as.Date1970 {Ecdat} | R Documentation |
as.Date.numeric
requires orgin to be specified. The present
function assumes that this origin is January 1, 1970.
as.Date1970(x, ...)
x |
a numeric vector of dates in days since the start of 1970. |
... |
optional arguments to pass to as.Date. |
Returns a vector of Dates
Spencer Graves
days <- c(0, 1, 365) Dates <- as.Date1970(days) all.equal(c('1970-01-01', '1970-01-02', '1971-01-01'), as.character(Dates)) all.equal(days, as.numeric(Dates))