Learn R Programming

⚠️There's a newer version (3.44.0.3) of this package.Take me there.

h2o (version 3.28.0.4)

R Interface for the 'H2O' Scalable Machine Learning Platform

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).

Copy Link

Version

Install

install.packages('h2o')

Monthly Downloads

10,107

Version

3.28.0.4

License

Apache License (== 2.0)

Issues

Pull Requests

Stars

Forks

Repository

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

Maintainer

Erin LeDell

Last Published

February 26th, 2020

Functions in h2o (3.28.0.4)

H2OCoxPHModelSummary-class

The H2OCoxPHModelSummary object.

H2OClusteringModel-class

The H2OClusteringModel object.

The H2OFrame class

H2OAutoML-class

The H2OAutoML class

H2OCoxPHModel-class

The H2OCoxPHModel object.

H2OConnectionMutableState

The H2OConnectionMutableState class

S3 Group Generic Functions for H2O

H2OConnection-class

The H2OConnection class.

H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object

Logical or for H2OFrames

H2OModelFuture-class

H2O Future Model

The H2OModel object.

H2OLeafNode-class

The H2OLeafNode class.

as.data.frame.H2OFrame

Converts parsed H2O data into an R data frame

Convert H2O Data to Factors

Accessor Methods for H2OModel Object

H2OSplitNode-class

The H2OSplitNode class.

The H2ONode class.

Starting H2O For examples

H2OModelMetrics-class

The H2OModelMetrics Object.

Logical and for H2OFrames

Apply on H2O Datasets

as.matrix.H2OFrame

Convert an H2OFrame to a matrix

Create H2OFrame

Returns the Dimensions of an H2OFrame

as.character.H2OFrame

Convert an H2OFrame to a String

.h2o.__PARSE_SETUP

Parse Endpoints

Rapids Endpoint

.h2o.__DECRYPTION_SETUP

Decryption Endpoints

Helper Collapse Function

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

dimnames.H2OFrame

Column names of an H2OFrame

.h2o.__CREATE_FRAME

H2OFrame Manipulation

.h2o.__checkConnectionHealth

Check H2O Server Health

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

Import/Export Endpoints

.h2o.__MODEL_BUILDERS

Model Builder Endpoint Generator

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

The H2OTree class.

Removal Endpoints

.h2o.__EXPORT_FILES

Export Files Endpoint Generator

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

Inspect/Summary Endpoints

.h2o.__ALL_CAPABILITIES

Capabilities endpoints

Virtual Keyed class

Convert H2O Data to Numeric

as.vector.H2OFrame

Convert an H2OFrame to a vector

The H2O Package Environment

Administrative Endpoints

.skip_if_not_developer

H2O <-> R Communication and Utility Methods

.h2o.__REST_API_VERSION

H2O Package Constants

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

.h2o.__W2V_SYNONYMS

Word2Vec Endpoints

Australia Coastal Data

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

Returns the column names of an H2OFrame

.h2o.primitives

Map of operations known to H2O

feature_frequencies.H2OModel

Retrieve the number of occurrences of each feature for given observations Available for GBM, Random Forest and Isolation Forest models.

.h2o.__LOGANDECHO

Log and Echo Endpoint

.h2o.doSafePOST

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

Check H2OFrame columns for factors

Sorts an H2O frame by columns

.h2o.__MODEL_METRICS

Model Metrics Endpoint

Retrieve the Akaike information criterion (AIC) value

Get the between cluster sum of squares

Return the respective bias vector

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

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

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

Anomaly Detection via H2O Deep Learning Model

.h2o.is_progress

Check if Progress Bar is Enabled

get_seed.H2OModel

Get the seed from H2OModel which was used during training. If a user does not set the seed parameter before training, the seed is autogenerated. It returns seed as the string if the value is bigger than the integer. For example, an autogenerated seed is always long so that the seed in R is a string.

Compute the arc cosine of x

Compute the absolute value of x

generate_col_ind

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

H2O R Interface

Convert H2O Data to Factors

Retrieve the AUCPR (Area Under Precision Recall Curve)

Automatic Machine Learning

Convert H2O Data to Numerics

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

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

Retrieve the Model Centers

Retrieve the Model Centers STD

h2o.HGLMMetrics

Retrieve HGLM ModelMetrics

h2o.cluster_sizes

Retrieve the cluster sizes

h2o.confusionMatrix

Access H2O Confusion Matrices

h2o.centroid_stats

Retrieve centroid statistics

Connect to a running H2O instance.

