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h2o (version 3.10.3.6)

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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Install

install.packages('h2o')

Monthly Downloads

9,655

Version

3.10.3.6

License

Apache License (== 2.0)

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Maintainer

Tom Kraljevic

Last Published

February 22nd, 2017

Functions in h2o (3.10.3.6)

as.data.frame.H2OFrame

Converts parsed H2O data into an R data frame
&&

Logical and for H2OFrames
as.character.H2OFrame

Convert an H2OFrame to a String
as.factor

Convert H2O Data to Factors
apply

Apply on H2O Datasets
aaa

Starting H2O For examples
as.matrix.H2OFrame

Convert an H2OFrame to a matrix
as.h2o

Create H2OFrame
as.numeric

Convert H2O Data to Numeric
as.vector.H2OFrame

Convert an H2OFrame to a vector
h2o.anomaly

Anomaly Detection via H2O Deep Learning Model
dimnames.H2OFrame

Column names of an H2OFrame
dim.H2OFrame

Returns the Dimensions of an H2OFrame
h2o.abs

Compute the absolute value of x
h2o.all

Given a set of logical vectors, are all of the values true?
australia

Australia Coastal Data
colnames

Returns the column names of an H2OFrame
h2o.acos

Compute the arc cosine of x
h2o.aic

Retrieve the AIC.
h2o-package

h2o.betweenss

Get the between cluster sum of squares.
h2o.assign

Rename an H2O object.
h2o.asfactor

Convert H2O Data to Factors
h2o.asnumeric

Convert H2O Data to Numerics
h2o.auc

Retrieve the AUC
h2o.ascharacter

Convert H2O Data to Characters
h2o.as_date

Functions to convert between character representations and objects of class "Date" representing calendar dates.
h2o.anyFactor

Check H2OFrame columns for factors
h2o.arrange

Sorts H2OFrame by the columns specified. Returns a new H2OFrame, like dplyr::arrange.
h2o.any

Given a set of logical vectors, is at least one of the values true?
h2o.clearLog

Delete All H2O R Logs
h2o.centersSTD

Retrieve the Model Centers STD
h2o.biases

Return the respective bias vector
h2o.clusterIsUp

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

Retrieve the cluster sizes
h2o.clusterInfo

Print H2O cluster info
h2o.ceiling

ceiling takes a single numeric argument x and returns a
h2o.centroid_stats

Retrieve the centroid statistics
h2o.centers

Retrieve the Model Centers
h2o.cbind

Combine H2O Datasets by Columns
h2o.connect

Connect to a running H2O instance.
h2o.clusterStatus

Return the status of the cluster
h2o.cos

Compute the cosine of x
h2o.columns_by_type

Obtain a list of columns that are specified by `coltype`
h2o.coef_norm

Retrieve the normalized coefficients
h2o.cor

Correlation of columns.
h2o.colnames

Return column names of an H2OFrame
h2o.computeGram

Compute weighted gram matrix.
h2o.coef

Retrieve the model coefficeints
h2o.confusionMatrix

Access H2O Confusion Matrices
h2o.cummin

Return the cumulative min over a column or across a row
h2o.cumsum

Return the cumulative sum over a column or across a row
h2o.createFrame

Data H2OFrame Creation in H2O
h2o.cross_validation_fold_assignment

Retrieve the cross-validation fold assignment
h2o.cross_validation_holdout_predictions

Retrieve the cross-validation holdout predictions
h2o.cross_validation_models

Retrieve the cross-validation models
h2o.cummax

Return the cumulative max over a column or across a row
h2o.cumprod

Return the cumulative product over a column or across a row
h2o.cross_validation_predictions

Retrieve the cross-validation predictions
h2o.cosh

Compute the hyperbolic cosine of x
h2o.deepfeatures

Feature Generation via H2O Deep Learning Model
h2o.describe

H2O Description of A Dataset
h2o.deepwater.available

Ask the H2O server whether a Deep Water model can be built (depends on availability of native backends)
h2o.ddply

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

Convert Milliseconds to Day of Week in H2O Datasets
h2o.dct

Compute DCT of an H2OFrame
h2o.cut

Cut H2O Numeric Data to Factor
h2o.day

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

Build a Deep Learning model using multiple native GPU backends
h2o.deeplearning

Build a Deep Neural Network model using CPUs
h2o.dim

Returns the number of rows and columns for an H2OFrame object.
h2o.download_pojo

Download the Scoring POJO (Plain Old Java Object) of an H2O Model
h2o.difflag1

Conduct a lag 1 transform on a numeric H2OFrame column
h2o.dimnames

Column names of an H2OFrame
h2o.entropy

Shannon entropy
h2o.exp

Compute the exponential function of x
h2o.downloadCSV

Download H2O Data to Disk
h2o.downloadAllLogs

Download H2O Log Files to Disk
h2o.exportFile

Export an H2O Data Frame (H2OFrame) to a File or to a collection of Files.
h2o.download_mojo

