Reference

apply

Apply on H2O Datasets

as.character

Convert an H2OFrame to a String

as.data.frame

Converts parsed H2O data into an R data frame

as.factor

Convert H2O Data to Factors

as.h2o

Create H2OFrame

as.matrix

Convert an H2OFrame to a matrix

as.numeric

Convert H2O Data to Numeric

as.vector

Convert an H2OFrame to a vector

australia

Australia Coastal Data

colnames

Returns the column names of an H2OFrame

dim

Returns the Dimensions of an H2OFrame

dimnames

Column names of an H2OFrame

h2o.abs

Compute the absolute value of x

h2o.acos

Compute the arc cosine of x

h2o.aggregated_frame

Retrieve an aggregated frame from an Aggregator model

h2o.aggregator

Build an Aggregated Frame

h2o.aic

Retrieve the Akaike information criterion (AIC) value

h2o.all

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

h2o.anomaly

Anomaly Detection via H2O Deep Learning Model

h2o.any

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

h2o.anyFactor

Check H2OFrame columns for factors

h2o.arrange

Sorts an H2O frame by columns

h2o.as_date

Convert between character representations and objects of Date class

h2o.ascharacter

Convert H2O Data to Characters

h2o.asfactor

Convert H2O Data to Factors

h2o.asnumeric

Convert H2O Data to Numerics

h2o.assign

Rename an H2O object.

h2o.auc

Retrieve the AUC

h2o.automl

Automatic Machine Learning

h2o.betweenss

Get the between cluster sum of squares

h2o.biases

Return the respective bias vector

h2o.bottomN

H2O bottomN

h2o.cbind

Combine H2O Datasets by Columns

h2o.ceiling

Take a single numeric argument and return a numeric vector with the smallest integers

h2o.centers

Retrieve the Model Centers

h2o.centersSTD

Retrieve the Model Centers STD

h2o.centroid_stats

Retrieve centroid statistics

h2o.clearLog

Delete All H2O R Logs

h2o.cluster_sizes

Retrieve the cluster sizes

h2o.clusterInfo

Print H2O cluster info

h2o.clusterIsUp

Determine if an H2O cluster is up or not

h2o.clusterStatus

Return the status of the cluster

h2o.coef

Return the coefficients that can be applied to the non-standardized data.

h2o.colnames

Return column names of an H2OFrame

h2o.columns_by_type

Obtain a list of columns that are specified by `coltype`

h2o.computeGram

Compute weighted gram matrix.

h2o.confusionMatrix

Access H2O Confusion Matrices

h2o.connect

Connect to a running H2O instance.

h2o.cor cor

Correlation of columns.

h2o.cos

Compute the cosine of x

h2o.cosh

Compute the hyperbolic cosine of x

h2o.coxph

Trains a Cox Proportional Hazards Model (CoxPH) on an H2O dataset

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.cross_validation_predictions

Retrieve the cross-validation predictions

h2o.cummax

Return the cumulative max over a column or across a row

h2o.cummin

Return the cumulative min over a column or across a row

h2o.cumprod

Return the cumulative product over a column or across a row

h2o.cumsum

Return the cumulative sum over a column or across a row

h2o.cut cut

Cut H2O Numeric Data to Factor

h2o.day day

Convert Milliseconds to Day of Month in H2O Datasets

h2o.dayOfWeek dayOfWeek

Convert Milliseconds to Day of Week in H2O Datasets

h2o.dct

Compute DCT of an H2OFrame

h2o.ddply

Split H2O Dataset, Apply Function, and Return Results

h2o.decryptionSetup

Setup a Decryption Tool

h2o.deepfeatures

Feature Generation via H2O Deep Learning or DeepWater Model

h2o.deeplearning

Build a Deep Neural Network model using CPUs

h2o.deepwater.available

Determines whether Deep Water is available

h2o.deepwater

Build a Deep Learning model using multiple native GPU backends

h2o.describe

H2O Description of A Dataset

h2o.difflag1

Conduct a lag 1 transform on a numeric H2OFrame column

h2o.dim

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

h2o.dimnames

Column names of an H2OFrame

h2o.distance

Compute a pairwise distance measure between all rows of two numeric H2OFrames.

