Learn R Programming

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

h2o (version 3.24.0.5)

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).

Copy Link

Version

Install

install.packages('h2o')

Monthly Downloads

9,655

Version

3.24.0.5

License

Apache License (== 2.0)

Issues

Pull Requests

Stars

Forks

Repository

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

Maintainer

Erin LeDell

Last Published

June 21st, 2019

Functions in h2o (3.24.0.5)

H2OAutoML-class

The H2OAutoML class

Logical or for H2OFrames

as.vector.H2OFrame

Convert an H2OFrame to a vector

Helper Collapse Function

The H2OModel object.

Inspect/Summary Endpoints

Australia Coastal Data

.h2o.__ALL_CAPABILITIES

Capabilities endpoints

Returns the column names of an H2OFrame

Logical and for H2OFrames

Apply on H2O Datasets

Import/Export Endpoints

H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object

Returns the Dimensions of an H2OFrame

Convert H2O Data to Factors

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

Create H2OFrame

The H2OFrame class

Removal Endpoints

S3 Group Generic Functions for H2O

.h2o.__MODEL_BUILDERS

Model Builder Endpoint Generator

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

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

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

Sorts an H2O frame by columns

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

H2O R Interface

Convert H2O Data to Numerics

.h2o.__EXPORT_FILES

Export Files Endpoint Generator

.h2o.doSafePOST

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

Convert between character representations and objects of Date class

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

H2OCoxPHModelSummary-class

The H2OCoxPHModelSummary object.

H2OCoxPHModel-class

The H2OCoxPHModel object.

Retrieve the Model Centers

h2o.cluster_sizes

Retrieve the cluster sizes

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.

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

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

h2o.deeplearning

Build a Deep Neural Network model using CPUs

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

h2o.columns_by_type

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

Build a Deep Learning model using multiple native GPU backends

.skip_if_not_developer

H2O <-> R Communication and Utility Methods

Build an Aggregated Frame

h2o.computeGram

Compute weighted gram matrix.

Retrieve the Akaike information criterion (AIC) value

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

The H2ONode class.

H2OModelFuture-class

H2O Future Model

Export a Model to HDFS

.h2o.primitives

Map of operations known to H2O

as.data.frame.H2OFrame

Converts parsed H2O data into an R data frame

as.character.H2OFrame

Convert an H2OFrame to a String

H2OSplitNode-class

The H2OSplitNode class.

Administrative Endpoints

The H2O Package Environment

.h2o.__LOGANDECHO

Log and Echo Endpoint

Get the between cluster sum of squares

Access H2O Gains/Lift Tables

Rename an H2O object.

Accessor Methods for H2OModel Object

Import Files into H2O

Dump the stack into the JVM's stdout.

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.

H2O Grid Support

Get an R reference to an H2O model

h2o.kfold_column

Produce a k-fold column vector.

Search for matches to an argument pattern

H2O Apply Conditional Statement

Compute the log2 of x

h2o.clusterIsUp

Determine if an H2O cluster is up or not

h2o.mean_residual_deviance

Retrieve the Mean Residual Deviance value

Log a message on the server-side logs

.h2o.__REST_API_VERSION

H2O Package Constants

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

dimnames.H2OFrame

Column names of an H2OFrame

Starting H2O For examples

Rapids Endpoint

Return the respective bias vector

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

Check H2OFrame columns for factors

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

h2o.clusterInfo

Print H2O cluster info

Automatic Machine Learning

Retrieve the AUC

Compute the hyperbolic cosine of x

Delete All H2O R Logs

Correlation of columns.

Compute the cosine of x

h2o.cross_validation_holdout_predictions

Retrieve the cross-validation holdout predictions

h2o.cross_validation_models

Retrieve the cross-validation models

.h2o.is_progress

Check if Progress Bar is Enabled

as.matrix.H2OFrame

Convert an H2OFrame to a matrix

H2OModelMetrics-class

The H2OModelMetrics Object.

h2o.cross_validation_predictions

Retrieve the cross-validation predictions

Return the cumulative max over a column or across a row

Compute msec since the Unix Epoch

Returns the minima of the input values.

Return the cumulative min over a column or across a row

Get the number of factor levels for this frame.

h2o.networkTest

View Network Traffic Speed

h2o.clusterStatus

Return the status of the cluster

h2o.predict_json

H2O Prediction from R without having H2O running

Shannon entropy

h2o.reconstruct

Reconstruct Training Data via H2O GLRM Model

Print An H2OFrame

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

h2o.deepwater.available

Determines whether Deep Water is available

Convert H2O Data to Numeric

.h2o.__CREATE_FRAME

H2OFrame Manipulation

.h2o.__DECRYPTION_SETUP

Decryption Endpoints

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

Conduct a lag 1 transform on a numeric H2OFrame column

Return the cumulative product over a column or across a row

Compute the exponential function of x

.h2o.__MODEL_METRICS

Model Metrics Endpoint

h2o.genericModel

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

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 arc cosine of x

Column names of an H2OFrame

h2o.residual_deviance

Retrieve the residual deviance

Scaling and Centering of an H2OFrame

Replicate Elements of Vectors or Lists into H2O

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

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.

