Praveen Surendran
2015-Sep-18 12:08 UTC
[R] Issue with results from 'summary' function in R
Hi all,
Attached table (that contains summary for a genetic association study) was read
using the command:
test <- read.table('testDat.txt',header=FALSE,stringsAsFactors=FALSE)
Results from the summary of the attached table is provided below:
> summary(test$V5)
Min. 1st Qu. Median Mean 3rd Qu. Max.
22070 22070 22070 22070 22070 22070
As we can see column 5 of this table contains only one value - 22072
I am confused as to why I am getting a value 22070 in the summary of this
column.
I tested this using versions of R including - R version 3.2.1 (2015-06-18) --
"World-Famous Astronaut"
Thank you for looking at this issue.
Kind Regards,
Praveen.
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: testDat.txt
URL:
<https://stat.ethz.ch/pipermail/r-help/attachments/20150918/08e46309/attachment.txt>
Thierry Onkelinx
2015-Sep-18 14:51 UTC
[R] Issue with results from 'summary' function in R
This is described in ?summary> x <- 22072 > getOption("digits")[1] 7> summary(x)Min. 1st Qu. Median Mean 3rd Qu. Max. 22070 22070 22070 22070 22070 22070> options(digits = 10) > summary(x)Min. 1st Qu. Median Mean 3rd Qu. Max. 22072 22072 22072 22072 22072 22072 ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey 2015-09-18 14:08 GMT+02:00 Praveen Surendran <ps629 at medschl.cam.ac.uk>:> Hi all, > > Attached table (that contains summary for a genetic association study) was read using the command: > > test <- read.table('testDat.txt',header=FALSE,stringsAsFactors=FALSE) > > Results from the summary of the attached table is provided below: > >> summary(test$V5) > Min. 1st Qu. Median Mean 3rd Qu. Max. > 22070 22070 22070 22070 22070 22070 > > As we can see column 5 of this table contains only one value - 22072 > I am confused as to why I am getting a value 22070 in the summary of this column. > > I tested this using versions of R including - R version 3.2.1 (2015-06-18) -- "World-Famous Astronaut" > > Thank you for looking at this issue. > Kind Regards, > > Praveen. > > > > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.
On 18/09/2015 13:08, Praveen Surendran wrote:> Hi all, > > Attached table (that contains summary for a genetic association study) was read using the command: > > test <- read.table('testDat.txt',header=FALSE,stringsAsFactors=FALSE) > > Results from the summary of the attached table is provided below: > >> summary(test$V5) > Min. 1st Qu. Median Mean 3rd Qu. Max. > 22070 22070 22070 22070 22070 22070 > > As we can see column 5 of this table contains only one value - 22072 > I am confused as to why I am getting a value 22070 in the summary of this column. > > I tested this using versions of R including - R version 3.2.1 (2015-06-18) -- "World-Famous Astronaut" > > Thank you for looking at this issue. > Kind Regards, > > Praveen.> summary(22072, digits=5) Min. 1st Qu. Median Mean 3rd Qu. Max. 22072 22072 22072 22072 22072 22072
Praveen Surendran
2015-Sep-19 00:47 UTC
[R] Issue with results from 'summary' function in R
Hi Thierry, Thank you for the response. I should have looked at the help page. Kind Regards, Praveen. On 18/09/2015 15:51, "Thierry Onkelinx" <thierry.onkelinx at inbo.be> wrote:>This is described in ?summary > >> x <- 22072 >> getOption("digits") >[1] 7 >> summary(x) > Min. 1st Qu. Median Mean 3rd Qu. Max. > 22070 22070 22070 22070 22070 22070 >> options(digits = 10) >> summary(x) > Min. 1st Qu. Median Mean 3rd Qu. Max. > 22072 22072 22072 22072 22072 22072 >ir. Thierry Onkelinx >Instituut voor natuur- en bosonderzoek / Research Institute for Nature >and Forest >team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance >Kliniekstraat 25 >1070 Anderlecht >Belgium > >To call in the statistician after the experiment is done may be no >more than asking him to perform a post-mortem examination: he may be >able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher >The plural of anecdote is not data. ~ Roger Brinner >The combination of some data and an aching desire for an answer does >not ensure that a reasonable answer can be extracted from a given body >of data. ~ John Tukey > > >2015-09-18 14:08 GMT+02:00 Praveen Surendran <ps629 at medschl.cam.ac.uk>: >> Hi all, >> >> Attached table (that contains summary for a genetic association study) >>was read using the command: >> >> test <- read.table('testDat.txt',header=FALSE,stringsAsFactors=FALSE) >> >> Results from the summary of the attached table is provided below: >> >>> summary(test$V5) >> Min. 1st Qu. Median Mean 3rd Qu. Max. >> 22070 22070 22070 22070 22070 22070 >> >> As we can see column 5 of this table contains only one value - 22072 >> I am confused as to why I am getting a value 22070 in the summary of >>this column. >> >> I tested this using versions of R including - R version 3.2.1 >>(2015-06-18) -- "World-Famous Astronaut" >> >> Thank you for looking at this issue. >> Kind Regards, >> >> Praveen. >> >> >> >> >> ______________________________________________ >> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >>http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code.