h2o.download_mojo

Download the model in MOJO format.

h2o.download_pojo

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

h2o.downloadAllLogs

Download H2O Log Files to Disk

h2o.downloadCSV

Download H2O Data to Disk

h2o.entropy

Shannon entropy

h2o.exp

Compute the exponential function of x

h2o.exportFile

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

h2o.exportHDFS

Export a Model to HDFS

h2o.fillna

fillNA

h2o.filterNACols

Filter NA Columns

h2o.find_row_by_threshold

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

h2o.find_threshold_by_max_metric

Find the threshold, give the max metric

h2o.findSynonyms

Find synonyms using a word2vec model.

h2o.floor

Take a single numeric argument and return a numeric vector with the largest integers

h2o.flow

Open H2O Flow

h2o.gainsLift

Access H2O Gains/Lift Tables

h2o.gbm

Build gradient boosted classification or regression trees

h2o.getConnection

Retrieve an H2O Connection

h2o.getFrame

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

h2o.getFutureModel

Get future model

h2o.getGLMFullRegularizationPath

Extract full regularization path from a GLM model

h2o.getGrid

Get a grid object from H2O distributed K/V store.

h2o.getId

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

h2o.getModel

Get an R reference to an H2O model

h2o.getTimezone

Get the Time Zone on the H2O Cloud Returns a string

h2o.getTypes

Get the types-per-column

h2o.getVersion

Get h2o version

h2o.giniCoef

Retrieve the GINI Coefficcient

h2o.glm

Fit a generalized linear model

h2o.glrm

Generalized low rank decomposition of an H2O data frame

h2o.grep

Search for matches to an argument pattern

h2o.grid

H2O Grid Support

h2o.group_by

Group and Apply by Column

h2o.gsub

String Global Substitute

h2o.head head h2o.tail tail

Return the Head or Tail of an H2O Dataset.

h2o.hist

Compute A Histogram

h2o.hit_ratio_table

Retrieve the Hit Ratios

h2o.hour hour

Convert Milliseconds to Hour of Day in H2O Datasets

h2o.ifelse ifelse

H2O Apply Conditional Statement

h2o.import_sql_select

Import SQL table that is result of SELECT SQL query into H2O

h2o.importFile h2o.importFolder h2o.importHDFS h2o.uploadFile

Import Files into H2O

h2o.impute

Basic Imputation of H2O Vectors

h2o.insertMissingValues

Insert Missing Values into an H2OFrame

h2o.interaction

Categorical Interaction Feature Creation in H2O

h2o.is_client

Check Client Mode Connection

h2o.isax

iSAX

h2o.ischaracter

Check if character

h2o.isfactor

Check if factor

h2o.isnumeric

Check if numeric

h2o.kfold_column

Produce a k-fold column vector.

h2o.killMinus3

Dump the stack into the JVM's stdout.

h2o.kmeans

Performs k-means clustering on an H2O dataset

h2o.kurtosis kurtosis.H2OFrame

Kurtosis of a column

h2o.levels

Return the levels from the column requested column.

h2o.list_all_extensions

List all H2O registered extensions

h2o.list_api_extensions

List registered API extensions

h2o.list_core_extensions

List registered core extensions

h2o.listTimezones

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

h2o.loadModel

Load H2O Model from HDFS or Local Disk

h2o.log

Compute the logarithm of x

h2o.log1p

Compute the log1p of x

h2o.log2

Compute the log2 of x

h2o.log10

Compute the log10 of x

h2o.logAndEcho

Log a message on the server-side logs

h2o.logloss

Retrieve the Log Loss Value

h2o.ls

List Keys on an H2O Cluster

h2o.lstrip

Strip set from left

h2o.mae

Retrieve the Mean Absolute Error Value

h2o.make_metrics

Create Model Metrics from predicted and actual values in H2O

h2o.makeGLMModel

Set betas of an existing H2O GLM Model

h2o.match match.H2OFrame %in%

Value Matching in H2O

h2o.max

Returns the maxima of the input values.

