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toaster (version 0.4.2)

Big Data in-Database Analytics with Teradata Aster

Description

A consistent set of tools to perform in-database analytics on Teradata Aster Big Data Discovery Platform. toaster (a.k.a 'to Aster') embraces simple 2-step approach: compute in Aster - visualize and analyze in R. Its `compute` functions use combination of SQL and SQL/MR functions running in Aster database - highly scalable parallel and distributed analytical platform. Then `create` functions visualize results with boxplots, scatterplots, histograms, heatmaps, word clouds, maps, or slope graphs. Advanced options such as faceting, coloring, labeling, and others are supported with most functions.

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Install

install.packages('toaster')

Monthly Downloads

3

Version

0.4.2

License

GPL-2

Issues

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Repository

https://github.com/teradata-aster-field/toaster

Maintainer

Gregory Kanevsky

Last Published

January 22nd, 2016

Functions in toaster (0.4.2)

createBubblechart

Create Bubble Chart type of plot.

createCentroidPlot

Create plot of cluster centroids.

computeSilhouette

Compute Silhouette (k-means clustering).

Locate map, geocode data, then plot both.

getGradientPaletteFactory

Generate gradient palette maker

toaster: analytical and visualization toolbox for Teradata Aster

getTableSummary

Compute columnwise statistics on Aster table.

computeCorrelations

Compute correlation between pairs of columns.

makeTempTableName

Make Aster temporary table name.

getMatchingColumns

Filter columns by pattern.

Plot table level statistics, histograms, correlations and scatterplots in one go.

getTemporalColumns

Filter Date and Time Table Columns.

Compute term frequencies on a corpus.

createPopPyramid

Create Population Pyramid type of histogram plot.

Counts nulls per column in the table.

Test if table present in the database.

createClusterPairsPlot

Create cluster variable plot.

Create Heat Map type of plot.

getNumericTypes

List Aster numeric data types.

computeClusterSample

Random sample of clustered data

Compute Term Frequency - Inverse Document Frequency on a corpus.

computeBarchart

Compute one or more aggregates across single class.

getCharacterTypes

List Aster character data types.

createClusterPlot

Create clusters' properties plot.

computeAggregates

Compute aggregate values.

Tokenize (or split) text and emit multi-grams.

Perform k-means clustering on the table.

createWordcloud

Create Word Cloud Visualization.

Creates empty theme.

Create box plot.

Fit Linear Model and return its coefficients.

createHistogram

Create histogram type of plot.

createSilhouetteProfile

Create cluster silhouette profile plot.

Give a deprecation error, warning, or messsage, depending on version number.

Tokenize (or split) text and emit n-word combinations from a document.

getNumericColumns

Filter numeric columns.

Compute 2-dimensional multi-layered matrix for heat map visualizations.

getCharacterColumns

Filter character columns.

getDiscretePaletteFactory

Generate discrete palette maker

getTemporalTypes

List Aster temporal data types.

Randomly sample data from the table.

computePercentiles

Compute percentiles of column values.

computeHistogram

Compute histogram distribution of the column.

viewTableSummary

Invoke a Data Viewer on table statistics.

createSlopegraph

Create plot with Slope Graph visualization.