into cell array {'a' 'b' 3}

environ 9 ans il y a | 4 réponses | 2

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Question

Concatenate cell array into one string
Hi. I want to concatenate a cell array {'a', 'b', 5, []} in a string 'a b 5'. How can I do this?

environ 9 ans il y a | 1 réponse | 0

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Question

Find row with NaN in it.
I have variable X. X=[2 4 6; 4 5 NaN 3 NaN NaN 5 8 12 3 8 NaN]; How to find any r...

environ 9 ans il y a | 4 réponses | 1

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Question

How to stop ode integration?
I'm trying to solve a differential equations system with ode45 solver. But sometimes integration takes too much time because one...

plus de 9 ans il y a | 1 réponse | 0

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A répondu
Stock market price forecasting
Here you are: if C(t+1)-C(t)>0 buy else sell end

plus de 9 ans il y a | 2

Question

Hi. I have a lot of data in .txt files. Now I'm using this code to read and import data to matlab: fid=fopen(Data); Res...

plus de 9 ans il y a | 1 réponse | 0

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Question

Combine two cell arrays
I have two cell arrays: X{1,1}=[18;21;17;20;19]; X{1,2}=cellstr(['m';'f';'m';'m';'f']); How to create new cell array li...

environ 10 ans il y a | 2 réponses | 0

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Question

I have string line: x='abc123(xyz456)' How to read information only in brackets, to have result: y='xyz456'.

environ 10 ans il y a | 3 réponses | 0

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Question

How to find unique lines in cell arrays
How to find unique lines in the next cell array: 15 'm' 18 'm' 15 'm' So the result will be: 15 'm' 18 'm'

environ 10 ans il y a | 1 réponse | 0

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Question

C++ std::vector transferring
How can I send vector<vector<double>> result; matrix to matlab? Should I use memcpy: memcpy((void *)mxGetPr(A), ??? , sizeof...

environ 10 ans il y a | 1 réponse | 0

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Question

Calling Matlab from C++
I have some data in 2d std::vector for (int j=0; j<2; j++){ result.push_back(vector<double>()); for (int i=0; i<10; i++)...

environ 10 ans il y a | 1 réponse | 1

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A répondu
Draw a line between two points
Thank you guys.

environ 10 ans il y a | 0

Question

Draw a line between two points
Hi. I have three points [5.2 0 0 0 9.9 0 0 12.1]. How to draw a line through the first two points and find is the third point (1...

environ 10 ans il y a | 4 réponses | 0

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Question

Conditional Formatting in Excel 2010
Hi. How to apply conditional formatting in Excel 2010? xlCellValue = 1; Excel.Selection.FormatConditions.Delete; Excel....

plus de 10 ans il y a | 2 réponses | 0

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Question

Conditional Formatting in Excel
How to apply conditional formatting in Excel. Here is my code: file='Result.xlsx'; data=rand(5,5); range='B2:E5'; file...

plus de 10 ans il y a | 1 réponse | 0

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Question

Colormap for area graphic
Hi everyone. I have area and line graphics in one window [ax,h1,h2] = plotyy(x, y1, x, y2, @area, @line); How to set colo...

presque 11 ans il y a | 1 réponse | 0

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Question

All possible combinations of 2 vectors.
Hi everyone. I have one vector and one number. For example [1 3 5] and 0. How do I generate all possible combinations? Lik...

presque 11 ans il y a | 4 réponses | 1

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Question

Walsh piecewise approximation function
Hi everyone. Is there any function or .m file to compute Walsh piecewise continuous approximation function?

environ 11 ans il y a | 1 réponse | 0

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Question

How to remove text strings from .dat file
Hi everyone. There is a .dat file, where the first raw of it: #component = 1 embedding = 1 Then 20x3 matrix of numbe...

environ 11 ans il y a | 1 réponse | 0

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Question

Autoregressive model using Yule-Walker method
Hi everyone. I'm trying to find autoregressive coefficients for the signal using Yule-Walker method and Levinson-Durbin recur...

environ 11 ans il y a | 1 réponse | 0

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Question

Pointer on the graph.
Hi everyone. There is 1x100 array. Is there any function that can show me (for example with pointer or another color) on the gr...

environ 11 ans il y a | 1 réponse | 0

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Question

One formula in Matlab.
Hi everyone. Is there any function in Matlab that can easily calculate such kind of formula (Y[i]-Y[i-1])/Y[i-1] ?

environ 11 ans il y a | 1 réponse | 0

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A répondu
Find row in matrix.
Ok, and if we have: A=[3 3 2011 3 6; 22 3 2011 7 3; 23 3 2011 6 4; 24 3 2011 1 3; 25 3 2011 5 4; 26 3 20...

environ 11 ans il y a | 0

Question

Find row in matrix.
Hi, everyone. There are some data in array: A=[3 3 2011;22 3 2011;23 3 2011;24 3 2011;25 3 2011;26 3 2011;27 3 2011]; ...

environ 11 ans il y a | 3 réponses | 2

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A répondu
Thanks. Maybe you know how to do the reverse process - from [5] [5] to [55]?

environ 11 ans il y a | 0

Question

Hi everyone. Is there any function that converts "complex" number for example [123] to constituent elements [1 2 3] ?

environ 11 ans il y a | 2 réponses | 0

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Question

Hi everyone. I have some vector for example x=[0;0;2;2;1;0;0;2;0]. How can I add a new vector (for example y=[43;43;34;34;34]) ...

environ 11 ans il y a | 3 réponses | 0

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Question

Hi, everyone. I have .txt data file. Each new line begins with date in format mm/dd/yyyy, for example 06/25/2012. Part of the c...

environ 11 ans il y a | 1 réponse | 0

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Question

Genetic algorithm and system of nonlinear ODE
Hi everyone. Here is the question. Can I using genetic algorithm from Global Optimization Toolbox optimize next problem: There...

environ 11 ans il y a | 1 réponse | 0

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