get_si_data: Strip survey samples for the desired length or age groups to...
In inspktrgadget/gadgetSim: Create Gadget replicates for use in simulation studies

Description Usage Arguments Value Examples

Easily pick out the data that you want to use for surveyindices

1	get_si_data(data_samples, by = "lengths", groups)

`data_samples`	Data.frame of sampled model output as returned by `survey_gadget`, for example
`by`	Character. Currently either only "lengths" or "ages"
`groups`	Numeric. The values by which to subset `by`

A data.frame of filtered or subsetted data

dat <- expand.grid(year = 1:10, step = 1, area = 1,
                   ages = 1:10, lengths = 1:100)
dat$number <- sample(1:1000, nrow(dat), replace = TRUE)
si_dat <- get_si_data(dat, by = "lengths", groups = 1:20)