create the delta ball associated with points

create_delta_ball_structure(
  data_points,
  data_columns = NULL,
  .lower_simplex_project = TRUE
)

Arguments

data_points	points to create the delta ball structure from
data_columns	columns of data.frame that relate to the point's coordinates in euclidean space. This should be at least 3 columns (else it doesn't really make sense to use this function). The input should look like something like `c(S,I,R)` or `c("S", "I", "R")`. If the input is `NULL` this function will treat this like `dplyr::everything()`.
.lower_simplex_project	boolean, if data points should be projected to a simplex and then to the lower dimensional simplex (for this package, this should always be done)

Value

a delta_ball_structure object, that is a data frame similar to data_points (but with out data_columns columns) and distinct points. This object also has an delta attribute which contains the delta defining the delta ball.

Examples

library(dplyr)
delta_ball_cb <- EpiCompare::pomp_df %>%
  filter(.id <= 10) %>%
  arrange(time) %>% # just to be safe
  select(-time, -H, -cases) %>%
  group_by(.id) %>%
  grab_top_depth_filaments(conf_level = .9) %>%
  create_delta_ball_structure() #data_columns = c(S,I,R)