This file documents the changes made in each release of CLIChart.
Issued 2008-06-15
aggregate
- BUG: Result values with 5 or more digits were sometimes incorrectly formatted
cliserver
- BUG: Exception from JFreeChart (e.g. duplicate data item) no longer causes stack trace with no response in cliserver mode, but instead returns an error message
histogram
- A new script for generating histograms to show data frequency.
Issued 2007-06-11
general
- All Python scripts now use psyco (if available), to speed up processing, with --nojit option to disable
- BUG: CSV output for fields containing double quotes without spaces did not escape the quotes
discretestats
- Value headings are now sorted alphabetically on output
- BUG: removed trailing white space at end of line for text output
linestats
- BUG: Default keyspec (if no -k option) missed the first character in the line
- BUG: removed trailing white space at end of line for text output
documentation
- Added FAQ
- Added FAQ entry on Windows bug piping data to Python scripts
- Changed documentation to distinguish between CLIChart (the project) and clichart (the tool).
Issued 2007-06-03
cliserver
- BUG: Fixed NullPointerException if input file consists only of partial headers
- BUG: Fixed exception if input file does not contain sufficient headers
cliserverlib
- Added ability to locate clichart via the PATH (needed for Windows, since no symlinks are available)
aggregate
- Added ability to specify simple expressions for columns, e.g. '1:tot / 60'
- Improved messages for typical errors (and without stack traces, even :)
- BUG: Fixed embarassing error reading data from stdin
- Added an example of using aggregate to the quick start documentation.
Issued 2007-04-22
cliserverlib
- Previously failed to read responses under Python 2.2, due to use of a 2.3 API
discretestats
- Improved error messages for invalid options and data
linestats
- Improved error messages for invalid options and data
Documentation updates.
Issued 2007-04-14
clichart
- Added a CLI server mode (using --cliserver), where clichart is controlled by commands from stdin. This allows clichart to be used efficiently when many charts are to be generated, since the program need only be started once. Input can come from a command file, from a script or program (see cliserverlib for Python programs), or (for debugging) via an interactive telnet-like session
- Added seriestitles and seriestitles2 options, to allow setting/overriding of data series titles for display in the legend
- Message about saving chart (to stderr) now only prints if saved from GUI.
cliserverlib
- A new Python driver library for interacting with the new CLI server mode of clichart. Makes it very easy and efficient to generate charts based on tabular data files from Python scripts.
aggregate
- A new script for extracting aggregate data from 1 or more tabular data files. This script can output any or all of the following data for any numeric column in the file: minimum, maximum, average, total, count, first value or last value. Mostly used to summarise data from many files, e.g. for generating long-term trend charts from day-by-day data files.
Documentation updates.
Issued 2007-04-06
clichart
- BUG: shell script failed to follow relative symlinks that were not in the current directory
- Minor documentation update
Issued 2007-04-01 (don't read anthing into this...)
clichart
Added the ability to draw first or second Y axis as a bar chart (histogram)
Added the ability to control line/bar weights (widths), and draw shapes to indicate data points
Significant new functionality on interactive chart window (courtesy of JFreechart):
- Tooltips to show data points
- Popup context menu
- Ability to customise most aspects of chart via GUI (but not second Y axis)
- Zoom in/out
Restructured Main class to provide a better API for using clichart as a library
Upgrade to JFreechart 1.0.5
BUG: Second axis previously always started at 0
BUG: clichart.bat didn't lauch clichart, as the Jar filename was incorrect
BUG: clichart.bat didn't correctly interpret JAVA_HOME (I just love batch files...)
Issued 2007-03-18
The final release of version 0.5.0. Changes made since -rc3:
clichart
- Removed output on duplicate lines ignored
- BUG: in scripted mode, always saved as JPG even if filename was PNG
- BUG: failed to generate chart if running headless (i.e. no X display on Linux/Unix)
- BUG: readlink options in shell script were not valid on older versions of Linux/Cygwin
Documentation updates and corrections
Issued 2007-03-11
This is the first public release of clichart. It's a rewrite in Java of the original Jython version, and has the following main features:
- Displays charts in a window (with option to save), or non-interactive saving to disk
- Accepts data in comma- or whitespace-separated formats
- Reads data from a file, or piped into its standard input
- Displays XY line charts, with the X axis based on dates, times or values. The Y axis must be simple values (integer or decimal).
In addition, it's packaged with:
- linestats, which generates grouped summary statistics (count, minimum, average, maximum, total) from line-based textual data, and
- discretestats, which generates grouped counts of discrete field values from line-based textual data.
- mid, which extracts lines of data from files, like a combination of head and tail