### File R/gvisOrgChart.R
### Part of the R package googleVis
### Copyright 2010, 2011, 2012, 2013 Markus Gesmann, Diego de Castillo
### It is made available under the terms of the GNU General Public
### License, version 2, or at your option, any later version,
### incorporated herein by reference.
###
### This program 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 this program; if not, write to the Free
### Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
### MA 02110-1301, USA
gvisOrgChart <- function(data, idvar="", parentvar="", tipvar="", options=list(), chartid){
my.type <- "OrgChart"
dataName <- deparse(substitute(data))
my.options <- list(gvis=modifyList(list(width = 600, height=400), options),
dataName=dataName,
data=list(idvar=idvar, parentvar=parentvar, tipvar=tipvar,
allowed=c("string"))
)
checked.data <- gvisCheckOrgChartData(data, my.options)
output <- gvisChart(type=my.type, checked.data=checked.data, options=my.options, chartid)
return(output)
}
## plot(gvisOrgChart(Regions))
## plot(gvisOrgChart(Regions, options=list(width=600, height=400, size='large', allowCollapse=TRUE)))
gvisCheckOrgChartData <- function(data, options){
data.structure <- list(
idvar = list(mode="required",FUN=check.char),
parentvar = list(mode="required",FUN=check.char),
tipvar = list(mode="required",FUN=check.char))
x <- gvisCheckData(data=data,options=options,data.structure=data.structure)
# is there parent for every id?
parent.match.id <- x[[2]][!(x[[2]] %in% x[[1]])]
if (sum(is.na(parent.match.id))!=1 || length(parent.match.id)!=1){
stop("parentvar and idvar do not fit together.")
}
return(data.frame(x))
}
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