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autocorrelation dollar

R Software Module: rwasp_autocorrelation.wasp (opens new window with default values)
Title produced by software: (Partial) Autocorrelation Function
Date of computation: Fri, 30 Nov 2007 01:54:38 -0700
 
Cite this page as follows:
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2007/Nov/30/t1196412260sjzukvbr9km42k9.htm/, Retrieved Fri, 30 Nov 2007 09:44:22 +0100
 
User-defined keywords:
autocorrelation dollar
 
Dataseries X:
» Textbox « » Textfile « » CSV «
0.9383 0.9217 0.9095 0.892 0.8742 0.8532 0.8607 0.9005 0.9111 0.9059 0.8883 0.8924 0.8833 0.87 0.8758 0.8858 0.917 0.9554 0.9922 0.9778 0.9808 0.9811 1.0014 1.0183 1.0622 1.0773 1.0807 1.0848 1.1582 1.1663 1.1372 1.1139 1.1222 1.1692 1.1702 1.2286 1.2613 1.2646 1.2262 1.1985 1.2007 1.2138 1.2266 1.2176 1.2218 1.249 1.2991 1.3408 1.3119 1.3014 1.3201 1.2938 1.2694 1.2165 1.2037 1.2292 1.2256 1.2015 1.1786 1.1856 1.2103 1.1938 1.202 1.2271 1.277 1.265 1.2684 1.2811 1.2727 1.2611 1.2881 1.3213
 
Text written by user:
 
Output produced by software:


Summary of compuational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'Gwilym Jenkins' @ 72.249.127.135


Autocorrelation Function
Time lag kACF(k)T-STATP-value
018.42610
10.3436162.89540.002515
2-0.094715-0.79810.786259
3-0.175819-1.48150.928548
40.0552890.46590.321366
5-0.007435-0.06260.524887
6-0.156075-1.31510.903648
70.0006780.00570.49773
80.1109280.93470.176558
90.1496611.26110.105706
100.1258321.06030.146306
110.0702290.59180.277944
12-0.045382-0.38240.648346
13-0.086769-0.73110.766447
14-0.107295-0.90410.815496
15-0.157479-1.32690.905611
16-0.160103-1.34910.909197
170.1083160.91270.182248
180.1151950.97070.167508
190.0457410.38540.35054
20-0.093903-0.79120.784281
21-0.043852-0.36950.643574
22-0.045821-0.38610.64971
23-0.195752-1.64940.948262
24-0.151584-1.27730.897165
25-0.152833-1.28780.899
26-0.015977-0.13460.553354
270.0704060.59330.277449
280.0936030.78870.216452
290.0659020.55530.290218
30-0.053343-0.44950.672772
31-0.07487-0.63090.734923
32-0.165117-1.39130.915761
33-0.191737-1.61560.944693
34-0.082811-0.69780.756203
350.0039370.03320.486816


Partial Autocorrelation Function
Time lag kPACF(k)T-STATP-value
00.3436162.89540.002515
1-0.241275-2.0330.977105
2-0.063226-0.53280.702067
30.1559651.31420.096507
4-0.158803-1.33810.907433
5-0.118724-1.00040.83974
60.1823321.53640.064447
7-0.029654-0.24990.598296
80.0876750.73880.231244
90.1682611.41780.080312
10-0.037324-0.31450.622968
11-0.072641-0.61210.728781
120.0466340.39290.347767
13-0.130423-1.0990.862252
14-0.151617-1.27760.897215
15-0.028309-0.23850.593925
160.1812261.5270.065597
17-0.163945-1.38140.91426
180.0596160.50230.308493
19-0.036875-0.31070.621536
20-0.111851-0.94250.825427
21-0.018067-0.15220.560285
22-0.107718-0.90760.816433
23-0.040404-0.34050.63274
24-0.144434-1.2170.886187
250.039530.33310.370026
260.052520.44250.329721
27-0.082592-0.69590.755628
280.095740.80670.21126
29-0.065129-0.54880.707564
30-0.097815-0.82420.793707
31-0.083914-0.70710.759083
32-0.04732-0.39870.654353
33-0.041311-0.34810.635598
34-0.054988-0.46330.677729
35-0.113487-0.95630.828908
 
Charts produced by software:
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2007/Nov/30/t1196412260sjzukvbr9km42k9/1crl91196412876.png (open in new window)
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2007/Nov/30/t1196412260sjzukvbr9km42k9/1crl91196412876.ps (open in new window)


http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2007/Nov/30/t1196412260sjzukvbr9km42k9/2x22k1196412876.png (open in new window)
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2007/Nov/30/t1196412260sjzukvbr9km42k9/2x22k1196412876.ps (open in new window)


 
Parameters:
par1 = 36 ; par2 = 0.0 ; par3 = 1 ; par4 = 0 ; par5 = 12 ;
 
R code (references can be found in the software module):
if (par1 == 'Default') {
par1 = 10*log10(length(x))
} else {
par1 <- as.numeric(par1)
}
par2 <- as.numeric(par2)
par3 <- as.numeric(par3)
par4 <- as.numeric(par4)
par5 <- as.numeric(par5)
if (par2 == 0) {
x <- log(x)
} else {
x <- (x ^ par2 - 1) / par2
}
if (par3 > 0) x <- diff(x,lag=1,difference=par3)
if (par4 > 0) x <- diff(x,lag=par5,difference=par4)
bitmap(file='pic1.png')
racf <- acf(x,par1,main='Autocorrelation',xlab='lags',ylab='ACF')
dev.off()
bitmap(file='pic2.png')
rpacf <- pacf(x,par1,main='Partial Autocorrelation',xlab='lags',ylab='PACF')
dev.off()
(myacf <- c(racf$acf))
(mypacf <- c(rpacf$acf))
lengthx <- length(x)
sqrtn <- sqrt(lengthx)
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Autocorrelation Function',4,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Time lag k',header=TRUE)
a<-table.element(a,hyperlink('http://www.xycoon.com/basics.htm','ACF(k)','click here for more information about the Autocorrelation Function'),header=TRUE)
a<-table.element(a,'T-STAT',header=TRUE)
a<-table.element(a,'P-value',header=TRUE)
a<-table.row.end(a)
for (i in 1:par1) {
a<-table.row.start(a)
a<-table.element(a,i-1,header=TRUE)
a<-table.element(a,round(myacf[i],6))
mytstat <- myacf[i]*sqrtn
a<-table.element(a,round(mytstat,4))
a<-table.element(a,round(1-pt(mytstat,lengthx),6))
a<-table.row.end(a)
}
a<-table.end(a)
table.save(a,file='mytable.tab')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Partial Autocorrelation Function',4,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Time lag k',header=TRUE)
a<-table.element(a,hyperlink('http://www.xycoon.com/basics.htm','PACF(k)','click here for more information about the Partial Autocorrelation Function'),header=TRUE)
a<-table.element(a,'T-STAT',header=TRUE)
a<-table.element(a,'P-value',header=TRUE)
a<-table.row.end(a)
for (i in 1:par1) {
a<-table.row.start(a)
a<-table.element(a,i-1,header=TRUE)
a<-table.element(a,round(mypacf[i],6))
mytstat <- mypacf[i]*sqrtn
a<-table.element(a,round(mytstat,4))
a<-table.element(a,round(1-pt(mytstat,lengthx),6))
a<-table.row.end(a)
}
a<-table.end(a)
table.save(a,file='mytable1.tab')
 





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