pwl_approx_1d_test

pwl_approx_1d_test, a MATLAB code which calls pwl_approx_1d(), which defines and evaluates a piecewise linear function, using NC "control points", which approximates a set of ND data points (x(i),y(i)).

Licensing:

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

Related Data and Programs:

pwl_approx_1d, a MATLAB code which approximates a set of data using a piecewise linear function.

Source Code:

• pwl_approx_1d_test.m, calls all the tests;
• pwl_approx_1d_test.sh, runs all the tests;
• pwl_approx_1d_test.txt, the output file.

• pwl_approx_1d_test01.m, plots a piecewise linear interpolant to the original data, and the piecewise linear approximant.

pwl_approx_1d_test01() uses nc evenly spaced control points to approximate a set of nd data values.

• p01_pwl_02_16.png, a plot of the piecewise linear approximant with 2 control points approximating 16 data values for problem p01;
• p01_pwl_04_16.png, a plot of the piecewise linear approximant with 4 control points approximating 16 data values for problem p01;
• p01_pwl_08_16.png, a plot of the piecewise linear approximant with 8 control points approximating 16 data values for problem p01;
• p01_pwl_16_16.png, a plot of the piecewise linear approximant with 16 control points approximating 16 data values for problem p01;
• p01_pwl_02_64.png, a plot of the piecewise linear approximant with 2 control points approximating 64 data values for problem p01;
• p01_pwl_04_64.png, a plot of the piecewise linear approximant with 4 control points approximating 64 data values for problem p01;
• p01_pwl_08_64.png, a plot of the piecewise linear approximant with 8 control points approximating 64 data values for problem p01;
• p01_pwl_16_64.png, a plot of the piecewise linear approximant with 16 control points approximating 64 data values for problem p01;

• p02_pwl_02_16.png, a plot of the piecewise linear approximant with 2 control points approximating 16 data values for problem p02;
• p02_pwl_04_16.png, a plot of the piecewise linear approximant with 4 control points approximating 16 data values for problem p02;
• p02_pwl_08_16.png, a plot of the piecewise linear approximant with 8 control points approximating 16 data values for problem p02;
• p02_pwl_16_16.png, a plot of the piecewise linear approximant with 16 control points approximating 16 data values for problem p02;
• p02_pwl_02_64.png, a plot of the piecewise linear approximant with 2 control points approximating 64 data values for problem p02;
• p02_pwl_04_64.png, a plot of the piecewise linear approximant with 4 control points approximating 64 data values for problem p02;
• p02_pwl_08_64.png, a plot of the piecewise linear approximant with 8 control points approximating 64 data values for problem p02;
• p02_pwl_16_64.png, a plot of the piecewise linear approximant with 16 control points approximating 64 data values for problem p02;

• p03_pwl_02_16.png, a plot of the piecewise linear approximant with 2 control points approximating 16 data values for problem p03;
• p03_pwl_04_16.png, a plot of the piecewise linear approximant with 4 control points approximating 16 data values for problem p03;
• p03_pwl_08_16.png, a plot of the piecewise linear approximant with 8 control points approximating 16 data values for problem p03;
• p03_pwl_16_16.png, a plot of the piecewise linear approximant with 16 control points approximating 16 data values for problem p03;
• p03_pwl_02_64.png, a plot of the piecewise linear approximant with 2 control points approximating 64 data values for problem p03;
• p03_pwl_04_64.png, a plot of the piecewise linear approximant with 4 control points approximating 64 data values for problem p03;
• p03_pwl_08_64.png, a plot of the piecewise linear approximant with 8 control points approximating 64 data values for problem p03;
• p03_pwl_16_64.png, a plot of the piecewise linear approximant with 16 control points approximating 64 data values for problem p03;

• p04_pwl_02_16.png, a plot of the piecewise linear approximant with 2 control points approximating 16 data values for problem p04;
• p04_pwl_04_16.png, a plot of the piecewise linear approximant with 4 control points approximating 16 data values for problem p04;
• p04_pwl_08_16.png, a plot of the piecewise linear approximant with 8 control points approximating 16 data values for problem p04;
• p04_pwl_16_16.png, a plot of the piecewise linear approximant with 16 control points approximating 16 data values for problem p04;
• p04_pwl_02_64.png, a plot of the piecewise linear approximant with 2 control points approximating 64 data values for problem p04;
• p04_pwl_04_64.png, a plot of the piecewise linear approximant with 4 control points approximating 64 data values for problem p04;
• p04_pwl_08_64.png, a plot of the piecewise linear approximant with 8 control points approximating 64 data values for problem p04;
• p04_pwl_16_64.png, a plot of the piecewise linear approximant with 16 control points approximating 64 data values for problem p04;

