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h2o (version 3.0.0.30)

R Interface for H2O

Description

R scripting functionality for H2O, the open source math engine for big data that computes parallel distributed machine learning algorithms such as generalized linear models, gradient boosting machines, random forests, and neural networks (deep learning) within various cluster environments.

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Version

Install

install.packages('h2o')

Monthly Downloads

10,938

Version

3.0.0.30

License

Apache License (== 2.0)

Maintainer

Tom Kraljevic

Last Published

July 22nd, 2015

Functions in h2o (3.0.0.30)

H2OClusteringModel-class

The H2OClusteringModel object.
h2o.assign

Rename an H2O object.
h2o.centers

Retrieve the Model Centers
h2o.confusionMatrix

Access H2O Confusion Matrices
h2o.dim

Returns the Dimensions of a Parsed H2O Data Object.
h2o.ddply

Split H2O Dataset, Apply Function, and Return Results
h2o.hit_ratio_table

Retrieve the Hit Ratios
h2o.insertMissingValues

Inserting Missing Values to an H2O DataFrame
h2o.impute

# children <- list(c(paste0(',nAggs), unlist(lapply(aggs, function(l) { .args.to.ast(.args=l)}))))
h2o.giniCoef

Retrieve the GINI Coefficcient
h2o.median

H2O Median
h2o.parseSetup

Get a parse setup back for the staged data.
h2o.splitFrame

Split an H2O Data Set
h2o.naiveBayes

Naive Bayes Model in H2O
h2o.strsplit

String Split
h2o.varimp

Retrieve the variable importance.
h2o.withinss

Get the Within SS
h2o.coef

Retrieve the model coefficeints
H2OModel-class

The H2OModel object.
as.data.frame.H2OFrame

Converts a Parsed H2O data into a Data Frame
as.character,H2OFrame-method

Convert H2O Data to Characters
h2o.aic

Retrieve the AIC.
h2o.betweenss

Get the between cluster sum of squares.
h2o.deeplearning

Build a Deep Learning Neural Network
h2o.getConnection

Retrieve an H2O Connection
h2o.deepfeatures

Feature Generation via H2O Deep Learning Model
h2o.kmeans

KMeans Model in H2O
h2o.ls

List Keys on an H2O Cluster
h2o.rep_len

Replicate Elements of Vectors or Lists into H2O
h2o.tot_withinss

Get the total within cluster sum of squares.
h2o.tolower

To Lower
h2o.weights

Retrieve the respective weight matrix
H2OConnection-class

The H2OConnection class.
H2OS4groupGeneric

S4 Group Generic Functions for H2O
H2OW2V-class

The H2OW2V object.
H2ORawData-class

The H2ORawData class.
h2o.auc

Retrieve the AUC
aaa

Starting H2O For examples
h2o.anyFactor

Check H2OFrame columns for factors
h2o.biases

Return the respective bias vector
h2o.cbind

Combine H2O Datasets by Columns
colnames<-,H2OFrame,H2OFrame-method

Returns Column Names for a Parsed H2O Data Object.
h2o.clusterIsUp

Determine if an H2O cluster is up or not
h2o.exportHDFS

Export a H2OFrame to HDFS
h2o.filterNACols

Filter NA Coluns
h2o.getGLMModel

Resolve a GLM H2O Futures Model
h2o.group_by

Group and Apply by Column
h2o.killMinus3

Dump the stack into the JVM's stdout.
h2o.length

Returns the Length of a Parsed H2O Data Object.
h2o.init

Initialize and Connect to H2O
h2o.logloss

Retrieve the Log Loss Value
h2o.month

Convert Milliseconds to Months in H2O Datasets
h2o.mse

Retrieves Mean Squared Error Value
h2o.makeGLMModel

Remake an H2O GLM Model
h2o.null_deviance

Retrieve the null deviance
h2o.prcomp

Principal Components Analysis
h2o.randomForest

Build a Big Data Random Forest Model
h2o.setTimezone

Set the Time Zone on the H2O Cloud
h2o.residual_dof

Retrieve the residual degrees of freedom
h2o.transform

Transform Columns in an H2OFrame Object.
h2o.svd

Singular Value Decomposition
h2o.totss

Get the total sum of squares.
is.factor,H2OFrame-method

Is H2O Data Frame column a enum
h2o.week

Convert Milliseconds to Week of Week Year in H2O Datasets
h2o.subset

Subsetting an H2O Frame
ASTNode-class

The ASTNode class.
H2OObject-class

The H2OObject class
H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object
apply,H2OFrame-method

