[R] Date format conversion from "2012-09-20" to "2012:09:20"

[veepsirtt]

Hi R,
How to get the range of values form startDate to lastDate as given below?.

#*****************************************************************
# Load historical data
#****************************************************************** 
library('quantmod')
endDate =Sys.Date()
startDate = as.Date(endDate-30, order="ymd")

dataspy = getSymbols("SPY", from = startDate, to=endDate, auto.assign =
FALSE)
lastDate=startDate+5

#subset first 5 days
dataspy['startDate::lastDate']
print(dataspy)

Thanks
veepsirtt




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