developer pspp
The ___MASK38___ is a free software , mass collaboration project , announced on September 27 , 1983 , by Richard Stallman at MIT . Its aim is to give computer users freedom and control in their use of their computers and computing devices , by collaboratively developing and providing software that is based on the following freedom rights : users are free to run the software , share it ( copy , distribute ), study it and modify it . GNU software guarantees these freedom - rights legally ( via its license ), and is therefore free software ; the use of the word " free " always being taken to refer to freedom . ___MASK12___ SPSS Modeler is a data mining and text analytics software application from ___MASK12___ . It is used to build predictive models and conduct other analytic tasks . It has a visual interface which allows users to leverage statistical and data mining algorithms without programming . One of its main aims from the outset was to get rid of unnecessary complexity in data transformations , and to make complex predictive models very easy to use . The first version incorporated decision trees ( ID3 ), and neural networks ( backprop ), which could both be trained without underlying knowledge of how those techniques worked . SPSS Statistics is a software package used for logical batched and non - batched statistical analysis . Long produced by SPSS Inc ., it was acquired by ___MASK12___ in 2009 . The current versions ( 2015 ) are officially named ___MASK12___ SPSS Statistics . Companion products in the same family are used for survey authoring and deployment ( ___MASK12___ SPSS Data Collection ), data mining ( ___MASK12___ SPSS Modeler ), text analytics , and collaboration and deployment ( batch and automated scoring services ). The ___MASK45___ General Public License ( ___MASK45___ GPL or GPL ) is a widely used free software license , which guarantees end users the freedom to run , study , share and modify the software . The license was originally written by Richard Stallman of the ___MASK72___ ( FSF ) for the ___MASK38___ , and grants the recipients of a computer program the rights of the Free Software Definition . The GPL is a copyleft license , which means that derivative work can only be distributed under the same license terms . This is in distinction to permissive free software licenses , of which the BSD licenses and the MIT License are widely used examples . GPL was the first copyleft license for general use . PSPP is a free software application for analysis of sampled data , intended as a free alternative for ___MASK12___ SPSS Statistics . It has a graphical user interface and conventional command - line interface . It is written in C and uses ___MASK45___ Scientific Library for its mathematical routines . The name has `` no official acronymic expansion '' . The ___MASK45___ Scientific Library ( or GSL ) is a software library for numerical computations in applied mathematics and science . The GSL is written in C ; wrappers are available for other programming languages . The GSL is part of the ___MASK38___ and is distributed under the ___MASK45___ General Public License . SPSS Inc . was a software house headquartered in Chicago and incorporated in Delaware , most noted for the proprietary software of the same name SPSS . The company was started in 1968 when Norman Nie , Dale Bent , and Hadlai " Tex " Hull developed and started selling the SPSS software . The company was incorporated in 1975 , and Nie served as CEO from 1975 until 1992 . Jack Noonan served as CEO from 1992 until the 2009 acquisition of SPSS Inc . by ___MASK12___ . In 2008 SPSS Inc . had sales of and over 250 , 000 customers .