[R] i'm so stuck with text file and contour plot

[Mark Difford]

And I meant to add, but somehow forgot, that the default for read.csv is
header=TRUE (which is different from read.table, where it is FALSE).

Regards, Mark.


Mark Difford wrote:
> 
> Hi David,
> 
>>> I think he may also need to add the header=TRUE argument:
> 
> No! The argument header= is not required in this case.
> 
> ##
>> TDat <- read.csv("small.txt", sep="\t") 
>> str(TDat[,1:3])
> 'data.frame':   10 obs. of  3 variables:
>  $ Placename: Factor w/ 10 levels "Aankoms","Aapieshoek",..: 1 2 3 4 5 6 7
> 8 9 10
>  $ X_coord  : num  30.9 31.4 31.1 31.4 18.7 ...
>  $ Y_coord  : num  -26.2 -27.4 -29 -29 -33.5 ...
> 
> ?read.csv, sub header:
> "If missing, the value is determined from the file format: header is set
> to TRUE if and only if the first row contains one fewer field than the
> number of columns."
> 
> regards, Mark.
> 
> 
> David Winsemius wrote:
>> 
>> I think he may also need to add the header=TRUE argument:
>> 
>> tdat <- read.csv("http://www.nabble.com/file/p24777697/small.txt",  
>> header=TRUE, sep="\t")
>> 
>> Note: read.table with those arguments should have worked as well.
>> 
>> And then use names(tdat) <- c(<less bloated list of variable names>)
>> 
>> Perhaps along these lines:
>> tdnames <- names(tdat)
>> tdnames
>> 
>> #####------don't paste----------
>> [1] "Placename"
>> [2] "X_coord"
>> [3] "Y_coord"
>> [4] "Jan.to.Dec.2006.Stroke.Density.per.sq.km"
>> [5] "Jan.to.Dec.2007.Stroke.Density.per.sq.km"
>> [6] "Jan.to.Oct.2008.Stroke.Density.per.sq.km"
>> [7] "Total.Strokes.per.sq.km.for.Jan.2006.to.Oct.2008"
>> #######-------------
>> 
>>   names(tdat)[4:7] <- c("Strk.dens.2006", "Strk.dens.2007", "Strk.dens. 
>> 2008", "cumStrk.2006_8")
>> 
>>             # cannot use variable names that begin with numbers  
>> without special efforts
>> tdat       # now can be displayed more economically
>> 
>> -- 
>> David
>> 
>> On Aug 2, 2009, at 2:10 PM, Mark Difford wrote:
>> 
>>>
>>> Hannes,
>>>
>>>>> been trying to read a text file that contains heading in the first  
>>>>> line
>>>>> in to R but cant.
>>>
>>> You want the following:
>>>
>>> ##
>>> TDat <- read.csv("small.txt", sep="\t")
>>> TDat
>>> str(TDat)
>>>
>>> See ?read.csv
>>>
>>> Regards, Mark.
>>>
>>>
>>> hannesPretorius wrote:
>>>>
>>>> Ok i feel pretty stupid.. been trying to read a text file that  
>>>> contains
>>>> heading in the first line in to R but cant. all i need to do is  
>>>> make a
>>>> contour plot for a friend but after weeks i feel like giving up.. i
>>>> included the first few lines of the file.. any help will be great
>>>>
>>>> Thanks
>>>>
>>>> Hannes http://www.nabble.com/file/p24777697/small.txt small.txt
>>>>
>>>
>>> -- 
>>> View this message in context:
>>> http://www.nabble.com/i%27m-so-stuck-with-text-file-and-contour-plot-tp24777697p24780416.html
>>> Sent from the R help mailing list archive at Nabble.com.
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> 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.
>> 
>> David Winsemius, MD
>> Heritage Laboratories
>> West Hartford, CT
>> 
>> ______________________________________________
>> R-help at r-project.org mailing list
>> 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.
>> 
>> 
> 
> 

-- 
View this message in context: http://www.nabble.com/i%27m-so-stuck-with-text-file-and-contour-plot-tp24777697p24786283.html
Sent from the R help mailing list archive at Nabble.com.