CTV incidence data for three orchards in eastern Spain reported for consecutive years.
citrus_ctv
There are three data frames:
IVI3and4
: A data frame with 864 rows and 5 variables.
IVI6and7
: A data frame with 648 rows and 5 variables.
El_Realengo
: A data frame with 2000 rows and 5 variables.
The structure is the same for all the data frames:
[, 1:2] | x,y | Grid spatial coordinates. |
[, 3] | t | Year of disease assessments. |
[, 4] | i | Disease incidence. 0: Healthy, 1: Diseased. |
[, 5] | n | Sampling unit size. n = 1 means that the sampling unit size is the plant. |
Both IVI3and4
and IVI6and7
orchards consisted of 216 trees each
of Washington navel orange on Troyer citrange planted in 1978 on a 2 x 6-m
spacing. El_Realengo
orchard consisted of 400 Marsh seedless
grapefruit on Troyer citrange planted in 1973 on a 5.5 x 5.5-m spacing.