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h2o (version 3.22.1.1)

R Interface for 'H2O'

Description

R interface for 'H2O', the scalable open source machine learning platform that offers parallelized implementations of many supervised and unsupervised machine learning algorithms such as Generalized Linear Models, Gradient Boosting Machines (including XGBoost), Random Forests, Deep Neural Networks (Deep Learning), Stacked Ensembles, Naive Bayes, Cox Proportional Hazards, K-Means, PCA, Word2Vec, as well as a fully automatic machine learning algorithm (AutoML).

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Install

install.packages('h2o')

Monthly Downloads

8,212

Version

3.22.1.1

License

Apache License (== 2.0)

Issues

Pull Requests

Stars

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Repository

https://github.com/h2oai/h2o-3

Maintainer

Erin LeDell

Last Published

January 10th, 2019

Functions in h2o (3.22.1.1)

The H2ONode class.

The H2OModel object.

Return the cumulative min over a column or across a row

Returns the column names of an H2OFrame

H2OCoxPHModel-class

The H2OCoxPHModel object.

.skip_if_not_developer

H2O <-> R Communication and Utility Methods

Delete All H2O R Logs

Build a Deep Learning model using multiple native GPU backends

as.data.frame.H2OFrame

Converts parsed H2O data into an R data frame

Build an Aggregated Frame

Helper Collapse Function

H2OSplitNode-class

The H2OSplitNode class.

as.matrix.H2OFrame

Convert an H2OFrame to a matrix

S3 Group Generic Functions for H2O

as.character.H2OFrame

Convert an H2OFrame to a String

Convert H2O Data to Factors

h2o.aggregated_frame

Retrieve an aggregated frame from an Aggregator model

h2o.deeplearning

Build a Deep Neural Network model using CPUs

h2o.confusionMatrix

Access H2O Confusion Matrices

Administrative Endpoints

H2OLeafNode-class

The H2OLeafNode class.

Access H2O Gains/Lift Tables

Used to verify data, x, y and turn into the appropriate things

h2o.list_core_extensions

List registered core extensions

Return the cumulative max over a column or across a row

Convert H2O Data to Numeric

dimnames.H2OFrame

Column names of an H2OFrame

TODO: No objects in this file are being used. Either remove file or use objects.

h2o.getTimezone

Get the Time Zone on the H2O Cloud Returns a string

Perform a safe (i.e. error-checked) HTTP GET request to an H2O cluster.

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

.h2o.__LOGANDECHO

Log and Echo Endpoint

.h2o.doSafePOST

Perform a safe (i.e. error-checked) HTTP POST request to an H2O cluster.

Returns the Dimensions of an H2OFrame

Print An H2OFrame

h2o.deepwater.available

Determines whether Deep Water is available

h2o.scoreHistory

Retrieve Model Score History

Return the respective bias vector

Retrieve the Model Centers

Return coefficients fitted on the standardized data (requires standardize = True, which is on by default). These coefficients can be used to evaluate variable importance.

Convert H2O Data to Numerics

h2o.computeGram

Compute weighted gram matrix.

.h2o.__W2V_SYNONYMS

Word2Vec Endpoints

H2OModelMetrics-class

The H2OModelMetrics Object.

h2o.download_pojo

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

Initialize and Connect to H2O

h2o.centroid_stats

Retrieve centroid statistics

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

h2o.downloadCSV

Download H2O Data to Disk

The H2O Package Environment

Retrieve the Model Centers STD

h2o.createFrame

Data H2OFrame Creation in H2O

.h2o.is_progress

Check if Progress Bar is Enabled

Compute the cosine of x

H2O Apply Conditional Statement

h2o.getFutureModel

Get future model

.h2o.__MODEL_METRICS

Model Metrics Endpoint

Retrieve the Log Loss Value

Convert Milliseconds to Day of Month in H2O Datasets

Perform a low-level HTTP GET operation on an H2O instance

H2OModelFuture-class

H2O Future Model

H2O R Interface

Compute the hyperbolic cosine of x

Cut H2O Numeric Data to Factor

.h2o.__CREATE_FRAME

H2OFrame Manipulation

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

Tabulation between Two Columns of an H2OFrame

h2o.mean_residual_deviance

Retrieve the Mean Residual Deviance value

Convert between character representations and objects of Date class

Removal Endpoints

h2o.deepfeatures

Feature Generation via H2O Deep Learning or DeepWater Model

The H2OTree class.

h2o.getModelTree

Fetchces a single tree of a H2O model. This function is intended to be used on Gradient Boosting Machine models or Distributed Random Forest models.

