wmd: Calculates the weighted mean day for abundance dataset

Description Usage Arguments Details Value Author(s) See Also Examples

View source: R/wmd.R

Description

Calculates the weighted mean day of an abundance dataset by weigthing the days according to the observances on that day.

Usage

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Arguments

data

data.frame; abundance data, with one column of date objects and one with numeric values.

CheckData

logical; If TRUE the function will check the data input whether it fits the requirements using the CheckData function. If FALSE it will process without, which might result in wrong results so to use the default value (TRUE) is strongly recommended.

Details

Calculates the weighted mean day of an abundance dataset by weigthing the days according to the observances on that day. This is accomplished by using the mena function on an vector created by the CountsToDrawing function.

Value

A vector where each date in the input data.frame is stored in as many times as there are counts in the same row in the numeric column.

Author(s)

Florian Berger <florian_berger@ymail.com>

See Also

scale

Examples

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a     <- c(1:10)
dates <- as.Date(a, origin = '2017-01-01')
count <- c(1,1,3,4,6,9,5,4,2,1)
dat   <- data.frame(dates, count)
wmd(dat)

biometry/phenologicalOverlap documentation built on May 21, 2019, 2:31 a.m.