Blog & Share Statistical Computations at FreeStatistics.org

Home » date » 2009 » Oct » 26 »

*The author of this computation has been verified*

R Software Module: Ian.Holliday/rwasp_CARE Data Boxplot.wasp (opens new window with default values)

Title produced by software: Boxplot and Trimmed Means

Date of computation: Mon, 26 Oct 2009 16:29:47 +0100

Cite this page as follows:

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2009/Oct/26/t1256571056vu8gc3xxbjm6x11.htm/, Retrieved Mon, 26 Oct 2009 16:30:56 +0100

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/2009/Oct/26/t1256571056vu8gc3xxbjm6x11.htm/},
    year = {2009},
}
@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 = {2009},
    note = {{ISBN} 3-900051-07-0},
    url = {http://www.R-project.org},
}

Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords:

Dataseries X:

» Textbox « » Textfile « » CSV «

68 72 66 88 66 70 88 71 90 74 70 78 68 68 69 71 74 72 94 73 71 72 70 99 75 73 72 78 63 71 73 80 81 72 75 74 62 72 83 71 75 62 78 69 67 75 100 77 91 81 75 72 81 97 79 75 85 75 92 73 77 72 77 63 77 77 72 78 84 75 77 81 86 82 79 77 100 82 84 85 78 82 86 84 82 78 88 83 91 82 78 88 84 110 82 80 78 85 88 81 80 87 90 73 82 80 87 84 77 85 80 75 79 70 78 80 100 79 94 85 80 97 78 82 80 80 89 83 100 84 80 92 81 99 79 80 92 82 89 84 81 102 84 94 87 81 93 86 81 86 81 87 87 83 81 82 96 87 75 85 82 85 78 92 83 82 72 77 81 79 82 91 100 102 93 82 75 82 73 82 82 62 79 91 78 83 92 90 96 88 83 82 88 79 85 84 88 86 100 84 84 91 86 89 86 84 82 95 82 86 84 92 95 96 92 84 71 84 87 79 84 75 90 86 85 84 82 92 88 85 84 90 87 92 88 85 89 87 67 88 85 91 98 113 87 86 79 79 77 86 86 89 105 78 88 86 73 82 96 82 86 77 84 89 83 86 95 108 97 92 86 92 86 89 90 86 93 89 93 85 86 95 95 103 92 86 82 84 86 85 86 91 96 88 92 86 92 102 95 97 86 82 89 83 87 86 102 92 96 92 87 72 78 85 82 8 etc...

Output produced by software:

Enter (or paste) a matrix (table) containing all data (time) series. Every column represents a different variable and must be delimited by a space or Tab. Every row represents a period in time (or category) and must be delimited by hard returns. The easiest way to enter data is to copy and paste a block of spreadsheet cells. Please, do not use commas or spaces to seperate groups of digits!

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'RServer@AstonUniversity' @ vre.aston.ac.uk

Boxplot statistics
Variable	lower whisker	lower hinge	median	upper hinge	upper whisker
WJ7ARD	68	82	89	96	112
WJ7AMA	62	82	91	97	114
WJ7AWL	66	84	92	104	123
WJ7AKN	67	85	92	98	114
WJ7ASK	66	84	90	98	118

Boxplot Means
Variable	trimmed mean	unbiased SD
WJ7ARD	88.99	9.4
WJ7AMA	90.27	11.81
WJ7AWL	93.81	12.81
WJ7AKN	91.72	10.43
WJ7ASK	91.43	11.29

Charts produced by software:

http://www.freestatistics.org/blog/date/2009/Oct/26/t1256571056vu8gc3xxbjm6x11/1cdqe1256570985.png (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/26/t1256571056vu8gc3xxbjm6x11/1cdqe1256570985.ps (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/26/t1256571056vu8gc3xxbjm6x11/2vnci1256570985.png (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/26/t1256571056vu8gc3xxbjm6x11/2vnci1256570985.ps (open in new window)

Parameters (Session):

par1 = 3 ; par2 = FALSE ; par3 = 0 ;

Parameters (R input):

par1 = 3 ; par2 = FALSE ; par3 = 0 ;

R code (references can be found in the software module):

par1 <- as.numeric(par1) #colour

par2<- as.logical(par2) # Notches ?

par3<-as.numeric(par3) # % trim

if(par3>45){par3<-45;warning('trim limited to 45%')}

if(par3<0){par3<-0;warning('negative trim makes no sense. Trim is zero.')}

lotrm<-as.integer(length(y[1,])*par3/100)+1

hitrm<-as.integer(length(y[1,])*(100-par3)/100)

y1<-array(dim=c(dim(y)[1], hitrm-lotrm+1), dimnames=list(dimnames(y)[[1]], 1:(hitrm-lotrm+1) ))

for(i in 1:dim(y)[1]){

tmp<-order(y[i,])

y1[i,]<- y[i, tmp[lotrm:hitrm] ]

}

bitmap(file='test2.png')

pairs(t(y))

dev.off()

y<-y1

z <- as.data.frame(t(y))

bitmap(file='test1.png')

