[R] gantt chart for dataset

[rajclinasia]

hi,
Thanks for responding of gantt charts. but i have some problem regarding
with gantt charts. i.e.

Ymd.format <- "%Y/%m/%d" 

Ymd <- function(x){ as.POSIXct(strptime(x, format=Ymd.format))} 
gantt.info <- list( 
  labels     =c("First task","Second task","Third task","Fourth task","Fifth
task"), 
  starts    
=Ymd(c("2004/01/01","2004/02/02","2004/03/03","2004/05/05","2004/09/09")),
  ends      
=Ymd(c("2004/03/03","2004/05/05","2004/05/05","2004/08/08","2004/12/12")),
  priorities =c(1,2,3,4,5))

gantt.chart(gantt.info,main="Calendar date Gantt chart")

the above code is fworking for individual varibale, that variables we have
to specify manually for each variable.

but my question is assume that above data stored in a excel file 'sample'.
now i want gantt chart for the 'sample' dataset.

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