plot_time | R Documentation |
Produces an abundance vs time diagram.
plot_time(object, dates, ...)
## S4 method for signature 'data.frame,numeric'
plot_time(object, dates, calendar = get_calendar(), ...)
## S4 method for signature 'matrix,numeric'
plot_time(object, dates, calendar = get_calendar(), ...)
object |
A |
dates |
A |
... |
Further parameters to be passed to |
calendar |
An |
plot_time()
is called it for its side-effects: it results in a graphic
being displayed (invisibly returns object
).
N. Frerebeau
## Data from Crema et al. 2016
data("merzbach", package = "folio")
## Coerce the merzbach dataset to a count matrix
## Keep only decoration types that have a maximum frequency of at least 50
keep <- apply(X = merzbach, MARGIN = 2, FUN = function(x) max(x) >= 50)
counts <- merzbach[, keep]
## Set dates
## We use the row names as time coordinates (roman numerals)
dates <- as.numeric(utils::as.roman(rownames(counts)))
## Plot abundance vs time
plot_time(counts, dates, calendar = NULL, ncol = 3, xlab = "Phases")
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