vpr_roi_concentration: Calculate VPR concentrations

In Echisholm21/vprr: Processing and Visualization of Video Plankton Recorder Data

Calculate VPR concentrations

Description

Calculates concentrations for each named category in dataframe

Usage

vpr_roi_concentration(
  data,
  category_list,
  station_of_interest,
  binSize,
  imageVolume,
  rev = FALSE
)

Arguments

data	a VPR dataframe as produced by vpr_ctdroi_merge
category_list	a vector of character strings representing category present in the station being processed
station_of_interest	The station being processed
binSize	passed to bin_calculate, determines size of depth bins over which data is averaged
imageVolume	the volume of VPR images used for calculating concentrations (mm^3)
rev	Logical value defining direction of binning, FALSE (default) - bins will be calculated from surface to bottom, TRUE- bins will be calculated bottom to surface

Examples

data('ctd_roi_merge')
ctd_roi_merge$time_hr <- ctd_roi_merge$time_ms /3.6e+06

category_list <- c('Calanus', 'krill')
binSize <- 5
station_of_interest <- 'test'
imageVolume <- 83663

category_conc_n <- vpr_roi_concentration(ctd_roi_merge, category_list,
station_of_interest, binSize, imageVolume)

Echisholm21/vprr documentation built on Feb. 9, 2025, 4:21 p.m.