H2OConnection-class

The H2OConnection class.

Return the Head or Tail of an H2O Dataset.

h2o.download_mojo

Download the model in MOJO format.

Convert Milliseconds to Hour of Day in H2O Datasets

Return the levels from the column requested column.

Compute element-wise string distances between two H2OFrames

String Global Substitute

Logical or for H2OFrames

Kurtosis of a column

H2OAutoML-class

The H2OAutoML class

Shannon entropy

Scaling and Centering of an H2OFrame

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

Group and Apply by Column

Retrieve the pr_auc

Principal component analysis of an H2O data frame

Build gradient boosted classification or regression trees

Merge Two H2O Data Frames

h2o.cross_validation_models

Retrieve the cross-validation models

h2o.networkTest

View Network Traffic Speed

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

Sorts an H2O frame by columns

Dump the stack into the JVM's stdout.

H2O Grid Support

Import/Export Endpoints

as.vector.H2OFrame

Convert an H2OFrame to a vector

Performs k-means clustering on an H2O dataset

h2o.listTimezones

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

h2o.insertMissingValues

Insert Missing Values into an H2OFrame

H2O Data Parsing

Display the structure of an H2OFrame object

.h2o.primitives

Map of operations known to H2O

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

Australia Coastal Data

Compute the log1p of x

Apply on H2O Datasets

H2OConnectionMutableState

The H2OConnectionMutableState class

Compute the log10 of x

H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object

H2O Model Metric Accessor Functions

Column names of an H2OFrame

H2OCoxPHModelSummary-class

The H2OCoxPHModelSummary object.

Replicate Elements of Vectors or Lists into H2O

Logical and for H2OFrames

.h2o.__MODEL_BUILDERS

Model Builder Endpoint Generator

H2OClusteringModel-class

The H2OClusteringModel object.

Return the number of columns present in x.

h2o.list_all_extensions

List all H2O registered extensions

The H2OFrame class

Combine H2O Datasets by Columns

List Keys on an H2O Cluster

Rapids Endpoint

View H2O R Logs

Retrieve the Akaike information criterion (AIC) value

Compute the tangent of x

Get the number of factor levels for this frame.

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

Perform a low-level HTTP POST operation on an H2O instance

Retrieves Mean Squared Error Value

.h2o.__EXPORT_FILES

Export Files Endpoint Generator

Split an H2O Data Set

h2o.cross_validation_fold_assignment

Retrieve the cross-validation fold assignment

h2o.residual_deviance

Retrieve the residual deviance

.h2o.__checkConnectionHealth

Check H2O Server Health

Accessor Methods for H2OModel Object

Just like doRawPOST but fills in the default h2oRestApiVersion if none is provided

Quantiles of H2O Frames.

Retrieve the R2 value

Skewness of a column

summary,H2OGrid-method

Format grid object in user-friendly way

h2o.stopLogging

Stop Writing H2O R Logs

h2o.clusterStatus

Return the status of the cluster

Convert Milliseconds to Week of Week Year in H2O Datasets

Inspect/Summary Endpoints

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

Muscular Actuations for Walking Subject

h2o.clusterInfo

Print H2O cluster info

Print An H2OFrame

.h2o.__DECRYPTION_SETUP

Decryption Endpoints

Compute DCT of an H2OFrame

Retrieve the AUC

Summarizes the columns of an H2OFrame.