(r<-boxplot(z ,xlab=xlab,ylab=ylab,main=main,notch=par2,col=par1))

dev.off()

load(file='createtable')

a<-table.start()

a<-table.row.start(a)

a<-table.element(a,hyperlink('http://www.xycoon.com/overview.htm','Boxplot statistics','Boxplot overview'),6,TRUE)

a<-table.row.end(a)

a<-table.row.start(a)

a<-table.element(a,'Variable',1,TRUE)

a<-table.element(a,hyperlink('http://www.xycoon.com/lower_whisker.htm','lower whisker','definition of lower whisker'),1,TRUE)

a<-table.element(a,hyperlink('http://www.xycoon.com/lower_hinge.htm','lower hinge','definition of lower hinge'),1,TRUE)

a<-table.element(a,hyperlink('http://www.xycoon.com/central_tendency.htm','median','definitions about measures of central tendency'),1,TRUE)

a<-table.element(a,hyperlink('http://www.xycoon.com/upper_hinge.htm','upper hinge','definition of upper hinge'),1,TRUE)

a<-table.element(a,hyperlink('http://www.xycoon.com/upper_whisker.htm','upper whisker','definition of upper whisker'),1,TRUE)

a<-table.row.end(a)

for (i in 1:length(y[,1]))

{

a<-table.row.start(a)

a<-table.element(a,dimnames(t(x))[[2]][i],1,TRUE)

for (j in 1:5)

{

a<-table.element(a,round(r$stats[j,i], digits=2))

}

a<-table.row.end(a)

}

a<-table.end(a)

table.save(a,file='mytable.tab')

if (par2){

a<-table.start()

a<-table.row.start(a)

a<-table.element(a,'Boxplot Notches',4,TRUE)

a<-table.row.end(a)

a<-table.row.start(a)

a<-table.element(a,'Variable',1,TRUE)

a<-table.element(a,'lower bound',1,TRUE)

a<-table.element(a,'median',1,TRUE)

a<-table.element(a,'upper bound',1,TRUE)

a<-table.row.end(a)

for (i in 1:length(y[,1]))

{

a<-table.row.start(a)

a<-table.element(a,dimnames(t(x))[[2]][i],1,TRUE)

a<-table.element(a,round(r$conf[1,i], digits=2))

a<-table.element(a, round(r$stats[3,i], digits=2))

a<-table.element(a,round(r$conf[2,i], digits=2))

a<-table.row.end(a)

}

a<-table.end(a)

table.save(a,file='mytable1.tab')

}

a<-table.start()

a<-table.row.start(a)

a<-table.element(a,'Boxplot Means',4,TRUE)

a<-table.row.end(a)

a<-table.row.start(a)

a<-table.element(a,'Variable',1,TRUE)

a<-table.element(a,hyperlink('http://www.xycoon.com/trimmed_mean.htm','trimmed mean','definition of trimmed mean'),1,TRUE)

a<-table.element(a,hyperlink('http://www.xycoon.com/unbiased1.htm','unbiased SD','definition of unbiased SD'),1,TRUE)

a<-table.row.end(a)

for (i in 1:length(y[,1]))

{

a<-table.row.start(a)

a<-table.element(a,dimnames(t(x))[[2]][i],1,TRUE)

a<-table.element(a,round(mean(z[i], trim=par3/100), digits=2))

a<-table.element(a,round(sd(z[i]), digits=2))

a<-table.row.end(a)

}

a<-table.end(a)

table.save(a,file='mytable2.tab')

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

Software written by Ed van Stee & Patrick Wessa

Disclaimer

Information provided on this web site is provided "AS IS" without warranty of any kind, either express or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose, and noninfringement. We use reasonable efforts to include accurate and timely information and periodically update the information, and software without notice. However, we make no warranties or representations as to the accuracy or completeness of such information (or software), and we assume no liability or responsibility for errors or omissions in the content of this web site, or any software bugs in online applications. Your use of this web site is AT YOUR OWN RISK. Under no circumstances and under no legal theory shall we be liable to you or any other person for any direct, indirect, special, incidental, exemplary, or consequential damages arising from your access to, or use of, this web site.

We may request personal information to be submitted to our servers in order to be able to:

personalize online software applications according to your needs
enforce strict security rules with respect to the data that you upload (e.g. statistical data)
manage user sessions of online applications
alert you about important changes or upgrades in resources or applications

We NEVER allow other companies to directly offer registered users information about their products and services. Banner references and hyperlinks of third parties NEVER contain any personal data of the visitor.

We do NOT sell, nor transmit by any means, personal information, nor statistical data series uploaded by you to third parties.

We carefully protect your data from loss, misuse, alteration, and destruction. However, at any time, and under any circumstance you are solely responsible for managing your passwords, and keeping them secret.

We store a unique ANONYMOUS USER ID in the form of a small 'Cookie' on your computer. This allows us to track your progress when using this website which is necessary to create state-dependent features. The cookie is used for NO OTHER PURPOSE. At any time you may opt to disallow cookies from this website - this will not affect other features of this website.

We examine cookies that are used by third-parties (banner and online ads) very closely: abuse from third-parties automatically results in termination of the advertising contract without refund. We have very good reason to believe that the cookies that are produced by third parties (banner ads) do NOT cause any privacy or security risk.

FreeStatistics.org is safe. There is no need to download any software to use the applications and services contained in this website. Hence, your system's security is not compromised by their use, and your personal data - other than data you submit in the account application form, and the user-agent information that is transmitted by your browser - is never transmitted to our servers.

As a general rule, we do not log on-line behavior of individuals (other than normal logging of webserver 'hits'). However, in cases of abuse, hacking, unauthorized access, Denial of Service attacks, illegal copying, hotlinking, non-compliance with international webstandards (such as robots.txt), or any other harmful behavior, our system engineers are empowered to log, track, identify, publish, and ban misbehaving individuals - even if this leads to ban entire blocks of IP addresses, or disclosing user's identity.

FreeStatistics.org is powered by