get.smooth {tempR}

Convenience function for curve smoothing

Description

Smooth TCATA curves, constraining smooth within low.bound and up.bound.

Usage

get.smooth(y, w = NULL, spar = 0.5, low.bound = 0, up.bound = 1)

Arguments

y

the vector of proportions (or counts) to be smoothed. If a data frame is provided then smoothing is conducted on each row.

w

an optional vector of weights; see smooth.spline

spar

smoothing parameter; see smooth.spline

low.bound

lower bound for smoothed proportions

up.bound

upper bound for smoothed proportions

Value

out smoothed vector (or data frame with smoothed rows)

References

Castura, J.C., Antúnez, L., Giménez, A., Ares, G. (2016). Temporal check-all-that-apply (TCATA): A novel temporal sensory method for characterizing products. Food Quality and Preference, 47, 79-90. doi:10.1016/j.foodqual.2015.06.017

See Also

smooth.spline, predict

Examples

# example using 'syrah' data set
low1 <- t(syrah[seq(3, 1026, by = 6), -c(1:4)])
colnames(low1) <- 10:180
x <- get.smooth(low1)
round(x, 3)