a375ad2822
* [R] make sure things work for a single split model; fixes #2191 * [R] add option use_int_id to xgb.model.dt.tree * [R] add example of exporting tree plot to a file * [R] set save_period = NULL as default in xgboost() to be the same as in xgb.train; fixes #2182 * [R] it's a good practice after CRAN releases to bump up package version in dev * [R] allow xgb.DMatrix construction from integer dense matrices * [R] xgb.DMatrix: silent parameter; improve documentation * [R] xgb.model.dt.tree code style changes * [R] update NEWS with parameter changes * [R] code safety & style; handle non-strict matrix and inherited classes of input and model; fixes #2242 * [R] change to x.y.z.p R-package versioning scheme and set version to 0.6.4.3 * [R] add an R package versioning section to the contributors guide * [R] R-package/README.md: clean up the redundant old installation instructions, link the contributors guide
35 lines
1.4 KiB
R
35 lines
1.4 KiB
R
% Generated by roxygen2: do not edit by hand
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% Please edit documentation in R/xgb.DMatrix.R
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\name{xgb.DMatrix}
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\alias{xgb.DMatrix}
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\title{Construct xgb.DMatrix object}
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\usage{
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xgb.DMatrix(data, info = list(), missing = NA, silent = FALSE, ...)
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}
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\arguments{
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\item{data}{a \code{matrix} object (either numeric or integer), a \code{dgCMatrix} object, or a character
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string representing a filename.}
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\item{info}{a named list of additional information to store in the \code{xgb.DMatrix} object.
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See \code{\link{setinfo}} for the specific allowed kinds of}
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\item{missing}{a float value to represents missing values in data (used only when input is a dense matrix).
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It is useful when a 0 or some other extreme value represents missing values in data.}
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\item{silent}{whether to suppress printing an informational message after loading from a file.}
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\item{...}{the \code{info} data could be passed directly as parameters, without creating an \code{info} list.}
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}
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\description{
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Construct xgb.DMatrix object from either a dense matrix, a sparse matrix, or a local file.
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Supported input file formats are either a libsvm text file or a binary file that was created previously by
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\code{\link{xgb.DMatrix.save}}).
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}
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\examples{
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data(agaricus.train, package='xgboost')
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train <- agaricus.train
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dtrain <- xgb.DMatrix(train$data, label=train$label)
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xgb.DMatrix.save(dtrain, 'xgb.DMatrix.data')
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dtrain <- xgb.DMatrix('xgb.DMatrix.data')
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}
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