h2o.mean_per_class_error

Retrieve the mean per class error

h2o.mean_residual_deviance

Retrieve the Mean Residual Deviance value

h2o.mean mean

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

h2o.median median

H2O Median

h2o.merge

Merge Two H2O Data Frames

h2o.metric h2o.F0point5 h2o.F1 h2o.F2 h2o.accuracy h2o.error h2o.maxPerClassError h2o.mean_per_class_accuracy h2o.mcc h2o.precision h2o.tpr h2o.fpr h2o.fnr h2o.tnr h2o.recall h2o.sensitivity h2o.fallout h2o.missrate h2o.specificity

H2O Model Metric Accessor Functions

h2o.min

Returns the minima of the input values.

h2o.mktime

Compute msec since the Unix Epoch

h2o.month month

Convert Milliseconds to Months in H2O Datasets

h2o.mse

Retrieves Mean Squared Error Value

h2o.na_omit

Remove Rows With NAs

h2o.nacnt

Count of NAs per column

h2o.naiveBayes

Compute naive Bayes probabilities on an H2O dataset.

h2o.names

Column names of an H2OFrame

h2o.nchar

String length

h2o.ncol

Return the number of columns present in x.

h2o.networkTest

View Network Traffic Speed

h2o.nlevels

Get the number of factor levels for this frame.

h2o.no_progress

Disable Progress Bar

h2o.nrow

Return the number of rows present in x.

h2o.null_deviance

Retrieve the null deviance

h2o.null_dof

Retrieve the null degrees of freedom

h2o.num_iterations

Retrieve the number of iterations.

h2o.num_valid_substrings

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

h2o.openLog

View H2O R Logs

h2o.parseRaw

H2O Data Parsing

h2o.parseSetup

Get a parse setup back for the staged data.

h2o.partialPlot

Partial Dependence Plots

h2o.performance

Model Performance Metrics in H2O

h2o.pivot

Pivot a frame

h2o.prcomp

Principal component analysis of an H2O data frame

h2o.predict_json

H2O Prediction from R without having H2O running

h2o.print

Print An H2OFrame

h2o.prod

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

h2o.proj_archetypes

Convert Archetypes to Features from H2O GLRM Model

h2o.quantile quantile

Quantiles of H2O Frames.

h2o.r2

Retrieve the R2 value

h2o.randomForest

Build a Random Forest model

h2o.range

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

h2o.rbind

Combine H2O Datasets by Rows

h2o.reconstruct

Reconstruct Training Data via H2O GLRM Model

h2o.relevel

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

h2o.removeAll

Remove All Objects on the H2O Cluster

h2o.removeVecs

Delete Columns from an H2OFrame

h2o.rep_len

Replicate Elements of Vectors or Lists into H2O

h2o.residual_deviance

Retrieve the residual deviance

h2o.residual_dof

Retrieve the residual degrees of freedom

h2o.rm

Delete Objects In H2O

h2o.rmse

Retrieves Root Mean Squared Error Value

h2o.rmsle

Retrieve the Root Mean Squared Log Error

h2o.round round

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

h2o.rstrip

Strip set from right

h2o.runif

Produce a Vector of Random Uniform Numbers

h2o.saveModel

Save an H2O Model Object to Disk

h2o.saveModelDetails

Save an H2O Model Details

h2o.saveMojo

Save an H2O Model Object as Mojo to Disk

h2o.scale scale

Scaling and Centering of an H2OFrame

h2o.scoreHistory

Retrieve Model Score History

h2o.sd sd

Standard Deviation of a column of data.

