TEST_APPROX
Tests For Data Approximation

TEST_APPROX is a dataset directory which is associated with the sample approximation problems in the TEST_APPROX software library.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Related Data and Programs:

TEST_APPROX, a C++ library which defines test problems for approximation, provided as a set of (x,y) data.

Data File Directories:

P01 supplies DeBoor example, Mars position data;

• p01_x.txt the X values.
• p01_y.txt, the Y values.
• p01_data.png, a plot of the data.

P02 supplies DeBoor example, roughly linear data;

• p02_x.txt the X values.
• p02_y.txt, the Y values.
• p02_data.png, a plot of the data.

P03 supplies the pulse data, 0 0 0 0 0 1 0 0 0 0 0;

• p03_x.txt the X values.
• p03_y.txt, the Y values.
• p03_data.png, a plot of the data.

P04 supplies the jump data, 0 0 0 0 0 1/2 1 1 1 1 1;

• p04_x.txt the X values.
• p04_y.txt, the Y values.
• p04_data.png, a plot of the data.

P01 supplies DeBoor's Titanium Property data;

• p05_x.txt the X values.
• p05_y.txt, the Y values.
• p05_data.png, a plot of the data.

P06 supplies the Sawtooth data;

• p06_x.txt the X values.
• p06_y.txt, the Y values.
• p06_data.png, a plot of the data.

P07 supplies the Concavity test data;

• p07_x.txt the X values.
• p07_y.txt, the Y values.
• p07_data.png, a plot of the data.

P08 supplies the Extrapolation test data;

• p08_x.txt the X values.
• p08_y.txt, the Y values.
• p08_data.png, a plot of the data.

P09 supplies the Sunspot data, 1700-1960;

• p09_x.txt the X values.
• p09_y.txt, the Y values.
• p09_data.png, a plot of the data.

P10 supplies 100 values of X and Y related by the formula Y = 2 + 5 * X + 10 * N(0,1), where "N(0,1)" represents a normal random number with mean 0 and variance 1.

• p10_x.txt the X values.
• p10_y.txt, the Y values.
• p10_data.png, a plot of the data, and the line y=2+5*x.

You can go up one level to the DATASETS page.