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h2o (version 3.26.0.2)

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

9,655

Version

3.26.0.2

License

Apache License (== 2.0)

Issues

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Stars

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Repository

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

Maintainer

Erin LeDell

Last Published

August 1st, 2019

Functions in h2o (3.26.0.2)

S3 Group Generic Functions for H2O

as.matrix.H2OFrame

Convert an H2OFrame to a matrix

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

feature_frequencies.H2OModel

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

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

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

Create H2OFrame

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

h2o.ascharacter

Convert H2O Data to Characters

Check H2OFrame columns for factors

Convert H2O Data to Factors

h2o.clusterIsUp

Determine if an H2O cluster is up or not

h2o.clusterStatus

Return the status of the cluster

h2o.columns_by_type

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

h2o.deeplearning

Build a Deep Neural Network model using CPUs

Access H2O Gains/Lift Tables

Build a Deep Learning model using multiple native GPU backends

h2o.computeGram

Compute weighted gram matrix.

Return the cumulative product over a column or across a row

Return the cumulative min over a column or across a row

Get the types-per-column

Return the Head or Tail of an H2O Dataset.

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

Check if factor

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

h2o.getTimezone

Get the Time Zone on the H2O cluster Returns a string

h2o.ischaracter

Check if character

Compute A Histogram

h2o.listTimezones

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

h2o.list_all_extensions

List all H2O registered extensions

h2o.list_core_extensions

List registered core extensions

h2o.list_api_extensions

List registered API extensions

H2OLeafNode-class

The H2OLeafNode class.

H2OConnectionMutableState

The H2OConnectionMutableState class

The H2OModel object.

H2OConnection-class

The H2OConnection class.

Australia Coastal Data

as.vector.H2OFrame

Convert an H2OFrame to a vector

H2OModelMetrics-class

The H2OModelMetrics Object.

Removal Endpoints

Convert H2O Data to Numeric

H2OModelFuture-class

H2O Future Model

.h2o.__MODEL_BUILDERS

Model Builder Endpoint Generator

.h2o.__DECRYPTION_SETUP

Decryption Endpoints

.h2o.__PARSE_SETUP

Parse Endpoints

Returns the column names of an H2OFrame

Rapids Endpoint

as.data.frame.H2OFrame

Converts parsed H2O data into an R data frame

h2o.centroid_stats

Retrieve centroid statistics

Retrieve the Model Centers STD

h2o.aggregated_frame

Retrieve an aggregated frame from an Aggregator model

Compute the arc cosine of x

Correlation of columns.

Retrieve the Mean Absolute Error Value

h2o.makeGLMModel

Set betas of an existing H2O GLM Model

H2O Model Metric Accessor Functions

h2o.deepfeatures

Feature Generation via H2O Deep Learning or DeepWater Model

h2o.decryptionSetup

Setup a Decryption Tool

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

Conduct a lag 1 transform on a numeric H2OFrame column

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

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

h2o.getGLMFullRegularizationPath

Extract full regularization path from a GLM model

h2o.getFutureModel

Get future model

h2o.find_threshold_by_max_metric

Find the threshold, give the max metric

.h2o.__MODEL_METRICS

Model Metrics Endpoint

.h2o.is_progress

Check if Progress Bar is Enabled

.h2o.doSafePOST

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

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

H2OCoxPHModel-class

The H2OCoxPHModel object.

Returns the minima of the input values.

Return the number of rows present in x.

Remove All Objects on the H2O Cluster

Fit a generalized linear model

Generalized low rank decomposition of an H2O data frame

H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object

h2o.hit_ratio_table

Retrieve the Hit Ratios

.h2o.primitives

Map of operations known to H2O

Combine H2O Datasets by Columns

.skip_if_not_developer

H2O <-> R Communication and Utility Methods

h2o.cross_validation_predictions

Retrieve the cross-validation predictions

h2o.null_deviance

Retrieve the null deviance

H2OCoxPHModelSummary-class

The H2OCoxPHModelSummary object.

Logical or for H2OFrames

h2o.num_iterations

Retrieve the number of iterations.

Retrieve the null degrees of freedom

Compute the square root of x

Retrieves Root Mean Squared Error Value

Compute the logarithm of x

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

The H2O Package Environment

Starting H2O For examples

Accessor Methods for H2OModel Object

Logical and for H2OFrames

Delete All H2O R Logs

h2o.clusterInfo

Print H2O cluster info

Build an Aggregated Frame

The H2OTree class.

Convert H2O Data to Factors

h2o.proj_archetypes

Convert Archetypes to Features from H2O GLRM Model

.h2o.__ALL_CAPABILITIES

Capabilities endpoints

H2OAutoML-class

The H2OAutoML class

H2OClusteringModel-class

The H2OClusteringModel object.

