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

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> x <- c(83.87
+ ,84.23
+ ,84.61
+ ,84.82
+ ,85.04
+ ,85.06
+ ,84.93
+ ,84.98
+ ,85.23
+ ,85.30
+ ,85.33
+ ,85.55
+ ,85.70
+ ,85.88
+ ,86.04
+ ,86.07
+ ,86.31
+ ,86.38
+ ,86.35
+ ,86.55
+ ,86.70
+ ,86.74
+ ,86.85
+ ,86.95
+ ,86.80
+ ,87.01
+ ,87.17
+ ,87.43
+ ,87.66
+ ,87.68
+ ,87.59
+ ,87.65
+ ,87.72
+ ,87.70
+ ,87.71
+ ,87.80
+ ,87.62
+ ,87.84
+ ,88.17
+ ,88.47
+ ,88.58
+ ,88.57
+ ,88.55
+ ,88.68
+ ,88.79
+ ,88.85
+ ,88.95
+ ,89.27
+ ,89.09
+ ,89.42
+ ,89.72
+ ,89.85
+ ,89.96
+ ,90.25
+ ,90.20
+ ,90.27
+ ,90.78
+ ,90.79
+ ,90.98
+ ,91.25
+ ,90.75
+ ,91.01
+ ,91.50
+ ,92.09
+ ,92.56
+ ,92.66
+ ,92.38
+ ,92.38
+ ,92.66
+ ,92.69
+ ,92.59
+ ,92.98
+ ,92.98
+ ,93.15
+ ,93.65
+ ,94.06
+ ,94.24
+ ,94.24
+ ,94.11
+ ,94.16
+ ,94.43
+ ,94.67
+ ,94.60
+ ,95.00
+ ,94.84
+ ,95.26
+ ,95.81
+ ,95.92
+ ,95.85
+ ,95.90
+ ,95.80
+ ,96.00
+ ,96.34
+ ,96.43
+ ,96.48
+ ,96.75
+ ,96.51
+ ,96.69
+ ,97.28
+ ,97.69
+ ,98.08
+ ,98.09
+ ,97.92
+ ,98.06
+ ,98.23
+ ,98.57
+ ,98.53
+ ,98.92
+ ,98.42
+ ,98.73
+ ,99.32
+ ,99.73
+ ,100.00
+ ,100.08
+ ,100.02
+ ,100.26
+ ,100.71
+ ,100.95
+ ,100.75
+ ,101.03
+ ,100.64
+ ,100.93
+ ,101.41
+ ,102.07
+ ,102.42
+ ,102.53
+ ,102.43
+ ,102.60
+ ,102.65
+ ,102.74
+ ,102.82
+ ,103.21
+ ,102.75
+ ,103.09
+ ,103.71
+ ,104.30
+ ,104.58
+ ,104.71
+ ,104.44
+ ,104.57
+ ,104.95
+ ,105.49
+ ,106.03
+ ,106.48
+ ,106.25
+ ,106.70
+ ,107.60
+ ,108.05
+ ,108.72
+ ,109.17
+ ,109.08
+ ,109.04
+ ,109.34
+ ,109.37
+ ,108.96
+ ,108.77
+ ,108.11
+ ,108.67
+ ,109.05
+ ,109.43
+ ,109.62
+ ,109.85
+ ,109.34
+ ,109.65
+ ,109.69
+ ,109.91
+ ,110.09)
> par4 = '12'
> par3 = '1'
> par2 = '1'
> par1 = '-1.0'
> par1 <- as.numeric(par1)
> par2 <- as.numeric(par2)
> par3 <- as.numeric(par3)
> par4 <- as.numeric(-3)
> if (par1 == 0) {
+ x <- log(x)
+ } else {
+ x <- (x ^ par1 - 1) / par1
+ }
> if (par2 > 0) x <- diff(x,lag=1,difference=par2)
> if (par3 > 0) x <- diff(x,lag=par4,difference=par3)
Error in diff.default(x, lag = par4, difference = par3) : 
  'lag' and 'differences' must be integers >= 1
Calls: diff -> diff.default
Execution halted