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

h2o.cross_validation_predictions

Retrieve the cross-validation predictions

h2o.clusterStatus

Return the status of the cluster

h2o.clusterIsUp

Determine if an H2O cluster is up or not

Return the cumulative max over a column or across a row

Build an Aggregated Frame

h2o.aggregated_frame

Retrieve an aggregated frame from an Aggregator model

Rename an H2O object.

Correlation of columns.

Retrieve the AUC

Compute the cosine of x

Delete All H2O R Logs

h2o.clusterInfo

Print H2O cluster info

Convert between character representations and objects of Date class

h2o.ascharacter

Convert H2O Data to Characters

Combine H2O Datasets by Columns

h2o.computeGram

Compute weighted gram matrix.

h2o.columns_by_type

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

Compute the hyperbolic cosine of x

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

Return column names of an H2OFrame

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

Compute DCT of an H2OFrame

h2o.createFrame

Data H2OFrame Creation in H2O

h2o.cross_validation_fold_assignment

Retrieve the cross-validation fold assignment

Convert Milliseconds to Day of Month in H2O Datasets

H2O Description of A Dataset

Split H2O Dataset, Apply Function, and Return Results

h2o.deepwater.available

Determines whether Deep Water is available

Convert Milliseconds to Day of Week in H2O Datasets

h2o.downloadAllLogs

Download H2O Log Files to Disk

h2o.downloadCSV

Download H2O Data to Disk

Return the cumulative min over a column or across a row

Return the cumulative sum over a column or across a row

h2o.cross_validation_holdout_predictions

Retrieve the cross-validation holdout predictions

h2o.cross_validation_models

Retrieve the cross-validation models

Return the cumulative product over a column or across a row

h2o.deeplearning

Build a Deep Neural Network model using CPUs

Build a Deep Learning model using multiple native GPU backends

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

Column names of an H2OFrame

Shannon entropy

h2o.download_pojo

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

h2o.find_row_by_threshold

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

h2o.findSynonyms

Find synonyms using a word2vec model.

h2o.filterNACols

Filter NA Columns

h2o.find_threshold_by_max_metric

Find the threshold, give the max metric

Cut H2O Numeric Data to Factor

Imports a generic model into H2O. Such model can be used then used for scoring and obtaining additional information about the model. The imported model has to be supported by H2O.

h2o.getConnection

Retrieve an H2O Connection

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

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

Conduct a lag 1 transform on a numeric H2OFrame column

h2o.genericModel

Imports a model under given path, creating a Generic model with it.

Export a Model to HDFS

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

Access H2O Gains/Lift Tables

Build gradient boosted classification or regression trees

h2o.deepfeatures

Feature Generation via H2O Deep Learning or DeepWater Model

h2o.download_model

Download the model in binary format.

h2o.decryptionSetup

Setup a Decryption Tool

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

Get h2o version

h2o.download_mojo

Download the model in MOJO format.

Compute the exponential function of x

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

Retrieve the GINI Coefficcient

h2o.get_ntrees_actual

Retrieve actual number of trees for tree algorithms

Get the types-per-column

h2o.getTimezone

Get the Time Zone on the H2O cluster Returns a string

h2o.get_leaderboard

Retrieve the leaderboard from the AutoML instance.

Initialize and Connect to H2O

Get an R reference to an H2O model

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.

Generalized low rank decomposition of an H2O data frame

H2O Grid Support

Fit a generalized linear model

Return the levels from the column requested column.

h2o.interaction

Categorical Interaction Feature Creation in H2O

h2o.getFutureModel

Get future model

Group and Apply by Column

h2o.insertMissingValues

Insert Missing Values into an H2OFrame

h2o.getGLMFullRegularizationPath

Extract full regularization path from a GLM model

h2o.listTimezones

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

Search for matches to an argument pattern

Compute the log1p of x

Check Client Mode Connection

h2o.make_metrics

Create Model Metrics from predicted and actual values in H2O

h2o.import_sql_select

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

Compute the logarithm of x

h2o.import_mojo

Imports a MOJO under given path, creating a Generic model with it.

