No BSD License  

5.0

5.0 | 1 rating Rate this file 17 Downloads (last 30 days) File Size: 1.22 KB File ID: #6255

BIPVAL

by

 

12 Nov 2004 (Updated )

Produces a matrix of user-defined size, as bipolynomial values.

| Watch this File

File Information
Description

POLYFIT can fit a polynomial of given ORDer to vectorial data, using as independent variable data index, rescaled between -1 and 1. Similarly, BIPFIT fits a bipolynomial of given orders (a matrix) to matrix data.

POLYVAL can calculate the VALues of a POLYnomial on an equidistant abscissa x, scaled between -1 and 1. Then only length(x) counts.

Similarly, BIPVAL calculates the VALues of BIPolynomial as a matrix of user defined size. For smoothing perpouses, same size can be used as original data matrix, parent to the BIPolynomial:

BIP=randn(3,4);
BIP = 3*4 matrix (bipolynomial up to Y^2, X^3)
DAT=bipval(BIP,[100,150]);

Check:
bip=bipfit(DAT,2:3);

BIP-bip

Based on: POLYVAC

See also:
BIPFIT, SURFIT

MATLAB release MATLAB 6.5 (R13)
Other requirements POLYVAC
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (1)
12 Mar 2012 AMITAVA BISWAS  

Contact us