pyre.tabular.Chart

Module Contents

class pyre.tabular.Chart.Chart(sheet, **kwds)

The base class for imposing coördinate systems on sheets

A chart contains the specification of a number of dimensions that enable the categorization and analysis of the facts in a sheet. For example, given a sales table that contains transaction information that includes date, sku and amount, a chart with these three dimensions would simplify answering questions such as “compute the total sales of a given sku in a given time period”.

Charts are used by pivot tables as a means of imposing structure on the data and precomputing data slices. See {pyre.tabular.Pivot} and the {pyre.tabular.Dimension} subclasses for more details.

pyre_sheets

pyre_dimensions

pyre_localDimensions

pyre_filter(self, **kwds)

Create an iterable over those facts that statisfy the criteria specified in {kwds}, which is assumed to be a value specification for each dimension that is to be used to restrict the data set