H2O Apply Conditional Statement

h2o.ischaracter

Check if character

Return the Head or Tail of an H2O Dataset.

String Global Substitute

Tokenize String

Compute the log2 of x

Import Files into H2O

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

Converts a frame to key-value representation while optionally skipping NA values. Inverse operation to h2o.pivot.

Value Matching in H2O

Load H2O Model from HDFS or Local Disk

Loads previously saved grid with all it's models from the same folder

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

Retrieve the Root Mean Squared Log Error

Convert Milliseconds to Hour of Day in H2O Datasets

h2o.null_deviance

Retrieve the null deviance

Combine H2O Datasets by Rows

h2o.mojo_predict_csv

H2O Prediction from R without having H2O running

H2O Data Parsing

h2o.mojo_predict_df

H2O Prediction from R without having H2O running

h2o.saveModelDetails

Save an H2O Model Details

Compute A Histogram

h2o.import_hive_table

Import Hive Table into H2O

Compute the log10 of x

Kurtosis of a column

Dump the stack into the JVM's stdout.

h2o.hit_ratio_table

Retrieve the Hit Ratios

Retrieve the null degrees of freedom

h2o.reconstruct

Reconstruct Training Data via H2O GLRM Model

Split an H2O Data Set

View H2O R Logs

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

Retrieve per-variable split information for a given Isolation Forest model. Output will include: - count - The number of times a variable was used to make a split. - aggregated_split_ratios - The split ratio is defined as "abs(#left_observations - #right_observations) / #before_split". Even splits (#left_observations approx the same as #right_observations) contribute less to the total aggregated split ratio value for the given feature; highly imbalanced splits (eg. #left_observations >> #right_observations) contribute more. - aggregated_split_depths - The sum of all depths of a variable used to make a split. (If a variable is used on level N of a tree, then it contributes with N to the total aggregate.)

Remove All Objects on the H2O Cluster

Which indices are TRUE?

String Substitute

Compute the square root of x

Save an H2O Model Object as Mojo to Disk

Convert strings to lowercase

h2o.target_encode_create

Create Target Encoding Map

h2o.target_encode_apply

Apply Target Encoding Map to Frame

h2o.varimp_plot

Plot Variable Importances

Basic Imputation of H2O Vectors

h2o.import_sql_table

Import SQL Table into H2O

Get the number of factor levels for this frame.

h2o.networkTest

View Network Traffic Speed

Get a parse setup back for the staged data.

Which indice contains the max value?

Column names of an H2OFrame

length,H2OTree-method

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

predict_contributions.H2OModel

Predict feature contributions - SHAP values on an H2O Model (only GBM and XGBoost models).

Compute naive Bayes probabilities on an H2O dataset.

Summarizes the columns of an H2OFrame.

h2o.randomForest

Build a Random Forest model

Column names of an H2OFrame

predict_leaf_node_assignment.H2OModel

Predict the Leaf Node Assignment on an H2O Model

h2o.isolationForest

Trains an Isolation Forest model

Method on Keyed objects allowing to obtain their key.

h2o.kfold_column

Produce a k-fold column vector.

Variance of a column or covariance of columns.

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

Retrieve the R2 value

h2o.scoreHistory

Retrieve Model Score History

h2o.partialPlot

Partial Dependence Plots

Performs k-means clustering on an H2O dataset

Check if factor

Check if numeric

Retrieve the Log Loss Value

summary,H2OModel-method

Print the Model Summary

Scaling and Centering of an H2OFrame

Get the total sum of squares.

Log a message on the server-side logs

h2o.list_api_extensions

List registered API extensions

Set Levels of H2O Factor Column

h2o.makeGLMModel

Set betas of an existing H2O GLM Model

Retrieve the Mean Absolute Error Value

h2o.list_all_extensions

List all H2O registered extensions

summary,H2OGrid-method

Format grid object in user-friendly way

Display the structure of an H2OFrame object

Display the structure of an H2OFrame object

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

h2o.setTimezone

Set the Time Zone on the H2O cluster

h2o.list_core_extensions

List registered core extensions

Convert strings to uppercase

Compute element-wise string distances between two H2OFrames

Merge Two H2O Data Frames

h2o.mean_residual_deviance

Retrieve the Mean Residual Deviance value

Check if character

Which index contains the min value?