Download the model in MOJO format.
h2o.find_row_by_threshold

Find the threshold, give the max metric. No duplicate thresholds allowed
h2o.floor

floor takes a single numeric argument x and returns a numeric
h2o.findSynonyms

Find synonyms using a word2vec model.
h2o.gainsLift

Access H2O Gains/Lift Tables
h2o.find_threshold_by_max_metric

Find the threshold, give the max metric
h2o.getFrame

Get an R Reference to an H2O Dataset, that will NOT be GC'd by default
h2o.getConnection

Retrieve an H2O Connection
h2o.exportHDFS

Export a Model to HDFS
h2o.filterNACols

Filter NA Columns
h2o.gbm

Builds gradient boosted classification trees and gradient boosted regression trees on a parsed data set.
h2o.getVersion

Get h2o version
h2o.getGrid

Get a grid object from H2O distributed K/V store. Note that if neither cross-validation nor a
h2o.getId

Get back-end distributed key/value store id from an H2OFrame.
h2o.giniCoef

Retrieve the GINI Coefficcient
h2o.getFutureModel

Get future model
h2o.getModel

Get an R reference to an H2O model
h2o.getGLMFullRegularizationPath

Extract full regularization path from glm model (assuming it was run with lambda search option)
h2o.glm

Fits a generalized linear model, specified by a response variable, a set of predictors, and a
h2o.getTypes

Get the types-per-column
h2o.getTimezone

Get the Time Zone on the H2O Cloud
h2o.grid

H2O Grid Support
h2o.grep

Searches for matches to argument `pattern` within each element
h2o.group_by

Group and Apply by Column
h2o.gsub

String Global Substitute
h2o.glrm

Generalized low rank decomposition of an H2O data frame.
h2o.hit_ratio_table

Retrieve the Hit Ratios
h2o.hist

Compute A Histogram
h2o.head

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

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

H2O Apply Conditional Statement
h2o.interaction

Categorical Interaction Feature Creation in H2O
h2o.import_sql_table

Import SQL Table into H2O
h2o.impute

Basic Imputation of H2O Vectors
h2o.is_client

Check Client Mode Connection
h2o.init

Initialize and Connect to H2O
h2o.ischaracter

Check if character
h2o.isax

iSAX
h2o.import_sql_select

Import SQL table that is result of SELECT SQL query into H2O
h2o.insertMissingValues

Inserting Missing Values to an H2O DataH2OFrame
h2o.importFile

Import Files into H2O
h2o.isnumeric

Check if numeric
h2o.kurtosis

Kurtosis of a column
h2o.log

Compute the logarithm of x
h2o.killMinus3

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

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

Produce a k-fold column vector.
h2o.kmeans

Performs k-means clustering on an H2O dataset.
h2o.loadModel

Load H2O Model from HDFS or Local Disk
h2o.listTimezones

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

Check if factor
h2o.lstrip

Strip set from left
h2o.log10

Compute the log10 of x
h2o.make_metrics

Create Model Metrics from predicted and actual values in H2O
h2o.ls

List Keys on an H2O Cluster
h2o.mae

Retrieve the Mean Absolute Error Value
h2o.logloss

Retrieve the Log Loss Value
h2o.logAndEcho

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

Set betas of an existing H2O GLM Model
h2o.log2

Compute the log2 of x
h2o.log1p

Compute the log1p of x
h2o.max

Returns the maxima of the input values.
h2o.match

Value Matching in H2O
h2o.mean

Compute the frame's mean by-column (or by-row).
h2o.median

H2O Median
h2o.merge

Merge Two H2O Data Frames
h2o.min

Returns the minima of the input values.
h2o.mean_residual_deviance

Retrieve the Mean Residual Deviance value
h2o.mktime

Compute msec since the Unix Epoch
h2o.metric

H2O Model Metric Accessor Functions
h2o.mean_per_class_error

Retrieve the mean per class error
h2o.na_omit

Remove Rows With NAs
h2o.mse

Retrieves Mean Squared Error Value
h2o.nchar

String length
h2o.naiveBayes

Compute naive Bayes probabilities on an H2O dataset.
h2o.nlevels

Get the number of factor levels for this frame.
h2o.names

Column names of an H2OFrame
h2o.ncol

Return the number of columns present in x.
h2o.month

Convert Milliseconds to Months in H2O Datasets
h2o.networkTest

View Network Traffic Speed
h2o.nacnt

Count of NAs per column
h2o.no_progress

Disable Progress Bar
h2o.nrow

Return the number of rows present in x.
h2o.null_dof

Retrieve the null degrees of freedom
h2o.null_deviance

Retrieve the null deviance
h2o.num_valid_substrings

Count of substrings >= 2 chars that are contained in file
h2o.parseRaw

H2O Data Parsing
h2o.partialPlot

Partial Dependence Plots
h2o.num_iterations

Retrieve the number of iterations.
h2o.parseSetup

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

View H2O R Logs
h2o.range

Returns a vector containing the minimum and maximum of all the given arguments.
h2o.quantile

Quantiles of H2O Frames.
h2o.prod

Return the product of all the values present in its arguments.
h2o.print

Print An H2OFrame
h2o.rbind

Combine H2O Datasets by Rows
h2o.randomForest

Builds a Random Forest Model on an H2OFrame
h2o.proj_archetypes

Convert Archetypes to Features from H2O GLRM Model
h2o.r2

Retrieve the R2 value
h2o.prcomp

Principal components analysis of an H2O data frame using the power method
h2o.performance

