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h2o (version 3.20.0.2)

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

3.20.0.2

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

June 17th, 2018

Functions in h2o (3.20.0.2)

as.vector.H2OFrame

Convert an H2OFrame to a vector

as.matrix.H2OFrame

Convert an H2OFrame to a matrix

Convert H2O Data to Numeric

Sorts an H2O frame by columns

Compute the absolute value of x

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

Convert between character representations and objects of Date class

h2o.clusterStatus

Return the status of the cluster

Build an Aggregated Frame

Retrieve the AUC

h2o.cluster_sizes

Retrieve the cluster sizes

Retrieve the Akaike information criterion (AIC) value

Australia Coastal Data

H2O R Interface

Convert H2O Data to Factors

as.data.frame.H2OFrame

Converts parsed H2O data into an R data frame

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

Automatic Machine Learning

h2o.clusterIsUp

Determine if an H2O cluster is up or not

Create H2OFrame

dimnames.H2OFrame

Column names of an H2OFrame

generate_col_ind

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

h2o.cross_validation_holdout_predictions

Retrieve the cross-validation holdout predictions

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

Anomaly Detection via H2O Deep Learning Model

Convert H2O Data to Numerics

Retrieve the Model Centers

Rename an H2O object.

Compute the arc cosine of x

Returns the column names of an H2OFrame

Returns the Dimensions of an H2OFrame

h2o.aggregated_frame

Retrieve an aggregated frame from an Aggregator model

Get the between cluster sum of squares

h2o.cross_validation_models

Retrieve the cross-validation models

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

Check H2OFrame columns for factors

Retrieve the Model Centers STD

h2o.decryptionSetup

Setup a Decryption Tool

h2o.centroid_stats

Retrieve centroid statistics

h2o.deepwater.available

Determines whether Deep Water is available

h2o.deepfeatures

Feature Generation via H2O Deep Learning or DeepWater Model

H2O Description of A Dataset

h2o.ascharacter

Convert H2O Data to Characters

h2o.columns_by_type

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

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

Export a Model to HDFS

Access H2O Gains/Lift Tables

Get the types-per-column

Convert Milliseconds to Hour of Day in H2O Datasets

Convert H2O Data to Factors

Get h2o version

Return the respective bias vector

h2o.computeGram

Compute weighted gram matrix.

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

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

Compute the hyperbolic cosine of x

Convert Milliseconds to Day of Month in H2O Datasets

Combine H2O Datasets by Columns

Convert Milliseconds to Day of Week in H2O Datasets

Return column names of an H2OFrame

Return the cumulative min over a column or across a row

Column names of an H2OFrame

Correlation of columns.

h2o.clusterInfo

Print H2O cluster info

Delete All H2O R Logs

H2O Apply Conditional Statement

h2o.confusionMatrix

Access H2O Confusion Matrices

Compute DCT of an H2OFrame

Return the cumulative product over a column or across a row

Split H2O Dataset, Apply Function, and Return Results

h2o.interaction

Categorical Interaction Feature Creation in H2O

Connect to a running H2O instance.

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

Check Client Mode Connection

Compute the cosine of x

h2o.list_all_extensions

List all H2O registered extensions

h2o.find_threshold_by_max_metric

Find the threshold, give the max metric

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.cross_validation_predictions

Retrieve the cross-validation predictions

h2o.createFrame

Data H2OFrame Creation in H2O

h2o.findSynonyms

Find synonyms using a word2vec model.

h2o.cross_validation_fold_assignment

Retrieve the cross-validation fold assignment

Return the cumulative max over a column or across a row

Return the cumulative sum over a column or across a row

Cut H2O Numeric Data to Factor

h2o.deeplearning

Build a Deep Neural Network model using CPUs

Conduct a lag 1 transform on a numeric H2OFrame column

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

h2o.find_row_by_threshold

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

h2o.getConnection

Retrieve an H2O Connection

h2o.getFutureModel

Get future model

h2o.list_api_extensions

List registered API extensions

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

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

Generalized low rank decomposition of an H2O data frame

List Keys on an H2O Cluster

h2o.getGLMFullRegularizationPath

Extract full regularization path from a GLM model

Strip set from left

Returns the maxima of the input values.

