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## RcppDataFrame.R: DataFrame example
##
## Copyright (C) 2011 - 2017 Dirk Eddelbuettel and Romain Francois
##
## This file is part of RcppExamples.
##
## RcppExamples is free software: you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 2 of the License, or
## (at your option) any later version.
##
## RcppExamples is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with RcppExamples. If not, see <http://www.gnu.org/licenses/>.
RcppDataFrame <- function() {
## create a simple data.frame
## here we enforce strings, factors can be used too
D <- data.frame(a=1:3,
b=LETTERS[1:3],
c=as.Date("2011-01-01")+0:2,
stringsAsFactors=FALSE)
cat("Original data frame before call:\n")
print(D)
## Make the call...
val <- DataFrameExample(D)
cat("\nAfter call, original and new data frames:\n")
print(val)
invisible(val)
}
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