• p05_pwl_02_16.png, a plot of the piecewise linear approximant with 2 control points approximating 16 data values for problem p05;
• p05_pwl_04_16.png, a plot of the piecewise linear approximant with 4 control points approximating 16 data values for problem p05;
• p05_pwl_08_16.png, a plot of the piecewise linear approximant with 8 control points approximating 16 data values for problem p05;
• p05_pwl_16_16.png, a plot of the piecewise linear approximant with 16 control points approximating 16 data values for problem p05;
• p05_pwl_02_64.png, a plot of the piecewise linear approximant with 2 control points approximating 64 data values for problem p05;
• p05_pwl_04_64.png, a plot of the piecewise linear approximant with 4 control points approximating 64 data values for problem p05;
• p05_pwl_08_64.png, a plot of the piecewise linear approximant with 8 control points approximating 64 data values for problem p05;
• p05_pwl_16_64.png, a plot of the piecewise linear approximant with 16 control points approximating 64 data values for problem p05;

• p06_pwl_02_16.png, a plot of the piecewise linear approximant with 2 control points approximating 16 data values for problem p06;
• p06_pwl_04_16.png, a plot of the piecewise linear approximant with 4 control points approximating 16 data values for problem p06;
• p06_pwl_08_16.png, a plot of the piecewise linear approximant with 8 control points approximating 16 data values for problem p06;
• p06_pwl_16_16.png, a plot of the piecewise linear approximant with 16 control points approximating 16 data values for problem p06;
• p06_pwl_02_64.png, a plot of the piecewise linear approximant with 2 control points approximating 64 data values for problem p06;
• p06_pwl_04_64.png, a plot of the piecewise linear approximant with 4 control points approximating 64 data values for problem p06;
• p06_pwl_08_64.png, a plot of the piecewise linear approximant with 8 control points approximating 64 data values for problem p06;
• p06_pwl_16_64.png, a plot of the piecewise linear approximant with 16 control points approximating 64 data values for problem p06;

• p07_pwl_02_16.png, a plot of the piecewise linear approximant with 2 control points approximating 16 data values for problem p07;
• p07_pwl_04_16.png, a plot of the piecewise linear approximant with 4 control points approximating 16 data values for problem p07;
• p07_pwl_08_16.png, a plot of the piecewise linear approximant with 8 control points approximating 16 data values for problem p07;
• p07_pwl_16_16.png, a plot of the piecewise linear approximant with 16 control points approximating 16 data values for problem p07;
• p07_pwl_02_64.png, a plot of the piecewise linear approximant with 2 control points approximating 64 data values for problem p07;
• p07_pwl_04_64.png, a plot of the piecewise linear approximant with 4 control points approximating 64 data values for problem p07;
• p07_pwl_08_64.png, a plot of the piecewise linear approximant with 8 control points approximating 64 data values for problem p07;
• p07_pwl_16_64.png, a plot of the piecewise linear approximant with 16 control points approximating 64 data values for problem p07;

• p08_pwl_02_16.png, a plot of the piecewise linear approximant with 2 control points approximating 16 data values for problem p08;
• p08_pwl_04_16.png, a plot of the piecewise linear approximant with 4 control points approximating 16 data values for problem p08;
• p08_pwl_08_16.png, a plot of the piecewise linear approximant with 8 control points approximating 16 data values for problem p08;
• p08_pwl_16_16.png, a plot of the piecewise linear approximant with 16 control points approximating 16 data values for problem p08;
• p08_pwl_02_64.png, a plot of the piecewise linear approximant with 2 control points approximating 64 data values for problem p08;
• p08_pwl_04_64.png, a plot of the piecewise linear approximant with 4 control points approximating 64 data values for problem p08;
• p08_pwl_08_64.png, a plot of the piecewise linear approximant with 8 control points approximating 64 data values for problem p08;
• p08_pwl_16_64.png, a plot of the piecewise linear approximant with 16 control points approximating 64 data values for problem p08;