Build gradient boosted classification or regression trees

h2o.aggregated_frame

Retrieve an aggregated frame from an Aggregator model

Return the Head or Tail of an H2O Dataset.

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

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

Compute the square root of x

Split an H2O Data Set

Convert a word2vec model into an H2OFrame

Tokenize String

h2o.scoreHistory

Retrieve Model Score History

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

Fit a generalized linear model

Convert strings to lowercase

Check if numeric

H2O Description of A Dataset

Check if numeric

Compute the log10 of x

h2o.isolationForest

Trains an Isolation Forest model

h2o.list_all_extensions

List all H2O registered extensions

Generalized low rank decomposition of an H2O data frame

h2o.list_api_extensions

List registered API extensions

length,H2OTree-method

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

Print method for H2OTable objects

Prostate Cancer Study

.h2o.__PARSE_SETUP

Parse Endpoints

.h2o.__W2V_SYNONYMS

Word2Vec Endpoints

.h2o.__checkConnectionHealth

Check H2O Server Health

Convert H2O Data to Factors

h2o.ascharacter

Convert H2O Data to Characters

Compute A Histogram

Check Client Mode Connection

h2o.list_core_extensions

List registered core extensions

Compute the log1p of x

h2o.makeGLMModel

Set betas of an existing H2O GLM Model

Strip set from left

Retrieve the Mean Absolute Error Value

Return list of jobs performed by the H2O cluster

Retrieves Mean Squared Error Value

Convert Milliseconds to Months in H2O Datasets

h2o.num_iterations

Retrieve the number of iterations.

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

Anomaly Detection via H2O Deep Learning Model

h2o.make_metrics

Create Model Metrics from predicted and actual values in H2O

Get a parse setup back for the staged data.

h2o.num_valid_substrings

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

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

Return the cumulative sum over a column or across a row

Cut H2O Numeric Data to Factor

Connect to a running H2O instance.

h2o.confusionMatrix

Access H2O Confusion Matrices

Return column names of an H2OFrame

h2o.partialPlot

Partial Dependence Plots

Range of an H2O Column

staged_predict_proba.H2OModel

Predict class probabilities at each stage of an H2O Model

h2o.filterNACols

Filter NA Columns

h2o.decryptionSetup

Setup a Decryption Tool

h2o.cross_validation_fold_assignment

Retrieve the cross-validation fold assignment

h2o.createFrame

Data H2OFrame Creation in H2O

h2o.centroid_stats

Retrieve centroid statistics

Combine H2O Datasets by Columns

Retrieve the Model Centers STD

h2o.getConnection

Retrieve an H2O Connection

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

Quantiles of H2O Frames.

Group and Apply by Column

String Global Substitute

Convert Milliseconds to Day of Month in H2O Datasets

h2o.hit_ratio_table

Retrieve the Hit Ratios

Convert Milliseconds to Hour of Day in H2O Datasets

h2o.insertMissingValues

Insert Missing Values into an H2OFrame

Remove All Objects on the H2O Cluster

Retrieve the R2 value

Load H2O Model from HDFS or Local Disk

h2o.interaction

Categorical Interaction Feature Creation in H2O

Delete Columns from an H2OFrame

h2o.deepfeatures

Feature Generation via H2O Deep Learning or DeepWater Model

Convert Milliseconds to Day of Week in H2O Datasets

Standard Deviation of a column of data.

h2o.downloadAllLogs

Download H2O Log Files to Disk

h2o.downloadCSV

Download H2O Data to Disk

h2o.findSynonyms

Find synonyms using a word2vec model.

Retrieve the standard deviations of principal components

Compute DCT of an H2OFrame

h2o.find_row_by_threshold

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

Compute the logarithm of x

Shut Down H2O Instance

Split H2O Dataset, Apply Function, and Return Results

h2o.download_mojo

Download the model in MOJO format.

Value Matching in H2O

Returns the maxima of the input values.

h2o.getTimezone

Get the Time Zone on the H2O cluster Returns a string

Return the number of columns present in x.

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

Compute naive Bayes probabilities on an H2O dataset.

h2o.import_sql_select

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

Get the types-per-column

h2o.find_threshold_by_max_metric

Find the threshold, give the max metric

h2o.download_pojo

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

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

h2o.import_sql_table

Import SQL Table into H2O

Basic Imputation of H2O Vectors

Initialize and Connect to H2O

Column names of an H2OFrame

h2o.std_coef_plot

Plot Standardized Coefficient Magnitudes

h2o.no_progress

Disable Progress Bar

Return the number of rows present in x.

h2o.stopLogging

Stop Writing H2O R Logs

Retrieve the variable importance.