Convert Milliseconds to Day of Week in H2O Datasets

generate_col_ind

CHeck to see if the column names/indices entered is valid for the dataframe given. This is an internal function

Retrieve the GINI Coefficcient

.h2o.__REST_API_VERSION

H2O Package Constants

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

.h2o.__ALL_CAPABILITIES

Capabilities endpoints

Save an H2O Model Object as Mojo to Disk

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

Check if factor

Locate a file given the pattern <bucket>/<path/to/file> e.g. h2o:::.h2o.locate("smalldata/iris/iris22.csv") returns the absolute path to iris22.csv

Compute the absolute value of x

h2o.filterNACols

Filter NA Columns

Column names of an H2OFrame

Anomaly Detection via H2O Deep Learning Model

Compute the arc cosine of x

Starting H2O For examples

h2o.list_api_extensions

List registered API extensions

h2o.varimp_plot

Plot Variable Importances

Check H2OFrame columns for factors

Shutdown H2O cloud after examples run

Convert H2O Data to Factors

Plot an H2O Model

Get the Within SS

Automatic Machine Learning

h2o.clusterIsUp

Determine if an H2O cluster is up or not

h2o.getConnection

Retrieve an H2O Connection

Rename an H2O object.

h2o.ascharacter

Convert H2O Data to Characters

h2o.isolationForest

Trains an Isolation Forest model

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

h2o.cross_validation_holdout_predictions

Retrieve the cross-validation holdout predictions

Is H2O Frame object

Print method for H2OTable objects

Get the between cluster sum of squares

Create H2OFrame

h2o.no_progress

Disable Progress Bar

Split H2O Dataset, Apply Function, and Return Results

Correlation of columns.

Get an R object that is a subclass of '>H2OAutoML

Connect to a running H2O instance.

h2o.cross_validation_predictions

Retrieve the cross-validation predictions

h2o.columns_by_type

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

Get an R reference to an H2O model

Return the cumulative product over a column or across a row

.h2o.__PARSE_SETUP

Parse Endpoints

Get the types-per-column

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

h2o.cluster_sizes

Retrieve the cluster sizes

Fit a generalized linear model

Compute the logarithm of x

h2o.decryptionSetup

Setup a Decryption Tool

Return the cumulative sum over a column or across a row

h2o.target_encode_apply

Apply Target Encoding Map to Frame

Import Files into H2O

Conduct a lag 1 transform on a numeric H2OFrame column

h2o.find_row_by_threshold

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

h2o.ischaracter

Check if character

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

Just like doRawGET but fills in the default h2oRestApiVersion if none is provided

Check if numeric

Get a parse setup back for the staged data.

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

Export a Model to HDFS

h2o.findSynonyms

Find synonyms using a word2vec model.

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

Compute naive Bayes probabilities on an H2O dataset.

h2o.import_sql_select

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

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

Compute the exponential function of x

Remove All Objects on the H2O Cluster

staged_predict_proba.H2OModel

Predict class probabilities at each stage of an H2O Model

Return column names of an H2OFrame

h2o.interaction

Categorical Interaction Feature Creation in H2O

h2o.make_metrics

Create Model Metrics from predicted and actual values in H2O

Remove Rows With NAs

h2o.downloadAllLogs

Download H2O Log Files to Disk

Set Levels of H2O Factor Column

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

h2o.mean_per_class_error

Retrieve the mean per class error

Generalized low rank decomposition of an H2O data frame

h2o.hit_ratio_table

Retrieve the Hit Ratios

h2o.kfold_column

Produce a k-fold column vector.

Display the structure of an H2OFrame object

h2o.find_threshold_by_max_metric

Find the threshold, give the max metric

H2O Description of A Dataset

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

Save an H2O Model Object to Disk

Get the total sum of squares.

h2o.mojo_predict_csv

H2O Prediction from R without having H2O running

Strip set from left

Log a message on the server-side logs

Compute the log2 of x

Get h2o version

Search for matches to an argument pattern

h2o.getGLMFullRegularizationPath

Extract full regularization path from a GLM model

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

h2o.import_sql_table

Import SQL Table into H2O

Compute A Histogram

h2o.makeGLMModel

Set betas of an existing H2O GLM Model

Check Client Mode Connection

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

Convert Milliseconds to Months in H2O Datasets

h2o.num_valid_substrings

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

Check if factor

h2o.predict_json

H2O Prediction from R without having H2O running

Basic Imputation of H2O Vectors

h2o.num_iterations

Retrieve the number of iterations.

