obr object.obr.RdConstructor for an obr object.
obr(year, samp_depth, num_defol, perc_defol, num_max_defol, perc_max_defol, mean_gsi, mean_ngsi, outbreak_status)
| year | An n-length numeric vector of observed years. |
|---|---|
| samp_depth | An n-length numeric vector of the number of trees. |
| num_defol | An n-length numeric vector of the number of trees experiencing defoliation. |
| perc_defol | An n-length numeric vector of the percent of trees experiencing defoliation. |
| num_max_defol | An n-length numeric vector of the number of trees experiencing their maximum level of defoliation (i.e., their most extreme negative growth departure). |
| perc_max_defol | An n-length numeric vector of the percent of trees experiencing their maximum level of defoliation (i.e., their most extreme negative growth departure). |
| mean_gsi | An n-length numeric vector of the average growth suppression index across all observed trees. |
| mean_ngsi | An n-length numeric vector of the average normalized (scaled) growth suppression index. |
| outbreak_status | An n-length factor or character vector that identified
whether that year surpasses the designated thresholds for an "outbreak
event". Threshold criteria are provided in |
An obr object with columns matching the input variables.