.h2o.__CREATE_FRAME

H2OFrame Manipulation

H2OSplitNode-class

The H2OSplitNode class.

The H2ONode class.

.h2o.__LOGANDECHO

Log and Echo Endpoint

Convert Milliseconds to Hour of Day in H2O Datasets

The H2OFrame class

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

h2o.set_s3_credentials

Creates a new Amazon S3 client internally with specified credentials.

h2o.setTimezone

Set the Time Zone on the H2O cluster

Delete Objects In H2O

.h2o.__checkConnectionHealth

Check H2O Server Health

H2O R Interface

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

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

Administrative Endpoints

Compute the log10 of x

Virtual Keyed class

Retrieve the GINI Coefficcient

Helper Collapse Function

Import/Export Endpoints

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

Apply on H2O Datasets

Compute the absolute value of x

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

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

Get the between cluster sum of squares

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

Return the respective bias vector

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

Retrieve the Akaike information criterion (AIC) value

h2o.mean_residual_deviance

Retrieve the Mean Residual Deviance value

Kurtosis of a column

h2o.cluster_sizes

Retrieve the cluster sizes

Return the levels from the column requested column.

Sorts an H2O frame by columns

Return column names of an H2OFrame

h2o.confusionMatrix

Access H2O Confusion Matrices

Load H2O Model from HDFS or Local Disk

Value Matching in H2O

h2o.make_metrics

Create Model Metrics from predicted and actual values in H2O

Return list of jobs performed by the H2O cluster

as.character.H2OFrame

Convert an H2OFrame to a String

Returns the Dimensions of an H2OFrame

Merge Two H2O Data Frames

Return the number of columns present in x.

Column names of an H2OFrame

h2o.stackedEnsemble

Builds a Stacked Ensemble

Compute the hyperbolic tangent of x

h2o.target_encode_apply

Apply Target Encoding Map to Frame

Connect to a running H2O instance.

Convert Milliseconds to Day of Month in H2O Datasets

Convert between character representations and objects of Date class

Convert H2O Data to Numerics

Check Client Mode Connection

h2o.getConnection

Retrieve an H2O Connection

h2o.download_mojo

Download the model in MOJO format.

h2o.filterNACols

Filter NA Columns

h2o.download_pojo

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

Convert Milliseconds to Day of Week in H2O Datasets

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

Rename an H2O object.

h2o.tot_withinss

Get the total within cluster sum of squares.

length,H2OTree-method

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

Truncate values in x toward 0

Check if numeric

Print method for H2OTable objects

Get h2o version

Return the cumulative max over a column or across a row

h2o.genericModel

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

Performs k-means clustering on an H2O dataset

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

Check if numeric

Prostate Cancer Study

Dump the stack into the JVM's stdout.

h2o.import_hive_table

Import Hive Table into H2O

h2o.find_row_by_threshold

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

h2o.findSynonyms

Find synonyms using a word2vec model.

Initialize and Connect to H2O

h2o.import_mojo

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

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

h2o.isolationForest

Trains an Isolation Forest model

Compute element-wise string distances between two H2OFrames

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

View H2O R Logs

h2o.networkTest

View Network Traffic Speed

h2o.num_valid_substrings

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

Save an H2O Model Object as Mojo to Disk

Principal component analysis of an H2O data frame

Build an eXtreme Gradient Boosting model

dimnames.H2OFrame

Column names of an H2OFrame

.h2o.__EXPORT_FILES

Export Files Endpoint Generator

Retrieve the Model Centers

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

Compute the hyperbolic cosine of x

Get the number of factor levels for this frame.

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

Basic Imputation of H2O Vectors

h2o.createFrame

Data H2OFrame Creation in H2O

Log a message on the server-side logs

Retrieve the Log Loss Value

h2o.cross_validation_fold_assignment

Retrieve the cross-validation fold assignment

.h2o.__REST_API_VERSION

H2O Package Constants

Inspect/Summary Endpoints

Compute DCT of an H2OFrame

Predict on an H2O Model

staged_predict_proba.H2OModel

Predict class probabilities at each stage of an H2O Model

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

Split H2O Dataset, Apply Function, and Return Results

Summarizes the columns of an H2OFrame.

h2o.insertMissingValues

Insert Missing Values into an H2OFrame

h2o.downloadAllLogs

Download H2O Log Files to Disk

H2O Grid Support

h2o.downloadCSV

Download H2O Data to Disk

Trains a Support Vector Machine model on an H2O dataset

generate_col_ind

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

.h2o.__W2V_SYNONYMS

Word2Vec Endpoints

Returns the maxima of the input values.

Retrieve the AUC

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

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.

