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h2o (version 3.20.0.8)

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

3.20.0.8

License

Apache License (== 2.0)

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Repository

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

Maintainer

Erin LeDell

Last Published

September 25th, 2018

Functions in h2o (3.20.0.8)

The H2OFrame class

S3 Group Generic Functions for H2O

H2OModelMetrics-class

The H2OModelMetrics Object.

The H2ONode class.

as.data.frame.H2OFrame

Converts parsed H2O data into an R data frame

Convert H2O Data to Factors

H2OConnection-class

The H2OConnection class.

Anomaly Detection via H2O Deep Learning Model

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

Retrieve the Model Centers

Retrieve the Model Centers STD

Logical or for H2OFrames

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

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

h2o.createFrame

Data H2OFrame Creation in H2O

Return the cumulative max over a column or across a row

Accessor Methods for H2OModel Object

Convert H2O Data to Numeric

as.vector.H2OFrame

Convert an H2OFrame to a vector

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 Numerics

Convert H2O Data to Factors

h2o.clusterStatus

Return the status of the cluster

H2OCoxPHModel-class

The H2OCoxPHModel object.

H2OAutoML-class

The H2OAutoML class

H2OSplitNode-class

The H2OSplitNode class.

The H2OTree class.

Australia Coastal Data

Returns the column names of an H2OFrame

h2o.cluster_sizes

Retrieve the cluster sizes

Connect to a running H2O instance.

Returns the Dimensions of an H2OFrame

dimnames.H2OFrame

Column names of an H2OFrame

H2OClusteringModel-class

The H2OClusteringModel object.

Starting H2O For examples

Return the cumulative min over a column or across a row

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

Column names of an H2OFrame

h2o.filterNACols

Filter NA Columns

H2OLeafNode-class

The H2OLeafNode class.

Check H2OFrame columns for factors

Apply on H2O Datasets

h2o.findSynonyms

Find synonyms using a word2vec model.

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

as.character.H2OFrame

Convert an H2OFrame to a String

Correlation of columns.

h2o.getConnection

Retrieve an H2O Connection

Create H2OFrame

Logical and for H2OFrames

Split H2O Dataset, Apply Function, and Return Results

h2o.decryptionSetup

Setup a Decryption Tool

Get the types-per-column

as.matrix.H2OFrame

Convert an H2OFrame to a matrix

Get h2o version

Retrieve the Akaike information criterion (AIC) value

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

Sorts an H2O frame by columns

Automatic Machine Learning

h2o.aggregated_frame

Retrieve an aggregated frame from an Aggregator model

Rename an H2O object.

Retrieve the AUC

Build an Aggregated Frame

h2o.centroid_stats

Retrieve centroid statistics

Return the respective bias vector

Delete All H2O R Logs

Build a Deep Learning model using multiple native GPU backends

H2OCoxPHModelSummary-class

The H2OCoxPHModelSummary object.

Get the between cluster sum of squares

h2o.computeGram

Compute weighted gram matrix.

h2o.confusionMatrix

Access H2O Confusion Matrices

h2o.cross_validation_models

Retrieve the cross-validation models

Return column names of an H2OFrame

h2o.columns_by_type

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

h2o.cross_validation_predictions

Retrieve the cross-validation predictions

H2OFrame-Extract

Extract or Replace Parts of an H2OFrame Object

h2o.clusterInfo

Print H2O cluster info

Compute A Histogram

h2o.deepwater.available

Determines whether Deep Water is available

Return the cumulative product over a column or across a row

h2o.cross_validation_holdout_predictions

Retrieve the cross-validation holdout predictions

h2o.cross_validation_fold_assignment

Retrieve the cross-validation fold assignment

Cut H2O Numeric Data to Factor

h2o.hit_ratio_table

Retrieve the Hit Ratios

Convert Milliseconds to Day of Month in H2O Datasets

h2o.download_pojo

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

Shannon entropy

Return the cumulative sum over a column or across a row

h2o.find_row_by_threshold

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

h2o.ischaracter

Check if character

h2o.find_threshold_by_max_metric

Find the threshold, give the max metric

h2o.deepfeatures

Feature Generation via H2O Deep Learning or DeepWater Model

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

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

h2o.deeplearning

Build a Deep Neural Network model using CPUs

Performs k-means clustering on an H2O dataset

h2o.clusterIsUp

Determine if an H2O cluster is up or not

The H2OModel object.

