Rich Get Richer

Created: 2009-02-05 02:42:42

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This workflow is a replication of the analysis from an OSCon 2004 presentation by Megan Conklin, entitled "Do the Rich Get Richer?" to demonstrate scale-free distribution of FLOSS developers among projects.

The workflow retrieves the current number of active developers (for the most recent calculation of said statistic) from the FLOSSmole database. It summarizes and plots the distribution of developers to projects, on both a straight and log-log scale. It also generates a flat list of the developer counts for visualization in other software.

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Option 1:

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http://myexperiment.org/workflows/643/download?version=1
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Workflow Components

Inputs (0)

Processors (7)

Name	Type	Description
delist_dev_numbers	local	Changes the number of developers from the list format into a delimited format.
get_developer_data	local	SQL query to fetch developer data from the FLOSSmole database. Retrieves data for all projects which have available data in the database. Please inquire from ossmole-discuss@lists.sourceforge.net for database access.
flatten_dev_numbers	local	Flattens the SQL list.
output_points	rshell	Produces a list of the data points for plotting with other software.
plot_distribution	rshell	Plots the distributions of developers to projects on a straight scale.
log_plot	rshell	Plots the distribution of developers to projects on a log-log scale.
distribution_summary	rshell	Calculates summary statistics for the distribution.

Beanshells (0)

Outputs (4)

Name	Description
Summary	Descriptive stats summary of developer-project distribution.
DistributionPlot	PNG plot of the distribution of developers to projects.
LogPlot	PNG graphic plot of log-log distribution of developers to projects.
PointList	List of points for plotting in other software.

Links (10)

Source	Sink
delist_dev_numbers:concatenated	distribution_summary:dev_numbers
delist_dev_numbers:concatenated	log_plot:dev_numbers
delist_dev_numbers:concatenated	output_points:dev_nums
delist_dev_numbers:concatenated	plot_distribution:dev_numbers
flatten_dev_numbers:outputlist	delist_dev_numbers:stringlist
get_developer_data:resultList	flatten_dev_numbers:inputlist
distribution_summary:dev_dist	Summary
log_plot:log_plot	LogPlot
output_points:point_list	PointList
plot_distribution:dist_plot	DistributionPlot