RSDA: An R package for symbolic data analysis

 

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RSDA: An R package for symbolic data analysis

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university of costa rica

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· rsda is an r package for symbolic data analysis based on university of costa rica

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· postgresql is a powerful both free and open source object-relational database system · was created in 1986 by a computer science professor named michael stonebraker at the university of california at berkeley · postgresql allows the creation of arrays of arbitrary complex compound types university of costa rica

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· postgresql allows the creation of arrays of arbitrary complex compound types university of costa rica

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· r is an open source language and environment for statistical computing and graphics r can be considered as a different implementation of language s · was developed at bell laboratories by the stanford university professor john chambers and colleagues · r provides a wide variety of statistical and graphical techniques and it is highly extensible university of costa rica

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rsda assumptions on symbolic data analysis assumption 1 assumptions 2 input symbolic output symbolic university of costa rica

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rsda architecture postgresql vsog sqlserver oracle excel symbolic object propagation mysql university of costa rica

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· vsog is an application implemented in c that allows access to relational databases and to get symbolic data from data stored there · vsog creates symbolic objects through a visual and graphic procedure · an wizard guides the user in order to build symbolic object data table university of costa rica

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connection with relational database · a dialogue box will be displayed for the user from which the type of data source must be selected · it is necessary to specify the data source postgressql mysql oracle ms sql server or other university of costa rica

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selection of the concept/symbolic object · the user can choose the individual symbolic object that will appear in the lines of the symbolic table that will call concept in vsog · then the user can also select related tables and group concepts university of costa rica

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variables to be contained in the symbolic table · the user can select the variables that will be part of the symbolic table and to specify the type of symbolic variables intervals histograms etc that will be built from those variables university of costa rica

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conditioning a variable filters · in vsog it is possible to create filters on the variables and in this way perform a more specific analysis and symbolic tables university of costa rica

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generating the symbolic table · the process of calculating the symbolic objects will start automatically generating the symbolic table store directly in postgresql university of costa rica

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rsda process postgresql vsog sqlserver oracle excel symbolic object propagation mysql university of costa rica

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rsda process symbolic object propagation university of costa rica

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