Retrieve the GINI Coefficcient

Generalized low rank decomposition of an H2O data frame

Search for matches to an argument pattern

Fit a generalized linear model

Kurtosis of a column

H2OModelFuture-class

H2O Future Model

Compute the log1p of x

Compute the cosine of x

Compute the absolute value of x

Compute the log2 of x

h2o.downloadAllLogs

Download H2O Log Files to Disk

Compute msec since the Unix Epoch

Compute the hyperbolic cosine of x

h2o.mojo_predict_csv

H2O Prediction from R without having H2O running

H2O Description of A Dataset

Compute the arc cosine of x

Compute the exponential function of x

h2o.mean_per_class_error

Retrieve the mean per class error

Conduct a lag 1 transform on a numeric H2OFrame column

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.mean_residual_deviance

Retrieve the Mean Residual Deviance value

Retrieves Mean Squared Error Value

h2o.randomForest

Build a Random Forest model

Remove Rows With NAs

Convert between character representations and objects of Date class

h2o.downloadCSV

Download H2O Data to Disk

h2o.download_mojo

Download the model in MOJO format.

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

h2o.getTimezone

Get the Time Zone on the H2O Cloud Returns a string

Return the number of rows present in x.

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

h2o.ascharacter

Convert H2O Data to Characters

String Global Substitute

Combine H2O Datasets by Columns

Initialize and Connect to H2O

Standard Deviation of a column of data.

h2o.insertMissingValues

Insert Missing Values into an H2OFrame

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

h2o.list_all_extensions

List all H2O registered extensions

h2o.list_api_extensions

List registered API extensions

Return the Head or Tail of an H2O Dataset.

Convert Milliseconds to Day of Week in H2O Datasets

h2o.null_deviance

Retrieve the null deviance

Retrieve the standard deviations of principal components

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

Compute DCT of an H2OFrame

h2o.getFutureModel

Get future model

Principal component analysis of an H2O data frame

h2o.getGLMFullRegularizationPath

Extract full regularization path from a GLM model

Compute the logarithm of x

Compute the log10 of x

Remove All Objects on the H2O Cluster

Export a Model to HDFS

Delete Columns from an H2OFrame

h2o.show_progress

Enable Progress Bar

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

h2o.interaction

Categorical Interaction Feature Creation in H2O

H2O Grid Support

Scaling and Centering of an H2OFrame

Group and Apply by Column

h2o.make_metrics

Create Model Metrics from predicted and actual values in H2O

Shut Down H2O Instance

Check Client Mode Connection

h2o.kfold_column

Produce a k-fold column vector.

Access H2O Gains/Lift Tables

Value Matching in H2O

h2o.mojo_predict_df

H2O Prediction from R without having H2O running

Build gradient boosted classification or regression trees

Convert Milliseconds to Months in H2O Datasets

h2o.scoreHistory

Retrieve Model Score History

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

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

Summarizes the columns of an H2OFrame.

Column names of an H2OFrame

Compute the sine of x

Dump the stack into the JVM's stdout.

Get an R reference to an H2O model

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

Convert Milliseconds to Hour of Day in H2O Datasets

Get the total sum of squares.

H2O Apply Conditional Statement

h2o.list_core_extensions

List registered core extensions

h2o.import_sql_table

Import SQL Table into H2O

Load H2O Model from HDFS or Local Disk

Basic Imputation of H2O Vectors

Returns the maxima of the input values.

Return the levels from the column requested column.

List Keys on an H2O Cluster

h2o.num_valid_substrings

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

h2o.listTimezones

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

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

Cross Tabulation and Table Creation in H2O

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

h2o.import_sql_select

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

Import Files into H2O

View H2O R Logs

H2O Model Metric Accessor Functions

Returns the minima of the input values.

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 number of columns present in x.