Search for matches to an argument pattern

Import Files into H2O

H2O Grid Support

Build a Deep Learning model using multiple native GPU backends

h2o.downloadAllLogs

Download H2O Log Files to Disk

Group and Apply by Column

Compute A Histogram

h2o.hit_ratio_table

Retrieve the Hit Ratios

h2o.downloadCSV

Download H2O Data to Disk

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

Check if factor

Check if numeric

h2o.filterNACols

Filter NA Columns

h2o.import_sql_select

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

Shannon entropy

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

Compute the logarithm of x

Get an R reference to an H2O model

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

h2o.getTimezone

Get the Time Zone on the H2O Cloud Returns a string

Retrieves Mean Squared Error Value

Compute the log10 of x

Remove Rows With NAs

h2o.kfold_column

Produce a k-fold column vector.

Return the number of rows present in x.

Compute the exponential function of x

h2o.make_metrics

Create Model Metrics from predicted and actual values in H2O

Build gradient boosted classification or regression trees

Performs k-means clustering on an H2O dataset

Dump the stack into the JVM's stdout.

Value Matching in H2O

h2o.mean_per_class_error

Retrieve the mean per class error

Kurtosis of a column

h2o.mean_residual_deviance

Retrieve the Mean Residual Deviance value

h2o.null_deviance

Retrieve the null deviance

Initialize and Connect to H2O

h2o.import_sql_table

Import SQL Table into H2O

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

Replicate Elements of Vectors or Lists into H2O

Basic Imputation of H2O Vectors

Principal component analysis of an H2O data frame

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

h2o.residual_deviance

Retrieve the residual deviance

h2o.insertMissingValues

Insert Missing Values into an H2OFrame

Return the number of columns present in x.

h2o.list_core_extensions

List registered core extensions

Load H2O Model from HDFS or Local Disk

Strip set from right

Compute the log1p of x

Retrieve the Mean Absolute Error Value

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

Compute the sine of x

h2o.networkTest

View Network Traffic Speed

h2o.makeGLMModel

Set betas of an existing H2O GLM Model

H2O Model Metric Accessor Functions

Retrieve the GINI Coefficcient

Column names of an H2OFrame

Compute the log2 of x

Returns the minima of the input values.

Compute the square root of x

Get the number of factor levels for this frame.

Fit a generalized linear model

Merge Two H2O Data Frames

String Global Substitute

Return the Head or Tail of an H2O Dataset.

H2O Data Parsing

h2o.no_progress

Disable Progress Bar

h2o.ischaracter

Check if character

Get a parse setup back for the staged data.

Retrieve the R2 value

Quantiles of H2O Frames.

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.

h2o.mojo_predict_df

H2O Prediction from R without having H2O running

Combine H2O Datasets by Rows

h2o.stackedEnsemble

Builds a Stacked Ensemble

h2o.residual_dof

Retrieve the residual degrees of freedom

Delete Objects In H2O

Tokenize String

Compute the hyperbolic tangent of x

h2o.target_encode_apply

Apply Target Encoding Map to Frame

Convert strings to lowercase

h2o.predict_json

H2O Prediction from R without having H2O running

Retrieve the respective weight matrix

Print An H2OFrame

Scaling and Centering of an H2OFrame

Convert Milliseconds to Months in H2O Datasets

Which indices are TRUE?

Return the levels from the column requested column.

h2o.listTimezones

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

h2o.scoreHistory

Retrieve Model Score History

Log a message on the server-side logs

Retrieve the null degrees of freedom

h2o.reconstruct

Reconstruct Training Data via H2O GLRM Model

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

h2o.saveModelDetails

Save an H2O Model Details

Compute element-wise string distances between two H2OFrames

String Substitute

h2o.num_iterations

Retrieve the number of iterations.

