BOX_PLOT
Integer Data Box Plots

BOX_PLOT is a MATLAB program, which reads a a file of integer coordinates and associated colors, and makes a plot, placing a unit box of the given color at each coordinate.

The input file containing the point coordinates and colors is in the TABLE format.

Related Data and Programs:

BAR_PLOT is a FORTRAN90 program which reads a set of data from a file and creates a bar plot.

CC_DISPLAY is a MATLAB program which displays the abscissas used in various kinds of Clenshaw Curtis quadrature rules.

GL_DISPLAY is a MATLAB program which displays the abscissas used in various kinds of Gauss Legendre quadrature rules.

PLOT_POINTS is a FORTRAN90 program which reads a set of points from a file and plots them into an Encapsulated PostScript file.

POINTS_DISPLAY is a MATLAB program which displays a set of scattered points.

POINTS_DISPLAY_OPEN_GL is a C++ program which reads a set of points from a file and plots them in an OpenGL graphics window.

TABLE is a format used for the input file containing the point coordinates.

Usage:

box_plot ( 'input_file_name' )

reads the point coordinates and colors from input_file_name and displays the box plot in the MATLAB graphics window.

Tar File:

A GZIP'ed TAR file of the contents of this directory is available. This is only done as a convenience for users who want ALL the files, and don't want to download them individually. This is not a convenience for me, so don't be surprised if the tar file is somewhat out of date.

• box_plot_m_src.tar.csh the commands used to create the GZIP'ed TAR file.
• box_plot_m_src.tar.gz the GZIP'ed TAR file.

Source Code:

• box_plot.m the main routine, which accepts a file name, reads the coordinates of points from the file, and plots the points in a MATLAB graphics window.
• dtable_data_read.m reads data from a double precision table file.
• dtable_header_read.m reads the header from a double precision table file.
• file_column_count.m counts the number of columns in the first line of a file.
• file_row_count.m counts the number of row records in a file.
• i4mat_transpose_print_some.m prints some of the transpose of an I4MAT.
• r8mat_transpose_print_some.m prints some of the transpose of an R8MAT.
• s_escape_tex.m de-escapes Tex escape sequences.
• s_len_trim.m returns the length of a string to the last nonblank.
• s_word_count.m counts the number of "words" in a string.
• timestamp.m prints the current YMDHMS date as a time stamp.

Examples and Tests:

ALPHA_1.0_1.0 prints some of the 64 pairs of values on an 8 by 8 grid. Blue indicates "old" data, and red "new".

• alpha_1.0_1.0.txt, the coordinates and colors.
• alpha_1.0_1.0.png, a PNG image of a plot of the points.

ALPHA_1.0_1.5 prints some of the 64 pairs of values on an 8 by 8 grid. Blue indicates "old" data, and red "new".

• alpha_1.0_1.5.txt, the coordinates and colors.
• alpha_1.0_1.5.png, a PNG image of a plot of the points.

ALPHA_1.0_2.0 prints some of the 64 pairs of values on an 8 by 8 grid. Blue indicates "old" data, and red "new".

• alpha_1.0_2.0.txt, the coordinates and colors.
• alpha_1.0_2.0.png, a PNG image of a plot of the points.

CHECKERBOARD is a set of 64 pairs of integers and colors that correspond to a checkerboard.

• checkerboard.txt, the coordinates and colors.
• checkerboard.png, a PNG image of a plot of the points.

CLAY is a set of pairs of integers that record the basic method (1,1) in blue, some low order methods in green, and secondary refinements in red.

• clay.txt, the coordinates and colors.
• clay.png, a PNG image of a plot of the points.

F is a set of points that can make the letter F:

• f.txt, the coordinates and colors.
• f.png, a PNG image of a plot of the points.

You can go up one level to the MATLAB source codes.