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  • License: Freeware
  • Last update: 5 years ago
  • Total downloads: 117
  • Price: Free |
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: Arnout Tilgenkamp (2 other programs)
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scripts default iconLocal Regression 2D (Scripts) Publisher's description

This function will perform a local regression at the given points

This function will perform a local regression at the given points. Using the data at hand. You will need to input a spanwidth which will tell the function how many datapoints he will use in the local regression at each evaluation.

Example Code



Assumption for use local Regression
The underlying function between y and X is continues and has a 1st derivative at any point.

X= 1 column vector with data points
y= 1 column vector with data points
spanwidth= number between 0 and 1
X0= column vector specifying the points that you want to be evaluated
robust= either 0 or 1
( if you choose 1 then robust version is used )

Plot explanation
-The straight blue line is the local regression approximation at a certain point
- The green points are used for local regression
- The Red points are left out
- The blue dot in middle of blue line is the current point .

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System Requirements:

MATLAB 7.7 (R2008b
Program Release Status: New Release
Program Install Support: Install and Uninstall

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