Anomaly Detection via H2O Deep Learning Model

Automatic Machine Learning

Return the cumulative sum over a column or across a row

Compute msec since the Unix Epoch

Export a Model to HDFS

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.performance

Model Performance Metrics in H2O

Search for matches to an argument pattern

Group and Apply by Column

Build gradient boosted classification or regression trees

Compute naive Bayes probabilities on an H2O dataset.

Display the structure of an H2OFrame object

h2o.stopLogging

Stop Writing H2O R Logs

Cut H2O Numeric Data to Factor

H2O Data Parsing

Save an H2O Model Object to Disk

h2o.no_progress

Disable Progress Bar

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.

Display the structure of an H2OFrame object

Get a parse setup back for the staged data.

h2o.mean_per_class_error

Retrieve the mean per class error

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

Get the Within SS

String Global Substitute

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.

Import Files into H2O

H2O Description of A Dataset

Compute the exponential function of x

Shannon entropy

h2o.deepwater.available

Determines whether Deep Water is available

Get an R reference to an H2O model

H2O Apply Conditional Statement

h2o.reconstruct

Reconstruct Training Data via H2O GLRM Model

h2o.import_sql_select

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

h2o.import_sql_table

Import SQL Table into H2O

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

h2o.saveModelDetails

Save an H2O Model Details

Retrieve per-variable split information for a given Isolation Forest model.

Method on Keyed objects allowing to obtain their key.

h2o.kfold_column

Produce a k-fold column vector.

h2o.interaction

Categorical Interaction Feature Creation in H2O

h2o.upload_mojo

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

h2o.mojo_predict_csv

H2O Prediction from R without having H2O running

Convert Milliseconds to Week of Week Year in H2O Datasets

Retrieve the standard deviations of principal components

Scaling and Centering of an H2OFrame

Convert Milliseconds to Months in H2O Datasets

Compute the log1p of x

List Keys on an H2O Cluster

Tabulation between Two Columns of an H2OFrame

Compute the log2 of x

Strip set from left

h2o.mojo_predict_df

H2O Prediction from R without having H2O running

h2o.scoreHistory

Retrieve Model Score History

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

Convert strings to lowercase

String Substitute

Check if factor

Shutdown H2O cluster after examples run

Tokenize String

Count of NAs per column

h2o.target_encode_fit

Create Target Encoding Map

Split an H2O Data Set

Skewness of a column

Compute the sine of x

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

Column names of an H2OFrame

Cross Tabulation and Table Creation in H2O

h2o.target_encode_create

Create Target Encoding Map

h2o.xgboost.available

Determines whether an XGBoost model can be built

Is H2O Frame object

summary,H2OCoxPHModel-method

Summary method for H2OCoxPHModel objects

Retrieves Mean Squared Error Value

h2o.residual_deviance

Retrieve the residual deviance

Remove Rows With NAs

Shut Down H2O Instance

Compute the tangent of x

h2o.partialPlot

Partial Dependence Plots

Replicate Elements of Vectors or Lists into H2O

h2o.std_coef_plot

Plot Standardized Coefficient Magnitudes

h2o.startLogging

Start Writing H2O R Logs

Retrieve the R2 value

summary,H2OModel-method

Print the Model Summary

h2o.residual_dof

Retrieve the residual degrees of freedom

Quantiles of H2O Frames.

h2o.randomForest

Build a Random Forest model

h2o.show_progress

Enable Progress Bar

Delete Columns from an H2OFrame

Strip set from right

Retrieve the pr_auc

Print An H2OFrame

Range of an H2O Column

Edgar Anderson's Iris Data

predict.H2OModel

Predict on an H2O Model

Check if character

Variance of a column or covariance of columns.

summary,H2OGrid-method

Format grid object in user-friendly way

Produce a Vector of Random Uniform Numbers

Convert Milliseconds to Years in H2O Datasets

United States Congressional Voting Records 1984

Set Levels of H2O Factor Column

Column names of an H2OFrame

Retrieve the respective weight matrix

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

h2o.target_encode_transform

Transform Frame by Target Encoding Map

Which indices are TRUE?

Convert a word2vec model into an H2OFrame

Get the total sum of squares.

h2o.predict_json

H2O Prediction from R without having H2O running

predict_leaf_node_assignment.H2OModel

Predict the Leaf Node Assignment on an H2O Model

Retrieve the Root Mean Squared Log Error

predict.H2OAutoML

Predict on an AutoML object

Combine H2O Datasets by Rows

predict_contributions.H2OModel

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

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

Standard Deviation of a column of data.

Retrieve the variable importance.

Which index contains the min value?

Muscular Actuations for Walking Subject

Plot an H2O Model

Use optional package

Convert strings to uppercase

Which indice contains the max value?

h2o.varimp_plot

Plot Variable Importances

plot.H2OTabulate

Plot an H2O Tabulate Heatmap

Print An H2OFrame