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Ef-prime, Inc. is a company specialized on business data analysis.
We provide consulting, software development and training services.
Software tools are also available on this site.


Natto is a software for data analysis,
with a concept of "visible, touchable and comprehensible".
You can easilly extract valuable informations from your dataset
by mouse-driven functions, without almost any expert knowledge.

R AnalyticFlow is a software which enables
state-of-the-art data analysis by drawing analysis flowcharts.
You can effectively share processes of data analysis in collaborative works.

NEWS


2017/6/6 R AnalyticFlow version 3.1.0 is now available. See the project page for download.
2016/6/24 The new R AnalyticFlow website is now available. Please visit r.analyticflow.com.
2015/12/5 R AnalyticFlow version 3.0.0 is now available. See the project page for download.
2014/12/1 Slides of presentation about R AnalyticFlow 3 at useR! 2014 (Jun 30 - Jul 3 , US) is available here (pdf, revised).
2012/12/13 R AnalyticFlow version 2.0.0 is now available. See the project page for download.
2011/11/26 Follow our twitter account @efprime for the latest news about our software and sevices.
2009/12/29 New version of R AnalyticFlow version 1.0.0 is now available. See the project page for download.
2008/10/9 Slides of presentation about R AnalyticFlow at useR! 2008 (12-14 Aug, Germany) is available here (pdf).
2008/8/9 Data analysis tool R AnalyticFlow preview edition is now available. See the project page for download.
2007/2/14 Natto ver. 1.0.3 is now available.