wavethresh (version 4.6.1)

compare.filters: Compares two filters.

Description

Compares two filters (such as those returned from filter.select). This function returns TRUE is they are the same otherwise returns FALSE.

Usage

compare.filters(f1,f2)

Arguments

f1

Filter, such as that returned by filter.select

f2

Filter, such as that returned by filter.select

Value

• If f1 and f2 are the same the function returns TRUE, otherwise it returns FALSE.

RELEASE

Version 3.9 Copyright Guy Nason 1998

Details

A very simple function. It only needs to check that the family and filter.number components of the filter are the same.

See Also

filter.select.

Examples

#
# Create three filters!
#
filt1 <- filter.select(4, family="DaubExPhase")
filt2 <- filter.select(3, family="DaubExPhase")
filt3 <- filter.select(4, family="DaubLeAsymm")
#
# Now let us see if they are the same...
#
compare.filters(filt1, filt2)
# [1] FALSE
compare.filters(filt1, filt3)
# [1] FALSE
compare.filters(filt2, filt3)
# [1] FALSE
#
# Nope, (what a surprise) they weren't. How about
#
compare.filters(filt1, filt1)
# [1] TRUE
#
# Yes, they were the same!