Man pages for datadr
Divide and Recombine for Large, Complex Data
| addData | Add Key-Value Pairs to a Data Connection |
| addTransform | Add a Transformation Function to a Distributed Data Object |
| adult | "Census Income" Dataset |
| applyTransform | Apply transformation function(s) |
| as.data.frame.ddf | Turn 'ddf' Object into Data Frame |
| as.list.ddo | Turn 'ddo' / 'ddf' Object into a list |
| bsv | Construct Between Subset Variable (BSV) |
| charFileHash | Character File Hash Function |
| combCollect | "Collect" Recombination |
| combDdf | "DDF" Recombination |
| combDdo | "DDO" Recombination |
| combMean | Mean Recombination |
| combMeanCoef | Mean Coefficient Recombination |
| combRbind | "rbind" Recombination |
| condDiv | Conditioning Variable Division |
| convert | Convert 'ddo' / 'ddf' Objects |
| datadr-package | datadr |
| ddf | Instantiate a Distributed Data Frame ('ddf') |
| ddf-accessors | Accessor methods for 'ddf' objects |
| ddo | Instantiate a Distributed Data Object ('ddo') |
| ddo-ddf-accessors | Accessor Functions |
| ddo-ddf-attributes | Managing attributes of 'ddo' or 'ddf' objects |
| digestFileHash | Digest File Hash Function |
| divide | Divide a Distributed Data Object |
| divide-internals | Functions used in divide() |
| drAggregate | Division-Agnostic Aggregation |
| drBLB | Bag of Little Bootstraps Transformation Method |
| drFilter | Filter a 'ddo' or 'ddf' Object |
| drGetGlobals | Get Global Variables and Package Dependencies |
| drGLM | GLM Transformation Method |
| drHexbin | HexBin Aggregation for Distributed Data Frames |
| drJoin | Join Data Sources by Key |
| drLapply | Apply a function to all key-value pairs of a ddo/ddf object |
| drLM | LM Transformation Method |
| drPersist | Persist a Transformed 'ddo' or 'ddf' Object |
| drQuantile | Sample Quantiles for 'ddf' Objects |
| drRead.table | Data Input |
| drSample | Take a Sample of Key-Value Pairs Take a sample of key-value... |
| drSubset | Subsetting Distributed Data Frames |
| flatten | "Flatten" a ddf Subset |
| getCondCuts | Get names of the conditioning variable cuts |
| hdfsConn | Connect to Data Source on HDFS |
| kvApply | Apply Function to Key-Value Pair |
| kvPair | Specify a Key-Value Pair |
| kvPairs | Specify a Collection of Key-Value Pairs |
| localDiskConn | Connect to Data Source on Local Disk |
| localDiskControl | Specify Control Parameters for MapReduce on a Local Disk... |
| makeExtractable | Take a ddo/ddf HDFS data object and turn it into a mapfile |
| mrExec | Execute a MapReduce Job |
| mr-summary-stats | Functions to Compute Summary Statistics in MapReduce |
| pipe | Pipe data |
| print.ddo | Print a "ddo" or "ddf" Object |
| print.kvPair | Print a key-value pair |
| print.kvValue | Print value of a key-value pair |
| readHDFStextFile | Experimental HDFS text reader helper function |
| readTextFileByChunk | Experimental sequential text reader helper function |
| recombine | Recombine |
| removeData | Remove Key-Value Pairs from a Data Connection |
| rhipeControl | Specify Control Parameters for RHIPE Job |
| rrDiv | Random Replicate Division |
| setupTransformEnv | Set up transformation environment |
| splitvars | Extract "Split" Variable(s) |
| to_ddf | Convert dplyr grouped_df to ddf |
| updateAttributes | Update Attributes of a 'ddo' or 'ddf' Object |