Retrieve the variable importance.

Print An H2OFrame

Return list of jobs performed by the H2O cluster

h2o.mean_per_class_error

Retrieve the mean per class error

Check if factor

Get the Within SS

Print method for H2OTable objects

List Keys on an H2O Cluster

H2O Model Metric Accessor Functions

Strip set from left

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

summary,H2OCoxPHModel-method

Summary method for H2OCoxPHModel objects

Remove Rows With NAs

Returns the minima of the input values.

Print An H2OFrame

h2o.predict_json

H2O Prediction from R without having H2O running

Delete Columns from an H2OFrame

Replicate Elements of Vectors or Lists into H2O

Predict on an H2O Model

h2o.num_iterations

Retrieve the number of iterations.

Returns the maxima of the input values.

Compute msec since the Unix Epoch

Count of NAs per column

Strip set from right

Saves an existing Grid of models into a given folder.

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

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

h2o.no_progress

Disable Progress Bar

h2o.set_s3_credentials

Creates a new Amazon S3 client internally with specified credentials.

Convert Milliseconds to Months in H2O Datasets

Return the number of rows present in x.

Principal component analysis of an H2O data frame

Retrieves Mean Squared Error Value

h2o.performance

Model Performance Metrics in H2O

Return the number of columns present in x.

h2o.num_valid_substrings

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

staged_predict_proba.H2OModel

Predict class probabilities at each stage of an H2O Model

Trains a Support Vector Machine model on an H2O dataset

Shut Down H2O Instance

h2o.std_coef_plot

Plot Standardized Coefficient Magnitudes

Retrieves Root Mean Squared Error Value

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.

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

Standard Deviation of a column of data.

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

Compute the sine of x

h2o.target_encode_fit

Deprecated API. Please use h2o.targetencoder model instead.

Quantiles of H2O Frames.

Save an H2O Model Object to Disk

Delete Objects In H2O

h2o.residual_deviance

Retrieve the residual deviance

h2o.residual_dof

Retrieve the residual degrees of freedom

Produce a Vector of Random Uniform Numbers

h2o.proj_archetypes

Convert Archetypes to Features from H2O GLRM Model

Scaling and Centering of an H2OFrame

Retrieve the standard deviations of principal components

h2o.transform,H2OTargetEncoderModel-method

Applies target encoding to a given dataset

h2o.stackedEnsemble

Builds a Stacked Ensemble

United States Congressional Voting Records 1984

Skewness of a column

h2o.show_progress

Enable Progress Bar

Compute the tangent of x

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

h2o.targetencoder

Transformation of a categorical variable with a mean value of the target variable

h2o.startLogging

Start Writing H2O R Logs

Cross Tabulation and Table Creation in H2O

Use H2O Transformation model and apply the underlying transformation

h2o.target_encode_transform

Deprecated API. Please use h2o.targetencoder model instead. Transform Frame by Target Encoding Map

Convert a word2vec model into an H2OFrame

Compute the hyperbolic tangent of x

Convert Milliseconds to Week of Week Year in H2O Datasets

h2o.transform_word2vec

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

Retrieve the respective weight matrix

h2o.transform,H2OWordEmbeddingModel-method

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

Truncate values in x toward 0

Build an eXtreme Gradient Boosting model

Plot an H2O Model

plot.H2OTabulate

Plot an H2O Tabulate Heatmap

predict.H2OModel

Predict on an H2O Model

h2o.stopLogging

Stop Writing H2O R Logs

Edgar Anderson's Iris Data

predict.H2OAutoML

Predict on an AutoML object

h2o.xgboost.available

Determines whether an XGBoost model can be built

Use optional package

Tabulation between Two Columns of an H2OFrame

Convert Milliseconds to Years in H2O Datasets

Muscular Actuations for Walking Subject

h2o.tot_withinss

Get the total within cluster sum of squares.

Is H2O Frame object

h2o.upload_mojo

Imports a MOJO from a local filesystem, creating a Generic model with it.

Shutdown H2O cluster after examples run

Prostate Cancer Study

Check if numeric

Range of an H2O Column