https://github.com/cran/fields
Tip revision: 0e907b753ec64087937eb5f1a0fb8ecf1c369b29 authored by Douglas Nychka on 02 September 2020, 21:40:21 UTC
version 11.4
version 11.4
Tip revision: 0e907b7
misc.test.R
# fields is a package for analysis of spatial data written for
# the R software environment .
# Copyright (C) 2018
# University Corporation for Atmospheric Research (UCAR)
# Contact: Douglas Nychka, nychka@ucar.edu,
# National Center for Atmospheric Research,
# PO Box 3000, Boulder, CO 80307-3000
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
suppressMessages(library(fields))
options( echo=FALSE)
set.seed( 234)
test.for.zero.flag<-1
y<- runif( 30)
lev<- sort(sample( 1:5,30, replace=TRUE))
w<- runif( 30)*.1+1
y<- as.matrix(y)
# compute by loop
hold<- rep( NA, 5)
for( k in 1:5){
ind<- lev==k
hold[k]<- sum( y[ind,]*w[ind])/ sum( w[ind])}
look<- fast.1way( lev, y, w)
test.for.zero( look$means, hold, tag="fast.1way means")
# now vectorized case
ytemp<- cbind( y, y-10, y+10)
look2<- fast.1way( lev, ytemp, w)
test.for.zero( look2$means[,2], hold-10, tag="fast.1way vectorized means")
cat("All done with testing misc functions", fill=TRUE)
options(echo=TRUE)