tempDayprob | R Documentation |
Calculates the first day in the year where the probability of temperature over a threshold is higher than a predefined threshold.
tempDayprob( mx, dates, iniday = "01-01", endday = "09-01", type = "doy", thres = 35, prob = 0.1 )
mx |
vector of daily (usually maximum) temperature series. |
dates |
vector of dates corresponding with daily temprature series |
iniday |
first day of the year ("dd-mm-YYYY") when frost occurrence will be considered. |
endday |
last day of the year ("dd-mm-YYYY") when frost occurrence will be considered. |
type |
type of output. It can be "doy" for day of the year (julian day) or "date" for data format ("dd-mm"). |
thres |
temperature threshold considered to trigger frost occurrence (0 by default). |
prob |
numeric. Threshold indicating the probability (0.10 by default) |
The function is able to span over years. If the argument "enddate" is a date earlier than "inidate", the considered period will cover from "inidate" to the end of the year and from the beginning of the next year to "enddate".#' @return depending on argument type, the output will be a numeric vector of julian days (type = "doy") or a vector of characters with dates (type = "date").
A numeric vector with annual values is returned.
tempDayprob(mx = daily_tmax, dates = seq.Date(as.Date('1981-01-01'), as.Date('2010-12-31'), by ='day'), iniday = '01-01', endday = '09-01', type = 'date', prob = 0.10)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.