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SA

*The author of this computation has been verified*
R Software Module: rwasp_spectrum.wasp (opens new window with default values)
Title produced by software: Spectral Analysis
Date of computation: Wed, 10 Dec 2008 07:08:07 -0700
 
Cite this page as follows:
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2008/Dec/10/t1228918114rtjpd79n4z04wiy.htm/, Retrieved Wed, 10 Dec 2008 14:08:34 +0000
 
BibTeX entries for LaTeX users:
@Manual{KEY,
    author = {{YOUR NAME}},
    publisher = {Office for Research Development and Education},
    title = {Statistical Computations at FreeStatistics.org, URL http://www.freestatistics.org/blog/date/2008/Dec/10/t1228918114rtjpd79n4z04wiy.htm/},
    year = {2008},
}
@Manual{R,
    title = {R: A Language and Environment for Statistical Computing},
    author = {{R Development Core Team}},
    organization = {R Foundation for Statistical Computing},
    address = {Vienna, Austria},
    year = {2008},
    note = {{ISBN} 3-900051-07-0},
    url = {http://www.R-project.org},
}
 
Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
 
Feedback Forum:
2008-11-27 13:41:43 [a2386b643d711541400692649981f2dc] [reply] 
test

Post a new message
 
Original text written by user:
 
IsPrivate?
No (this computation is public)
 
User-defined keywords:
 
Dataseries X:
» Textbox « » Textfile « » CSV «
632 1270 1211 1469 2570 2765 2487 3644 2501 1629 987 1100 690 1378 1376 1736 2800 2671 2508 3590 2691 1629 1020 1224 787 1424 1232 2021 2782 2682 3284 3194 2736 1701 1089 1240 799 1163 1180 1960 2914 2658 3254 3222 2987 1604 1032 1283 774 1109 1453 1849 2800 3310 3060 3422 3448 1670 1022 1391 767 1172 1498 1623 2646 3439
 
Output produced by software:


Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time3 seconds
R Server'Herman Ole Andreas Wold' @ 193.190.124.10:1001


Raw Periodogram
ParameterValue
Box-Cox transformation parameter (lambda)0.2
Degree of non-seasonal differencing (d)0
Degree of seasonal differencing (D)1
Seasonal Period (s)12
Frequency (Period)Spectrum
0.0185 (54)0.179002
0.037 (27)0.210672
0.0556 (18)0.009203
0.0741 (13.5)0.138182
0.0926 (10.8)0.054051
0.1111 (9)0.146775
0.1296 (7.7143)0.009921
0.1481 (6.75)0.146505
0.1667 (6)0.017741
0.1852 (5.4)0.13379
0.2037 (4.9091)0.186486
0.2222 (4.5)0.073543
0.2407 (4.1538)0.0889
0.2593 (3.8571)0.067592
0.2778 (3.6)0.007115
0.2963 (3.375)0.285879
0.3148 (3.1765)0.396958
0.3333 (3)0.325026
0.3519 (2.8421)1.005013
0.3704 (2.7)0.000723
0.3889 (2.5714)0.303952
0.4074 (2.4545)0.115117
0.4259 (2.3478)0.165
0.4444 (2.25)0.07472
0.463 (2.16)0.085362
0.4815 (2.0769)0.165042
0.5 (2)0.129178
 
Charts produced by software:
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Dec/10/t1228918114rtjpd79n4z04wiy/1clrz1228918082.png (open in new window)
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Dec/10/t1228918114rtjpd79n4z04wiy/1clrz1228918082.ps (open in new window)


http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Dec/10/t1228918114rtjpd79n4z04wiy/20pai1228918082.png (open in new window)
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Dec/10/t1228918114rtjpd79n4z04wiy/20pai1228918082.ps (open in new window)


 
Parameters (Session):
par1 = 0.2 ; par2 = 0 ; par3 = 1 ; par4 = 12 ;
 
Parameters (R input):
par1 = 0.2 ; par2 = 0 ; par3 = 1 ; par4 = 12 ;
 
R code (references can be found in the software module):
par1 <- as.numeric(par1)
par2 <- as.numeric(par2)
par3 <- as.numeric(par3)
par4 <- as.numeric(par4)
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)
bitmap(file='test1.png')
r <- spectrum(x,main='Raw Periodogram')
dev.off()
bitmap(file='test2.png')
cpgram(x,main='Cumulative Periodogram')
dev.off()
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Raw Periodogram',2,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Parameter',header=TRUE)
a<-table.element(a,'Value',header=TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Box-Cox transformation parameter (lambda)',header=TRUE)
a<-table.element(a,par1)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Degree of non-seasonal differencing (d)',header=TRUE)
a<-table.element(a,par2)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Degree of seasonal differencing (D)',header=TRUE)
a<-table.element(a,par3)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Seasonal Period (s)',header=TRUE)
a<-table.element(a,par4)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Frequency (Period)',header=TRUE)
a<-table.element(a,'Spectrum',header=TRUE)
a<-table.row.end(a)
for (i in 1:length(r$freq)) {
a<-table.row.start(a)
mylab <- round(r$freq[i],4)
mylab <- paste(mylab,' (',sep='')
mylab <- paste(mylab,round(1/r$freq[i],4),sep='')
mylab <- paste(mylab,')',sep='')
a<-table.element(a,mylab,header=TRUE)
a<-table.element(a,round(r$spec[i],6))
a<-table.row.end(a)
}
a<-table.end(a)
table.save(a,file='mytable.tab')
 




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Software written by Ed van Stee & Patrick Wessa


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