h2o.sdev

Retrieve the standard deviations of principal components

h2o.setLevels

Set Levels of H2O Factor Column

h2o.setTimezone

Set the Time Zone on the H2O Cloud

h2o.show_progress

Enable Progress Bar

h2o.shutdown

Shut Down H2O Instance

h2o.signif signif

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

h2o.sin

Compute the sine of x

h2o.skewness skewness.H2OFrame

Skewness of a column

h2o.splitFrame

Split an H2O Data Set

h2o.sqrt

Compute the square root of x

h2o.stackedEnsemble

Builds a Stacked Ensemble

h2o.startLogging

Start Writing H2O R Logs

h2o.std_coef_plot

Plot Standardized Coefficient Magnitudes

h2o.stopLogging

Stop Writing H2O R Logs

h2o.str

Display the structure of an H2OFrame object

h2o.stringdist

Compute element-wise string distances between two H2OFrames

h2o.strsplit

String Split

h2o.sub

String Substitute

h2o.substring h2o.substr

Substring

h2o.sum

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

h2o.summary summary

Summarizes the columns of an H2OFrame.

h2o.svd

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

h2o.table table.H2OFrame

Cross Tabulation and Table Creation in H2O

h2o.tabulate

Tabulation between Two Columns of an H2OFrame

h2o.tan

Compute the tangent of x

h2o.tanh

Compute the hyperbolic tangent of x

h2o.toFrame

Convert a word2vec model into an H2OFrame

h2o.tokenize

Tokenize String

h2o.tolower

Convert strings to lowercase

h2o.topN

H2O topN

h2o.tot_withinss

Get the total within cluster sum of squares.

h2o.totss

Get the total sum of squares.

h2o.toupper

Convert strings to uppercase

h2o.transform

Transform words (or sequences of words) to vectors using a word2vec model.

h2o.trim

Trim Space

h2o.trunc

Truncate values in x toward 0

h2o.unique

H2O Unique

h2o.var var

Variance of a column or covariance of columns.

h2o.varimp_plot

Plot Variable Importances

h2o.varimp

Retrieve the variable importance.

h2o.week week

Convert Milliseconds to Week of Week Year in H2O Datasets

h2o.weights

Retrieve the respective weight matrix

h2o.which_max which.max.H2OFrame which.min.H2OFrame

Which indice contains the max value?

h2o.which_min

Which index contains the min value?

h2o.which

Which indices are TRUE?

h2o.withinss

Get the Within SS

h2o.word2vec

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

h2o.xgboost.available

Determines whether an XGBoost model can be built

h2o.xgboost

Build an eXtreme Gradient Boosting model

h2o.year year

Convert Milliseconds to Years in H2O Datasets

H2OAutoML-class

The H2OAutoML class

H2OClusteringModel-class

The H2OClusteringModel object.

show

The H2OConnection class.

H2OConnectionMutableState

The H2OConnectionMutableState class

H2OFrame-class

The H2OFrame class

H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object

show

H2O Grid

show

The H2OModel object.

H2OModelFuture-class

H2O Future Model

show

The H2OModelMetrics Object.

housevotes

United States Congressional Voting Records 1984

iris

Edgar Anderson's Iris Data

is.character

Check if character

is.factor

Check if factor

is.h2o

Is H2O Frame object

is.numeric

Check if numeric

||

Logical or for H2OFrames

getParms getCenters getCentersStd getWithinSS getTotWithinSS getBetweenSS getTotSS getIterations getClusterSizes

Accessor Methods for H2OModel Object

names

Column names of an H2OFrame

plot

Plot an H2O Model

plot

Plot an H2O Tabulate Heatmap

predict

Predict on an AutoML object

predict h2o.predict

Predict on an H2O Model

predict_leaf_node_assignment.H2OModel h2o.predict_leaf_node_assignment

Predict the Leaf Node Assignment on an H2O Model

print

Print An H2OFrame

print

Print method for H2OTable objects

prostate

Prostate Cancer Study

range

Range of an H2O Column

str

Display the structure of an H2OFrame object

summary

Format grid object in user-friendly way

summary

Print the Model Summary

use.package

Use optional package

walking

Muscular Actuations for Walking Subject