Apply on H2O Datasets
as.numeric,H2OFrame-method

Convert H2O Data to Numeric
as.factor,H2OFrame-method

Convert H2O Data to Factors
h2o.centroid_stats

Retrieve the centroid statistics
h2o.createFrame

Data Frame Creation in H2O
h2o.downloadAllLogs

Download H2O Log Files to Disk
h2o.gsub

String Global Substitute
h2o.merge

Merge Two H2O Data Frames
h2o.metric

H2O Model Metric Accessor Functions
h2o.shutdown

Shut Down H2O Instance
h2o.summary

Summarizes the columns of a H2O data frame.
h2o.glrm

Generalized Low Rank Model
h2o.nrow

The Number of Rows/Columns of an H2O Dataset
h2o-package

H2O R Interface
h2o.centersSTD

Retrieve the Model Centers STD
H2OModelFuture-class

H2O Future Model
h2o.day

Convert Milliseconds to Day of Month in H2O Datasets
h2o.gbm

Gradient Boosted Machines
h2o.listTimezones

List all of the Time Zones Acceptable by the H2O Cloud.
h2o.openLog

View H2O R Logs
h2o.rbind

Combine H2O Datasets by Rows
h2o.startLogging

Start Writing H2O R Logs
h2o.shim

Deprecated Script Shim
h2o.stopLogging

Stop Writing H2O R Logs
sapply,H2OFrame-method

Apply Over a List in H2O
print.H2OTable

Print method for H2OTable objects
predict.H2OModel

Predict on an H2O Model
h2o.mean

Mean of a column
H2OModelMetrics-class

The H2OModelMetrics Object.
as.environment,H2OFrame-method

Convert H2O Data to an R Enviornment
h2o.anomaly

Anomaly Detection via H2O Deep Learning Model
h2o.getFrame

Get an R Reference to an H2O Dataset
h2o.importFile

Import Files into H2O
h2o.hour

Convert Milliseconds to Hour of Day in H2O Datasets
h2o.levels

Return the levels from the column requested column.
h2o.nlevels

Return the number of levels in the column.
h2o.interaction

Categorical Interaction Feature Creation in H2O
h2o.null_dof

Retrieve the null degrees of freedom
h2o.residual_deviance

Retrieve the residual deviance
h2o.year

Convert Milliseconds to Years in H2O Datasets
h2o.trim

Trim Space
summary,H2OModel-method

Print the Model Summary
h2o.num_iterations

Retrieve the number of iterations.
h2o.startGLMJob

Start an H2O Generalized Linear Model Job
h2o.sd

Standard Deviation of a column of data.
h2o.dayOfWeek

Convert Milliseconds to Day of Week in H2O Datasets
Node-class

The Node class.
h2o.exportFile

Export an H2O Data Frame to a File
h2o.download_pojo

Download the Scoring POJO of An H2O Model
h2o.hist

Compute A Histgram
h2o.parseRaw

H2O Data Parsing
h2o.quantile

Quantiles of H2O Data Frame.
h2o.setLevel

Set a Factor Column to a Level
h2o.scoreHistory

Retrieve Model Score History
h2o.runif

Produe a Vector of Random Uniform Numbers
h2o.toupper

To Upper
h2o.sub

String Substitute
as.h2o

R data.frame -> H2OFrame
h2o.clusterInfo

Print H2O cluster info
h2o.cut

Cut H2O Numeric Data to Factor
h2o.ifelse

H2O Apply Conditional Statement
h2o.getTimezone

Get the Time Zone on the H2O Cloud
h2o.networkTest

View Network Traffic Speed
h2o.performance

Model Performance Metrics in H2O
h2o.r2

Retrieve the R2 value
h2o.saveModel

Save an H2O Model Object to Disk
h2o.var

Variance of a column.
h2o.clearLog

Delete All H2O R Logs
ModelAccessors

Accessor Methods for H2OModel Object
h2o.loadModel

Load H2O Model from HDFS or Local Disk
h2o.clusterStatus

Return the status of the cluster
h2o.rm

Delete Objects In H2O
h2o.downloadCSV

Download H2O Data to Disk
h2o.head

Return the Head or Tail of an H2O Dataset.
h2o.removeAll

Remove All Objects on the H2O Cluster
H2OFrame-class

The H2OFrame class
h2o.cluster_sizes

Retrieve the cluster sizes
h2o.setLevels

Set Levels of H2O Factor Column
h2o.coef_norm

Retrieve the normalized coefficients
h2o.removeVecs

Delete Columns from a H2OFrame
zzz

Shutting down H2O for examples
h2o.getModel

Get an R reference to an H2O model
h2o.logAndEcho

Log a message on the server-side logs
h2o.scale

Scaling and Centering of an H2O Frame
h2o.table

Cross Tabulation and Table Creation in H2O
str.H2OFrame

Describe an H2OFrame object
h2o.glm

H2O Generalized Linear Models
h2o.match

Value Matching in H2O