dimension_schema

A <code>dimension_schema</code> object is created, we have to define its name and the
set of attributes that make it up.

Data in multidimensional systems is obtained from operational
systems and is transformed to adapt it to the new structure.
Frequently, the operations to be performed aim to transform a flat
table into a ROLAP (Relational On-Line Analytical Processing) star
database. The main objective of the package is to allow the definition
of these transformations easily. The implementation of the
multidimensional database obtained can be exported to work with
multidimensional analysis tools on spreadsheets or relational
databases.

Jose Samos

rolap

Obtaining Star Databases from Flat Tables

Universidad de Granada 

dimension_schema function

<dl><dt>name</dt>
<dd>A string, name of the dimension.</dd>
<dt>attributes</dt>
<dd>A vector of attribute names.</dd>
<dt>scd_nk</dt>
<dd>A vector of attribute names, scd natural key.</dd>
<dt>scd_t0</dt>
<dd>A vector of attribute names, scd T0 attributes.</dd>
<dt>scd_t1</dt>
<dd>A vector of attribute names, scd T1 attributes.</dd>
<dt>scd_t2</dt>
<dd>A vector of attribute names, scd T2 attributes.</dd>
<dt>scd_t3</dt>
<dd>A vector of attribute names, scd T3 attributes.</dd>
<dt>scd_t6</dt>
<dd>A vector of attribute names, scd T6 attributes.</dd>
<dt>is_when</dt>
<dd>A boolean, is when dimension.</dd>
<dt>...</dt>
<dd>When dimension configuration parameters.</dd></dl>

Arguments

dimension_schema S3 class — dimension_schema

<dl>

<dt>name</dt>
<dd>A string, name of the dimension.</dd>


<dt>attributes</dt>
<dd>A vector of attribute names.</dd>


<dt>scd_nk</dt>
<dd>A vector of attribute names, scd natural key.</dd>


<dt>scd_t0</dt>
<dd>A vector of attribute names, scd T0 attributes.</dd>


<dt>scd_t1</dt>
<dd>A vector of attribute names, scd T1 attributes.</dd>


<dt>scd_t2</dt>
<dd>A vector of attribute names, scd T2 attributes.</dd>


<dt>scd_t3</dt>
<dd>A vector of attribute names, scd T3 attributes.</dd>


<dt>scd_t6</dt>
<dd>A vector of attribute names, scd T6 attributes.</dd>


<dt>is_when</dt>
<dd>A boolean, is when dimension.</dd>


<dt>...</dt>
<dd>When dimension configuration parameters.</dd>

</dl>

dimension_schema: `dimension_schema` S3 class

Description

Usage

Value

Arguments

Details

See Also

Examples