Load H2O Model from HDFS or Local Disk

Returns the minima of the input values.

h2o.null_deviance

Retrieve the null deviance

Count of NAs per column

h2o.partialPlot

Partial Dependence Plots

h2o.proj_archetypes

Convert Archetypes to Features from H2O GLRM Model

h2o.xgboost.available

Determines whether an XGBoost model can be built

Retrieve the null degrees of freedom

h2o.mojo_predict_df

H2O Prediction from R without having H2O running

Shut Down H2O Instance

Standard Deviation of a column of data.

h2o.residual_dof

Retrieve the residual degrees of freedom

Value Matching in H2O

Edgar Anderson's Iris Data

Compute the hyperbolic tangent of x

h2o.rank_within_group_by

This function will add a new column rank where the ranking is produced as follows: 1. sorts the H2OFrame by columns sorted in by columns specified in group_by_cols and sort_cols in the directions specified by the ascending for the sort_cols. The sort directions for the group_by_cols are ascending only. 2. A new rank column is added to the frame which will contain a rank assignment performed next. The user can choose to assign a name to this new column. The default name is New_Rank_column. 3. For each groupby groups, a rank is assigned to the row starting from 1, 2, ... to the end of that group. 4. If sort_cols_sorted is TRUE, a final sort on the frame will be performed frame according to the sort_cols and the sort directions in ascending. If sort_cols_sorted is FALSE (by default), the frame from step 3 will be returned as is with no extra sort. This may provide a small speedup if desired.

predict.H2OModel

Predict on an H2O Model

Returns the maxima of the input values.

Retrieve the variable importance.

h2o.show_progress

Enable Progress Bar

Column names of an H2OFrame

h2o.performance

Model Performance Metrics in H2O

Retrieve the Mean Absolute Error Value

h2o.setTimezone

Set the Time Zone on the H2O Cloud

h2o.reconstruct

Reconstruct Training Data via H2O GLRM Model

h2o.stackedEnsemble

Builds a Stacked Ensemble

h2o.startLogging

Start Writing H2O R Logs

Compute msec since the Unix Epoch

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

Combine H2O Datasets by Rows

h2o.saveModelDetails

Save an H2O Model Details

Tokenize String

h2o.target_encode_create

Create Target Encoding Map

Delete Objects In H2O

Strip set from right

Compute the sine of x

Compute the square root of x

Return the number of rows present in x.

Produce a Vector of Random Uniform Numbers

String Substitute

United States Congressional Voting Records 1984

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

Convert a word2vec model into an H2OFrame

predict_leaf_node_assignment.H2OModel

Predict the Leaf Node Assignment on an H2O Model

Which indice contains the max value?

Convert strings to lowercase

Variance of a column or covariance of columns.

h2o.std_coef_plot

Plot Standardized Coefficient Magnitudes

Retrieve the respective weight matrix

Which indices are TRUE?

Cross Tabulation and Table Creation in H2O

Convert Milliseconds to Years in H2O Datasets

Convert strings to uppercase

predict.H2OAutoML

Predict on an AutoML object

h2o.tot_withinss

Get the total within cluster sum of squares.

Which index contains the min value?

length,H2OTree-method

Overrides the behavior of length() function on H2OTree class. Returns number of nodes in an H2OTree

Prostate Cancer Study

Check if numeric

Range of an H2O Column

h2o.randomForest

Build a Random Forest model

Build an eXtreme Gradient Boosting model

Delete Columns from an H2OFrame

Retrieves Root Mean Squared Error Value

Use optional package

summary,H2OModel-method

Print the Model Summary

summary,H2OCoxPHModel-method

Summary method for H2OCoxPHModel objects

Check if character

Retrieve the Root Mean Squared Log Error

Retrieve the standard deviations of principal components

Truncate values in x toward 0

plot.H2OTabulate

Plot an H2O Tabulate Heatmap