Nothing
calc_segmentation_magnitude <- function(segmag)
{
# Baut ein Array in das die Segmentierungsstaerke geschrieben wird
# Um jeden Tastendruck wird Gauss gelegt
# Gauss vorberechnet mit cutoff
# Eine VPn jeweils Huellfunktion, damit maximaler Beitrag beschraenkt ist
# Statt in Zeit wird in Indizes des Arrays gerechnet, da schneller geht.. Dazu alle mittels time_steps umgerechnet, also 1 / time_steps Arrayfelder je Sekunde
if (! is.segmag(segmag)) stop("segmag must be an object of class segmag")
# Vektor mit Segmentierungsstaerke ueber Zeit in time_steps als Indizes
segmentation_magnitude_overall <- numeric(segmag$index_time_max+1)
for (id in levels(segmag$ids))
{
index_keypresses <- segmag$index_keypresses[segmag$ids == id]
calc_segmentation_magnitude_impl(segmentation_magnitude_overall,index_keypresses,segmag$gauss_values,segmag$gauss_n_indexes_per_side,segmag$indexes_gauss_offset)
}
# as.numeric(as.character()) and plyr::round_any: Fix floating point issue causing problems in addressing specific time points (round_any and as.numeric(as.character()) fix different occurances of the issue)
# Example:
# tmp <- segmag(factor(c(1)),c(0),gauss_sd = 0.8)
# tmp$data$segmentation_magnitude[tmp$data$time==0.00]
# Before Fix returns: numeric(0)
# After Fix returns: [1] 0.4986779
return( data.frame(
time=as.numeric(as.character(
plyr::round_any(
seq(
segmag$time_min,
segmag$time_min + (segmag$index_time_max*segmag$time_steps),
segmag$time_steps
),
segmag$time_steps
)
)),
segmentation_magnitude=segmentation_magnitude_overall)
)
}
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