Combine H2O Datasets by Rows

Check if factor

Convert strings to uppercase

h2o.networkTest

View Network Traffic Speed

Strip set from left

h2o.tot_withinss

Get the total within cluster sum of squares.

H2O Data Parsing

Retrieve the Mean Absolute Error Value

Check if numeric

h2o.residual_dof

Retrieve the residual degrees of freedom

Variance of a column or covariance of columns.

Retrieve the variable importance.

Log a message on the server-side logs

Get the Within SS

Retrieve the Log Loss Value

Set Levels of H2O Factor Column

Delete Objects In H2O

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

h2o.setTimezone

Set the Time Zone on the H2O Cloud

h2o.makeGLMModel

Set betas of an existing H2O GLM Model

Compute the square root of x

Which indice contains the max value?

Which index contains the min value?

Merge Two H2O Data Frames

Get a parse setup back for the staged data.

plot.H2OTabulate

Plot an H2O Tabulate Heatmap

Column names of an H2OFrame

predict.H2OAutoML

Predict on an AutoML object

Get the number of factor levels for this frame.

Plot an H2O Model

staged_predict_proba.H2OModel

Predict class probabilities at each stage of an H2O Model

h2o.no_progress

Disable Progress Bar

Count of NAs per column

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

h2o.proj_archetypes

Convert Archetypes to Features from H2O GLRM Model

h2o.stackedEnsemble

Builds a Stacked Ensemble

Display the structure of an H2OFrame object

String Substitute

h2o.partialPlot

Partial Dependence Plots

h2o.target_encode_create

Create Target Encoding Map

Retrieves Root Mean Squared Error Value

Convert a word2vec model into an H2OFrame

h2o.varimp_plot

Plot Variable Importances

Retrieve the Root Mean Squared Log Error

Convert Milliseconds to Week of Week Year in H2O Datasets

Build an eXtreme Gradient Boosting model

h2o.performance

Model Performance Metrics in H2O

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

Compute naive Bayes probabilities on an H2O dataset.

h2o.reconstruct

Reconstruct Training Data via H2O GLRM Model

Retrieve the null degrees of freedom

h2o.saveModelDetails

Save an H2O Model Details

Save an H2O Model Object as Mojo to Disk

h2o.xgboost.available

Determines whether an XGBoost model can be built

Skewness of a column

Check if numeric

Split an H2O Data Set

Replicate Elements of Vectors or Lists into H2O

Tokenize String

length,H2OTree-method

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

h2o.num_iterations

Retrieve the number of iterations.

Convert strings to lowercase

h2o.residual_deviance

Retrieve the residual deviance

Retrieve the respective weight matrix

h2o.predict_json

H2O Prediction from R without having H2O running

Produce a Vector of Random Uniform Numbers

h2o.std_coef_plot

Plot Standardized Coefficient Magnitudes

h2o.startLogging

Start Writing H2O R Logs

Save an H2O Model Object to Disk

Print An H2OFrame

h2o.stopLogging

Stop Writing H2O R Logs

Print An H2OFrame

Quantiles of H2O Frames.

Print method for H2OTable objects

summary,H2OModel-method

Print the Model Summary

Use optional package

Display the structure of an H2OFrame object

Tabulation between Two Columns of an H2OFrame

Which indices are TRUE?

Retrieve the R2 value

Check if factor

Is H2O Frame object

Compute the tangent of x

Truncate values in x toward 0

Prostate Cancer Study

predict.H2OModel

Predict on an H2O Model

predict_leaf_node_assignment.H2OModel

Predict the Leaf Node Assignment on an H2O Model

Range of an H2O Column

Muscular Actuations for Walking Subject

Shutdown H2O cloud after examples run

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

Strip set from right

Compute element-wise string distances between two H2OFrames

Compute the hyperbolic tangent of x

h2o.target_encode_apply

Apply Target Encoding Map to Frame

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

Convert Milliseconds to Years in H2O Datasets

United States Congressional Voting Records 1984

Edgar Anderson's Iris Data

Check if character

summary,H2OCoxPHModel-method

Summary method for H2OCoxPHModel objects

summary,H2OGrid-method

Format grid object in user-friendly way