Save an H2O Model Object as Mojo to Disk

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

h2o.proj_archetypes

Convert Archetypes to Features from H2O GLRM Model

Set Levels of H2O Factor Column

Get the total sum of squares.

Remove All Objects on the H2O Cluster

Delete Columns from an H2OFrame

h2o.setTimezone

Set the Time Zone on the H2O Cloud

Retrieves Root Mean Squared Error Value

h2o.startLogging

Start Writing H2O R Logs

h2o.std_coef_plot

Plot Standardized Coefficient Magnitudes

Retrieve the Root Mean Squared Log Error

Retrieve the Log Loss Value

Truncate values in x toward 0

Convert strings to uppercase

Standard Deviation of a column of data.

Compute msec since the Unix Epoch

Check if factor

h2o.mojo_predict_csv

H2O Prediction from R without having H2O running

Retrieve the standard deviations of principal components

Check if character

Edgar Anderson's Iris Data

Is H2O Frame object

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

h2o.stopLogging

Stop Writing H2O R Logs

Display the structure of an H2OFrame object

predict_leaf_node_assignment.H2OModel

Predict the Leaf Node Assignment on an H2O Model

Tabulation between Two Columns of an H2OFrame

Count of NAs per column

Compute the tangent of x

Compute naive Bayes probabilities on an H2O dataset.

predict.H2OAutoML

Predict on an AutoML object

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

h2o.num_valid_substrings

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

Summarizes the columns of an H2OFrame.

h2o.varimp_plot

Plot Variable Importances

h2o.tot_withinss

Get the total within cluster sum of squares.

predict.H2OModel

Predict on an H2O Model

Convert Milliseconds to Week of Week Year in H2O Datasets

Print An H2OFrame

summary,H2OCoxPHModel-method

Summary method for H2OCoxPHModel objects

Variance of a column or covariance of columns.

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

Check if numeric

Get the Within SS

Column names of an H2OFrame

Muscular Actuations for Walking Subject

View H2O R Logs

h2o.partialPlot

Partial Dependence Plots

Convert Milliseconds to Years in H2O Datasets

Retrieve the variable importance.

Print method for H2OTable objects

Prostate Cancer Study

United States Congressional Voting Records 1984

summary,H2OGrid-method

Format grid object in user-friendly way

Range of an H2O Column

summary,H2OModel-method

Print the Model Summary

h2o.performance

Model Performance Metrics in H2O

Use optional package

Display the structure of an H2OFrame object

Shutdown H2O cloud after examples run

h2o.randomForest

Build a Random Forest model

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

Produce a Vector of Random Uniform Numbers

Save an H2O Model Object to Disk

h2o.show_progress

Enable Progress Bar

Shut Down H2O Instance

Skewness of a column

Split an H2O Data Set

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

Cross Tabulation and Table Creation in H2O

h2o.target_encode_create

Create Target Encoding Map

Convert a word2vec model into an H2OFrame

Which indice contains the max value?

Which index contains the min value?

Build an eXtreme Gradient Boosting model

h2o.xgboost.available

Determines whether an XGBoost model can be built

Plot an H2O Model

plot.H2OTabulate

Plot an H2O Tabulate Heatmap

H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object

The H2OModel object.

The H2OFrame class

H2OModelFuture-class

H2O Future Model

H2OModelMetrics-class

The H2OModelMetrics Object.

H2OConnection-class

The H2OConnection class.

Logical and for H2OFrames

H2OConnectionMutableState

The H2OConnectionMutableState class

Logical or for H2OFrames

H2OCoxPHModel-class

The H2OCoxPHModel object.

S3 Group Generic Functions for H2O

H2OAutoML-class

The H2OAutoML class

H2OClusteringModel-class

The H2OClusteringModel object.

Apply on H2O Datasets

H2OCoxPHModelSummary-class

The H2OCoxPHModelSummary object.

Accessor Methods for H2OModel Object

Starting H2O For examples

as.character.H2OFrame

Convert an H2OFrame to a String