Get annual medians of Tampa Bay Benthic Index scores by bay segment

Usage

anlz_tbbimed(
  tbbiscr,
  bay_segment = c("HB", "OTB", "MTB", "LTB", "TCB", "MR", "BCB", "All", "All (wt)"),
  rev = FALSE,
  yrrng = c(1993, 2024),
  window = TRUE
)

Arguments

tbbiscr: input data frame as returned by anlz_tbbiscr
bay_segment: chr string for the bay segment, one to many of "HB", "OTB", "MTB", "LTB", "TCB", "MR", "BCB", "All", "All (wt)"
rev: logical if factor levels for bay segments are reversed
yrrng: numeric indicating year ranges to evaluate
window: logical indicating whether to use a rolling 5-year window (default TRUE) or single year values (FALSE) for the bay segment categories, see details

Value

A data frame of annual medians by bay segment

Details

Additional summaries are provided for the entire bay, as a summary across categories ("All") and a summary weighted across the relative sizes of each bay segment ("All (wt)").

Only sampling funded by TBEP and as part of the routine EPC benthic monitoring program are included in the final categories.

The default behavior is to use a rolling five-year window to calculate the percent of sites in each TBBI category by bay segment. This applies only to years 2005 and later, where the counts from the current year and the prior four years are summed to calculate the percentages. This is intended to help smooth out inter-annual variability due to reduced sampling effort from 2005 to present. If window = FALSE, then only single year values are used.

Examples

tbbiscr <- anlz_tbbiscr(benthicdata)
anlz_tbbimed(tbbiscr)
#> # A tibble: 286 × 6
#> # Rowwise: 
#>    bay_segment    yr Degraded Healthy Intermediate TBBICat
#>    <fct>       <dbl>    <dbl>   <dbl>        <dbl> <fct>  
#>  1 All          1993    0.3     0.244        0.456 Poor   
#>  2 All          1994    0.449   0.180        0.371 Poor   
#>  3 All          1995    0.133   0.508        0.359 Fair   
#>  4 All          1996    0.138   0.569        0.292 Fair   
#>  5 All          1997    0.157   0.421        0.421 Fair   
#>  6 All          1998    0.231   0.316        0.453 Poor   
#>  7 All          1999    0.107   0.377        0.516 Fair   
#>  8 All          2000    0.163   0.407        0.430 Fair   
#>  9 All          2001    0.231   0.321        0.449 Poor   
#> 10 All          2002    0.2     0.425        0.375 Poor   
#> # ℹ 276 more rows