1 2# Rmetrics is free software; you can redistribute it and/or 3# modify it under the terms of the GNU Library General Public 4# License as published by the Free Software Foundation; either 5# version 2 of the License, or (at your option) any later version. 6# 7# Rmetrics is distributed in the hope that it will be useful, 8# but WITHOUT ANY WARRANTY; without even the implied warranty of 9# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10# GNU Library General Public License for more details. 11# 12# You should have received a copy of the GNU Library General 13# Public License along with this library; if not, write to the 14# Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, 15# MA 02111-1307 USA 16 17 18################################################################################ 19 20 21test.lag <- 22function() 23{ 24 # RUnit Test: 25 26 tS = round(dummySeries(flormat = "counts"), 3)[, 1] 27 tS 28 lag(tS) 29 lag(tS, k = -2:2) 30 lag(tS, k = -2:2, trim = TRUE) 31 32 tS = round(dummySeries(), 3)[, 1] 33 tS 34 lag(tS) 35 lag(tS, k = -2:2) 36 lag(tS, k = -2:2, trim = TRUE) 37 38 39 # check colnames when using multiple lag indexes. 40 data <- matrix(runif(12), ncol = 2) 41 charvec <- rev(paste("2009-0", 1:6, "-01", sep = "")) 42 S <- timeSeries(data, charvec) 43 colnames(S) <- paste("S", 1:2, sep = ".") 44 ts <- lag(S, -1:1) 45 checkIdentical(colnames(ts), c("S.1[-1]", "S.1[0]", "S.1[1]", "S.2[-1]", 46 "S.2[0]", "S.2[1]")) 47 48} 49 50 51 52################################################################################ 53 54