diff options
Diffstat (limited to 'lib/postrunner/HRV_Analyzer.rb')
| -rw-r--r-- | lib/postrunner/HRV_Analyzer.rb | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/lib/postrunner/HRV_Analyzer.rb b/lib/postrunner/HRV_Analyzer.rb index 8375a9b..664f7c9 100644 --- a/lib/postrunner/HRV_Analyzer.rb +++ b/lib/postrunner/HRV_Analyzer.rb @@ -130,6 +130,14 @@ module PostRunner private def collect_rr_intervals + # The rr_intervals Array stores the beat-to-beat time intervals (R-R). + # If one or move beats have been skipped during measurement, a nil value + # is inserted. + @rr_intervals = [] + # The timestamps Array stores the relative (to start of sequence) time + # for each interval in the rr_intervals Array. + @timestamps = [] + # Each Fit4Ruby::HRV object has an Array called 'time' that contains up # to 5 R-R interval durations. If less than 5 are present, they are # filled with nil. @@ -137,19 +145,12 @@ module PostRunner @fit_file.hrv.each do |hrv| raw_rr_intervals += hrv.time.compact end + return if raw_rr_intervals.empty? window = 20 intro_mean = raw_rr_intervals[0..4 * window].reduce(:+) / (4 * window) predictor = LinearPredictor.new(window, intro_mean) - # The rr_intervals Array stores the beat-to-beat time intervals (R-R). - # If one or move beats have been skipped during measurement, a nil value - # is inserted. - @rr_intervals = [] - # The timestamps Array stores the relative (to start of sequence) time - # for each interval in the rr_intervals Array. - @timestamps = [] - # The timer accumulates the interval durations. timer = 0.0 raw_rr_intervals.each do |dt| |