#
#
# Written by:
# -- 
# John L. Weatherwax                2009-04-21
# 
# email: wax@alum.mit.edu
# 
# Please send comments and especially bug reports to the
# above email address.
# 
#-----

# fix the random.seed, so I'll always get the same answer:
set.seed(10131985)

x = rnorm(10)
x

indsLT = x < -0.25 # less than -0.25 
indsLT

indsGT = x > +0.25 # greater than +0.25 
indsGT

indsLT | indsGT # all points such that abs(value)>0.25
indsLT & indsGT # no points (all elements FALSE)

# return "or" of first element (indsLT[1]=TRUE) *or* (indsGT[1]=FALSE) = TRUE 
indsLT || indsGT 

# return "and" of first element (indsLT[1]=TRUE) *and* (indsGT[1]=FALSE) = FALSE
indsLT && indsGT