Description Usage Arguments Details References Examples
View source: R/accipiter_age.R
Northern Goshawk age is estimated based on a standard growth curve modeled from published data by Bijlsma, G. 1997: Handleiding veldonderzoek roofvogels. KNNV Uitgeverij
1 2 3 4 5 6 7 8 9 | accipiter_age(
df = NULL,
wing = "wing",
sex = "sex",
unit = c("mm", "cm"),
.plot = F,
decimals = 2,
.show_model = T
)
|
df |
data frame containing data |
wing |
column name for wing measurements |
sex |
column name giving the sex of individuals or NULL |
unit |
unit of values. By default in mm |
.plot |
logical |
decimals |
decimals |
.show_model |
logical |
Estimations are based on a four degree polynomial fit
Bijlsma, G. 1997: Handleiding veldonderzoek roofvogels. KNNV Uitgeverij
1 2 3 | ## 240 mm wing length
# accipiter_age(data.frame(wing = c(240,240), sex = c("male","female")))
# accipiter_age(data.frame(wing = c(240,240), sex = c(1,0)))
|
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