Create a summary table of AMBI category percentages by bay segment

Usage

show_ambitab(
  ambiscr,
  bay_segment = c("OTB", "HB", "MTB", "LTB", "TCB", "MR", "BCB"),
  yrrng = c(1993, 2024)
)

Arguments

ambiscr: input data frame as returned by anlz_ambiscr, the AMBI variant is detected automatically from the column names
bay_segment: chr string for the bay segment, one to many of "OTB", "HB", "MTB", "LTB", "TCB", "MR", "BCB"
yrrng: numeric vector of length two indicating the year range to summarise

Value

A flextable object showing the count and percentage of sites in each AMBI category by bay segment over the requested year range. The bottom row ("All") summarises across all included bay segments.

Details

Only sampling funded by TBEP and as part of the routine EPC benthic monitoring program are included. Azoic stations are excluded from counts and percentages. The year range filter applies to all years from yrrng[1] through yrrng[2].

Column header colours match those used in show_ambimatrix: Unpolluted (dark green), Slightly Polluted (light green), Meanly Polluted (yellow), Heavily Polluted (orange), and Extremely Polluted (red).

Examples

ambiscr <- anlz_ambiscr(benthicdata)
show_ambitab(ambiscr)
Segment n Extremely Polluted Heavily Polluted Meanly Polluted Slightly Polluted Unpolluted
OTB 318 1.3% 0.0% 1.3% 85.2% 12.3%
HB 470 4.0% 0.2% 6.4% 88.7% 0.6%
MTB 332 0.3% 0.0% 0.0% 84.6% 15.1%
LTB 258 0.0% 0.0% 0.0% 85.3% 14.7%
TCB 129 0.0% 0.8% 1.6% 90.7% 7.0%
MR 237 0.0% 0.0% 1.3% 97.0% 1.7%
BCB 365 1.6% 0.5% 1.9% 91.5% 4.4%
All 2,109 1.4% 0.2% 2.2% 88.7% 7.5%

Segment	n	Extremely Polluted	Heavily Polluted	Meanly Polluted	Slightly Polluted	Unpolluted
OTB	318	1.3%	0.0%	1.3%	85.2%	12.3%
HB	470	4.0%	0.2%	6.4%	88.7%	0.6%
MTB	332	0.3%	0.0%	0.0%	84.6%	15.1%
LTB	258	0.0%	0.0%	0.0%	85.3%	14.7%
TCB	129	0.0%	0.8%	1.6%	90.7%	7.0%
MR	237	0.0%	0.0%	1.3%	97.0%	1.7%
BCB	365	1.6%	0.5%	1.9%	91.5%	4.4%
All	2,109	1.4%	0.2%	2.2%	88.7%	7.5%