| Tukey Random Comp | *The author of this computation has been verified* | R Software Module: rwasp_tukeylambda.wasp (opens new window with default values) | Title produced by software: Tukey lambda PPCC Plot | Date of computation: Sun, 26 Oct 2008 14:23:16 -0600 | | Cite this page as follows: | Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2008/Oct/26/t1225052899dulizyvjgk6nsvg.htm/, Retrieved Sun, 26 Oct 2008 20:28:20 +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/Oct/26/t1225052899dulizyvjgk6nsvg.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: | Post a new message | | Original text written by user: | | | IsPrivate? | No (this computation is public) | | User-defined keywords: | | | Dataseries X: | » Textbox « » Textfile « » CSV « | 338,3622951
617,8622951
261,8622951
490,1622951
546,8622951
389,5622951
441,5622951
346,5622951
393,1622951
567,3622951
461,7622951
531,1622951
486,9622951
495,9622951
347,6622951
493,1622951
550,3622951
470,7622951
414,0622951
470,4622951
371,1622951
535,8622951
506,2622951
631,2622951
526,0622951
560,7622951
400,7622951
640,5622951
605,3622951
624,9622951
473,1622951
567,5622951
449,5622951
605,5622951
485,5622951
739,4622951
415,1622951
571,2622951
408,6622951
540,2622951
594,1622951
423,7622951
425,5622951
416,5622951
534,0622951
757,6622951
467,4622951
609,2622951
504,1622951
739,6622951
716,2622951
476,8622951
708,1622951
556,2622951
507,1622951
484,8622951
441,9622951
423,9622951
386,7622951
354,6622951
195,8622951 | | Output produced by software: |
Tukey Lambda - Key Values | Distribution (lambda) | Correlation | Approx. Cauchy (lambda=-1) | 0.731408571341401 | Exact Logistic (lambda=0) | 0.992200037856586 | Approx. Normal (lambda=0.14) | 0.992102503257452 | U-shaped (lambda=0.5) | 0.980018881027058 | Exactly Uniform (lambda=1) | 0.965422281504803 |
| Charts produced by software: | ![](http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/26/t1225052899dulizyvjgk6nsvg/1t2yg1225052595.png) | http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/26/t1225052899dulizyvjgk6nsvg/1t2yg1225052595.png (open in new window) | http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/26/t1225052899dulizyvjgk6nsvg/1t2yg1225052595.ps (open in new window) |
| | Parameters (Session): | | | Parameters (R input): | | | R code (references can be found in the software module): | gp <- function(lambda, p)
{
(p^lambda-(1-p)^lambda)/lambda
}
sortx <- sort(x)
c <- array(NA,dim=c(201))
for (i in 1:201)
{
if (i != 101) c[i] <- cor(gp(ppoints(x), lambda=(i-101)/100),sortx)
}
bitmap(file='test1.png')
plot((-100:100)/100,c[1:201],xlab='lambda',ylab='correlation',main='PPCC Plot - Tukey lambda')
grid()
dev.off()
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Tukey Lambda - Key Values',2,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Distribution (lambda)',1,TRUE)
a<-table.element(a,'Correlation',1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Approx. Cauchy (lambda=-1)',header=TRUE)
a<-table.element(a,c[1])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Exact Logistic (lambda=0)',header=TRUE)
a<-table.element(a,(c[100]+c[102])/2)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Approx. Normal (lambda=0.14)',header=TRUE)
a<-table.element(a,c[115])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'U-shaped (lambda=0.5)',header=TRUE)
a<-table.element(a,c[151])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Exactly Uniform (lambda=1)',header=TRUE)
a<-table.element(a,c[201])
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable.tab')
| |
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