Accompanying source code for the book"Beginning Python VisualizationCrafting Visual Transformation Scripts"ISBN 978-1-4302-1843-2ApressAuthor: Shai Vaingast, February 2009The following files are source listings of most of the code in the book.Some code listings require additional data files which should be downloaded separately; consult with the text in the book as to where to obtain the data files.The directory structure follows the structure presented in the book.  See chapter 2 for a full account.Details listings:Chapter 1---------Directory src:gps.py              A script to draw a GPS plot including annotation (the final example in the chapter)list_commands.py    A function that counts the number of times a GPS command is observedrecord_gps.py       A script to record GPS data.  Be sure to change the serial port settings to match yours.scanport.py         A script to list active COM ports.Directory data:GPS-2008-05-30-09-00-50.csv A sample GPS data file.Chapter 2---------No source listings in this chapter.Chapter 3---------Directory src:genodd.py           Several function implementations of the function odd.odd.py              The Odd class.Chapter 4---------Directory src:cmp_fd.py           A script to compare three different algorithms to search for duplicate files.  The script also includes the definition of the function get_all_files() that retrieves the names of all the files in a folder, recursively, including path, name and size.  Be sure to change the variable srchpath to point to a directory of your choosing.create_catalog.py   A script to create a catalog of files with extension "py".get_all_files.py    A function to retrieve all the files in a folder, recursively, including path, name and size.read_ini.py         A script to read INI (ConfigParser) files.read_write_structs.py   A script to read structure of binary data.running_index.py    A script to create unique filenames using a running index.stock_charts.py     A script to plot Yahoo! stock charts data.  Requires downloading the file charts.xls, refer to the example in the book.unique.py           A script to create unique filenames based on title, date and time stamp and an extension.write_ini.py        A script to write INI (ConfigParser) files.yahoo_data.py       A script to automatically retrieve and plot Yahoo! financial data.  Will create an image file in directory data.Directory data:Must exist for some of the scripts to run.Chapter 5---------Directory src:base_conversion.py  Base conversion helper functions.combine_epoch.py    A script to combine data based on the epoch.end-of-day.py       A script implementing an end-of-day report.head_large.py       A function implementing head functionality for very large files.head_tail.py        Function implementations of head and tail functionality.hebrew.py           The Hebrew alphabet.increment_contents.py   A script to increments the numeric values in a file.locale_date.py      A script to write today's date in a different locale.nonce.py            A function to find words only used once in a file.split_combine.py    Functions to split files into smaller chunks and combine the chunks back to form the original file.srchcomments.py     A function to search inside Python source comments.srchfile.py         Functions to search for text inside a file.testbases.py        A function to test the implementation of the base conversion functions (see base_conversion.py)wc.py               A function that returns the number of characters, words and lines in a file.wc_large.py         A function that returns the number of characters, words and lines in a large file.word_line_count.py  A function that returns the number of words and the numbers of lines in a string.writelog.py         A script to create a log file.Directory data:SystemALogs.txt     Data file for end-of-day.py script.SystemBLogs.txt     Data file for combine_epoch.py script.SystemCLogs.txt     Data file for combine_epoch.py script.Chapter 6---------Directory src:arrows.py           Arrows patch example.gdp_bar.py          A bar chart.  Requires world factbook file, see Chapter 6 for details.gdp_hist.py         A histogram.  Requires world factbook file, see Chapter 6 for details.gdp_pie.py          A pie chart.  Requires world factbook file, see Chapter 6 for details.logplot.py          A logarithmic plot.number_subplots.py  Numbers the subplots in a figure.patches.py          Matplotlib patches example.polarplot.py        A polar plot.quivplot.py         A quiver plot.read_world_data.py  A function to read and parse world data.  Requires world factbook file, see Chapter 6 for details.subplots.py         A subplot example.summary_plot.py     A summary plot.specplot.py         A specgram plot.Chapter 7---------Directory src:fourier_expansion.py    A Fourier expansion graph.fractal.py          A fractal implementation.friends.py          Friends meeting visualization.magicsq.py          Returns a magic square of size n; n must be odd.ndflat.py           An example showing n dimension array usage (comparing mortgage example)Directory images:Must exist for the fractal scripts to work properly.Chapter 8---------Directory src:exponential.py      Fitting exponential data.detect.py           Signal detection in noise example.filter_design.py    Filter design example.int_circle.py       Integrating half a circle.int_spline.py       Spline interpolation.int_trapz.py        Trapezoidal integration.hr_sim.py           Heart rate simulation.linear.py           Linear regression.moving_average.py   Filtering using a moving average.windowing.py        A signal with a Hamming window.Chapter 9---------Directory src:convert_all_to_jpeg.py  A function to convert all images in a directory to JPG format.convert_to_jpeg.py  A function to convert an image file to a JPG file.flood_fill.py       Flood fill function implementation.fractal_collage.py  A fractal collage, requires fractal_func.py.fractal_func.py     A function to generate fractal images.image_catalog.py    Creates a catalog file named srchpath.cat.csv.nightsky.py         Creates a fictitious night sky.process_stars.py    Counts the number of stars.  Run script nightsky.py first.rotate.py           Rotate example.star_examples.py    Show case some star patch examples.star_patch.py       Two implementations of star patches.text_annotation.py  A text annotation example.thumb_catalog.py    A function that implements a thumbnail index.Directory images:Must exist for the some of the examples to work properly.Chapter 10----------Directory src:binary_time.py      Creates a binary epoch time based file.cmp_dirs.py         Compare directory contents.  Uses files generated by script compression.py.cmp_files.py        Compare files.combine_epoch.py    A command line script to combine several files based on the epoch.  Example: python combine_epoch.py ../../Ch5/data/SystemBLogs.txt ../../Ch5/data/SystemCLogs.txt (in Windows, replace '/' with '\')compression.py      Archiving and compression example.empty_file.py       A stand-alone script to create an empty file of arbitrary size.empty_opt.py        A stand-alone script to create an empty file of arbitrary size using OptionParser module.extract.py          Extracting all files from a compressed archive.  Uses files generated by script compression.py.extract3.py         Extracting select files from a compressed archive.  Uses files generated by script compression.py.parse_args.py       Parsing command line arguments.pickle_dump.py      Pickling variables.pickle_load.py      Loading pickled variables.  Uses the output file generated by script pickle_dump.py.read_bin_time.py    Reading an epoch based binary data file.  Uses the output generated by script binary_time.pyseek_tell.py        Seek and tell example.srchfiles.py        A stand-alone script to search for strings in multiple files.tail_large.py       Tail functionality for very large files.Directory data:Must exist for some of the scripts to run.Appendix--------Directory src:magicsq_arrows.py   Visualization of magic square creation.nudge_subplot.py    Nudging subplots.nudge_subplot_old.py    Nudging subplots (older version of matplotlib).For function fractal_func.py, see Chapter 9.