calc.perf {callsync}

calc.perf

Description

Calculates the performance of the detections. Detections are true positive if they overlap to any extend with a ground truth selection.

Usage

calc.perf(d, gt)

Arguments

d

data frame, detection selection table with start = start time in seconds, end = end time in seconds and file = file name

gt

data frame, ground truth selection table with start = start time in seconds, end = end time in seconds and file = file name

Value

Returns a named list with tp = the row numbers (in d) for the true positives, fp = the row numbers (in d) for the false positives, fn = the row numbers (in gt) for the false negatives, fp_rate = 'length(fp)/nrow(d)', tp_rate = 'length(tp)/nrow(gt)', fn_rate = 'length(fn)/nrow(gt)'.

Examples

require(callsync)
require(seewave)
require(tuneR)
path_git = 'https://raw.githubusercontent.com'
path_repo = '/simeonqs/callsync/master/tests/testthat/files'
file_1 = '/audacity/chunk_15_ground_truth.txt'
url_1 = paste0(path_git, path_repo, file_1)
local_dir = paste(tempdir(), 'audacity', sep = '/')
local_file_1 = paste(tempdir(), file_1, sep = '/')
if(!dir.exists(local_dir)) dir.create(local_dir)
if(!file.exists(local_file_1))
  download.file(url_1, destfile = local_file_1, mode = 'wb',)
d = load.selection.tables.audacity(path_selection_tables = local_dir)
result = calc.perf(d, d)