R version 2.9.0 (2009-04-17)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> y <- c(286525,282965,276610,277838,277051,277026,274960,270073,267063,264916,287182,291109,292223,288109,281400,282579,280113,280331,276759,275139,274275,271234,289725,290649,292223,278429,269749,265784,268957,264099,255121,253276,245980,235295,258479,260916,254586,250566,243345,247028,248464,244962,237003,237008,225477,226762,247857,248256,246892,245021,246186,255688,264242,268270,272969,273886,267353,271916,292633,295804,293222)
> x <- c(581000,597000,587000,536000,524000,537000,536000,533000,528000,516000,502000,506000,518000,534000,528000,478000,469000,490000,493000,508000,517000,514000,510000,527000,542000,565000,555000,499000,511000,526000,532000,549000,561000,557000,566000,588000,620000,626000,620000,573000,573000,574000,580000,590000,593000,597000,595000,612000,628000,629000,621000,569000,567000,573000,584000,589000,591000,595000,594000,611000)
> par2 = '36'
> par1 = '0'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: AUTHOR(S), (YEAR), YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: 
> par1 <- as.numeric(par1)
> par2 <- as.numeric(par2)
> x <- as.ts(x)
> y <- as.ts(y)
> mylm <- lm(y~x)
Error in model.frame.default(formula = y ~ x, drop.unused.levels = TRUE) : 
  variable lengths differ (found for 'x')
Calls: lm -> eval -> eval -> model.frame -> model.frame.default
Execution halted