Model Performance Metrics in H2O
h2o.removeAll

Remove All Objects on the H2O Cluster
h2o.rmsle

Retrieve the Root Mean Squared Log Error
h2o.removeVecs

Delete Columns from an H2OFrame
h2o.rm

Delete Objects In H2O
h2o.reconstruct

Reconstruct Training Data via H2O GLRM Model
h2o.rep_len

Replicate Elements of Vectors or Lists into H2O
h2o.residual_deviance

Retrieve the residual deviance
h2o.relevel

Reorders levels of an H2O factor, similarly to standard R's relevel.
h2o.residual_dof

Retrieve the residual degrees of freedom
h2o.rmse

Retrieves Root Mean Squared Error Value
h2o.scale

Scaling and Centering of an H2OFrame
h2o.round

Round doubles/floats to the given number of decimal places.
h2o.rstrip

Strip set from right
h2o.scoreHistory

Retrieve Model Score History
h2o.sd

Standard Deviation of a column of data.
h2o.runif

Produce a Vector of Random Uniform Numbers
h2o.saveModel

Save an H2O Model Object to Disk
h2o.sdev

Retrieve the standard deviations of principal components
h2o.setLevels

Set Levels of H2O Factor Column
h2o.saveMojo

Save an H2O Model Object as Mojo to Disk
h2o.signif

Round doubles/floats to the given number of significant digits.
h2o.setTimezone

Set the Time Zone on the H2O Cloud
h2o.skewness

Skewness of a column
h2o.startLogging

Start Writing H2O R Logs
h2o.sin

Compute the sine of x
h2o.stackedEnsemble

Build a stacked ensemble (aka. Super Learner) using the H2O base
h2o.shutdown

Shut Down H2O Instance
h2o.show_progress

Enable Progress Bar
h2o.sqrt

Compute the square root of x
h2o.splitFrame

Split an H2O Data Set
h2o.substring

Substring
h2o.sub

String Substitute
h2o.sum

Compute the frame's sum by-column (or by-row).
h2o.stopLogging

Stop Writing H2O R Logs
h2o.str

Display the structure of an H2OFrame object
h2o.table

Cross Tabulation and Table Creation in H2O
h2o.strsplit

String Split
h2o.summary

Summarizes the columns of an H2OFrame.
h2o.svd

Singular value decomposition of an H2O data frame using the power method.
h2o.std_coef_plot

Plot Standardized Coefficient Magnitudes
h2o.transform

Transform words to vectors using a word2vec model.
h2o.tolower

To Lower
h2o.toupper

To Upper
h2o.tanh

Compute the hyperbolic tangent of x
h2o.tot_withinss

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

Tokenize String
h2o.tan

Compute the tangent of x
h2o.tabulate

Tabulation between Two Columns of an H2OFrame
h2o.totss

Get the total sum of squares.
h2o.trim

Trim Space
h2o.word2vec

Trains a word2vec model on a String column of an H2O data frame.
h2o.withinss

Get the Within SS
h2o.varimp_plot

Plot Variable Importances
h2o.varimp

Retrieve the variable importance.
h2o.unique

H2O Unique
h2o.trunc

trunc takes a single numeric argument x and returns a numeric vector containing the integers
h2o.weights

Retrieve the respective weight matrix
h2o.week

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

Which indices are TRUE?
h2o.var

Variance of a column or covariance of columns.
H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object
H2OModel-class

The H2OModel object.
h2o.year

Convert Milliseconds to Years in H2O Datasets
H2OConnection-class

The H2OConnection class.
Ops.H2OFrame

S3 Group Generic Functions for H2O
H2OModelMetrics-class

The H2OModelMetrics Object.
H2OGrid-class

H2O Grid
H2OModelFuture-class

H2O Future Model
H2OClusteringModel-class

The H2OClusteringModel object.
housevotes

United States Congressional Voting Records 1984
Logical-or

Logical or for H2OFrames
names.H2OFrame

Column names of an H2OFrame
is.numeric

Check if numeric
is.factor

Check if factor
iris

Edgar Anderson's Iris Data
is.character

Check if character
is.h2o

Is H2O Frame object
plot.H2OTabulate

Plot an H2O Tabulate Heatmap
ModelAccessors

Accessor Methods for H2OModel Object
plot.H2OModel

Plot an H2O Model
range.H2OFrame

Range of an H2O Column
use.package

Use optional package
summary,H2OModel-method

Print the Model Summary
print.H2OFrame

Print An H2OFrame
str.H2OFrame

Display the structure of an H2OFrame object
print.H2OTable

Print method for H2OTable objects
predict_leaf_node_assignment.H2OModel

Predict the Leaf Node Assignment on an H2O Model
summary,H2OGrid-method

Format grid object in user-friendly way
predict.H2OModel

Predict on an H2O Model
prostate

Prostate Cancer Study
walking

Muscular Actuations for Walking Subject
zzz

Shutdown H2O cloud after examples run