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[R] maintenance Apr 2017 (#2237)

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* [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
This commit is contained in:
Vadim Khotilovich
2017-05-02 00:51:34 -05:00
committed by Tong He
parent d769b6bcb5
commit a375ad2822
29 changed files with 351 additions and 246 deletions
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6
R-package/R/xgb.DMatrix.save.R
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@@ -15,9 +15,9 @@
xgb.DMatrix.save <- function(dmatrix, fname) {
if (typeof(fname) != "character")
stop("fname must be character")
if (class(dmatrix) != "xgb.DMatrix")
stop("the input data must be xgb.DMatrix")
if (!inherits(dmatrix, "xgb.DMatrix"))
stop("dmatrix must be xgb.DMatrix")
.Call("XGDMatrixSaveBinary_R", dmatrix, fname, 0L, PACKAGE = "xgboost")
.Call("XGDMatrixSaveBinary_R", dmatrix, fname[1], 0L, PACKAGE = "xgboost")
return(TRUE)
}