function to calculate yearly mean, min or max of a data.frame
Usage
yearly(
data,
time = "date",
stat = mean,
min_offset = 0,
hour_offset = 0,
days_offset = 0,
month_offset = 0,
numerical = TRUE,
verbose = TRUE
)Arguments
- data
data.frame with time column and variable columns to be processed
- time
name of the time column (default is date) in POSIXct
- stat
function of the statistics to calculate (default is mean)
- min_offset
minutes of observation from previous year (default is 0)
- hour_offset
hours of observation from previous year (default is 0)
- days_offset
day of observation from previous year (default is 0)
- month_offset
months of observation from previous year (default is 0)
- numerical
TRUE (default) include only numerical columns
- verbose
display additional information
Examples
times <- seq(as.POSIXct('2024-01-01',tz = 'UTC'),
as.POSIXct('2025-12-31',tz = 'UTC'),
by = 'day')
DATA <- data.frame(date = times,
var1 = rnorm(n = length(times), mean = 1,sd = 1),
var2 = rnorm(n = length(times), mean = 2,sd = 0.5),
var3 = rnorm(n = length(times), mean = 3,sd = 0.25))
data_year_mean <- yearly(DATA)
#> processing yearly statistcis ...
data_year_min <- yearly(DATA,stat = min)
#> processing yearly statistcis ...
data_year_max <- yearly(DATA,stat = max)
#> processing yearly statistcis ...