Variance of a column or covariance of columns.

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.

Kurtosis of a column

Performs k-means clustering on an H2O dataset

predict.H2OAutoML

Predict on an AutoML object

plot.H2OTabulate

Plot an H2O Tabulate Heatmap

Retrieve the Log Loss Value

Principal component analysis of an H2O data frame

Retrieve the pr_auc

h2o.randomForest

Build a Random Forest model

List Keys on an H2O Cluster

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

summary,H2OGrid-method

Format grid object in user-friendly way

Merge Two H2O Data Frames

h2o.getFutureModel

Get future model

Retrieve the GINI Coefficcient

h2o.import_hive_table

Import Hive Table into H2O

h2o.ischaracter

Check if character

h2o.import_mojo

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

Get h2o version

Check if factor

h2o.getGLMFullRegularizationPath

Extract full regularization path from a GLM model

Return the levels from the column requested column.

H2O Model Metric Accessor Functions

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

h2o.mean_per_class_error

Retrieve the mean per class error

h2o.listTimezones

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

h2o.mojo_predict_csv

H2O Prediction from R without having H2O running

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

summary,H2OModel-method

Print the Model Summary

View H2O R Logs

h2o.mojo_predict_df

H2O Prediction from R without having H2O running

h2o.null_deviance

Retrieve the null deviance

Retrieve the null degrees of freedom

H2O Data Parsing

Skewness of a column

Combine H2O Datasets by Rows

Compute the sine of x

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

Remove Rows With NAs

h2o.proj_archetypes

Convert Archetypes to Features from H2O GLRM Model

Strip set from right

Retrieves Root Mean Squared Error Value

Set Levels of H2O Factor Column

Count of NAs per column

h2o.performance

Model Performance Metrics in H2O

Produce a Vector of Random Uniform Numbers

String Substitute

Save an H2O Model Object to Disk

Retrieve the Root Mean Squared Log Error

Compute element-wise string distances between two H2OFrames

Display the structure of an H2OFrame object

Compute the hyperbolic tangent of x

Compute the tangent of x

h2o.residual_dof

Retrieve the residual degrees of freedom

h2o.setTimezone

Set the Time Zone on the H2O cluster

h2o.show_progress

Enable Progress Bar

h2o.set_s3_credentials

Creates a new Amazon S3 client internally with specified credentials.

h2o.target_encode_fit

Create Target Encoding Map

Delete Objects In H2O

Convert strings to uppercase

Get the Within SS

h2o.target_encode_transform

Transform Frame by Target Encoding Map

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

Is H2O Frame object

Check if factor

Use optional package

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

predict_leaf_node_assignment.H2OModel

Predict the Leaf Node Assignment on an H2O Model

h2o.saveModelDetails

Save an H2O Model Details

h2o.upload_mojo

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

Which indice contains the max value?

Which index contains the min value?

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

h2o.stackedEnsemble

Builds a Stacked Ensemble

Save an H2O Model Object as Mojo to Disk

h2o.startLogging

Start Writing H2O R Logs

Print An H2OFrame

Summarizes the columns of an H2OFrame.

Cross Tabulation and Table Creation in H2O

h2o.target_encode_apply

Apply Target Encoding Map to Frame

h2o.target_encode_create

Create Target Encoding Map

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

Muscular Actuations for Walking Subject

Edgar Anderson's Iris Data

Truncate values in x toward 0

h2o.varimp_plot

Plot Variable Importances

Tabulation between Two Columns of an H2OFrame

Check if character

h2o.tot_withinss

Get the total within cluster sum of squares.

Retrieve the respective weight matrix

Get the total sum of squares.

Convert Milliseconds to Week of Week Year in H2O Datasets

predict.H2OModel

Predict on an H2O Model

Convert Milliseconds to Years in H2O Datasets

United States Congressional Voting Records 1984

Column names of an H2OFrame

predict_contributions.H2OModel

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

Plot an H2O Model

Which indices are TRUE?

Build an eXtreme Gradient Boosting model

h2o.xgboost.available

Determines whether an XGBoost model can be built

Shutdown H2O cluster after examples run

Display the structure of an H2OFrame object

summary,H2OCoxPHModel-method

Summary method for H2OCoxPHModel objects

H2OClusteringModel-class

The H2OClusteringModel object.

H2OConnectionMutableState

The H2OConnectionMutableState class

H2OConnection-class

The H2OConnection class.

The H2OTree class.

H2OLeafNode-class

The H2OLeafNode class.