write.table
Thank you for your advice, but I didn't manage to make it work...
I tried
carichi.annui <- data.frame(anno,loadPTG,loadPO4,loadNT,loadNH4,loadNO3,loadBOD5,loadSiO2)
And I got this error message:
Error in data.frame(anno, loadPTG, loadPO4, loadNT, loadNH4, loadNO3, :
the arguments have a different numer of rows: 4, 1
If I do
sapply(carichi.annui, class)
I get:
anno loadPTG loadPO4 loadNT loadNH4 loadNO3 loadBOD5 loadSiO2
"list" "list" "list" "list" "list" "list" "list" "list"
I thought that the function as.vector() could turn a list of numbers into a vector... was I wrong?
----Messaggio originale----
Da: ripley at stats.ox.ac.uk
Data: 20.02.2009 12.40
A: "lauramorgana at bluewin.ch"<lauramorgana at bluewin.ch>
Copia: <r-help at r-project.org>
Oggetto: Re: [R] write.table
On Fri, 20 Feb 2009, lauramorgana at bluewin.ch wrote:
Sorry, I'm using R 2.8.1 on Microsoft Windows XP professional 2002 Service Pack 2. The error I get is Error in write.table(x, file, nrow(x), p, rnames, sep, eol,
na, dec, as.integer(quote), :
'list' type not implemented in 'EncodeElement' The problem is that I can' t manage to save the dataframe... With other dataframe I usually have no problems!!!
What does sapply(carichi.annui, class) tell you? It would be better to use carichi.annui <- data.frame(anno,loadPTG,loadPO4,loadNT,loadNH4,loadNO3,loadBOD5,loadSiO2) as you don't need an intermediate matrix.
Hello, I tried to turn lists into vectors and then bind them together in order to create a dataframe but if, after this, I try to use the function write.table I get the following error message: Error in write.table(x, file, nrow(x), p, rnames, sep, eol, na, dec, as.integer(quote), : 'list' type not implemented in 'EncodeElement' Here is what I've done: as.vector(c(unique(portate$Anno)))->anno as.vector(loadListPO4)->loadPO4 as.vector(loadListPTG)->loadPTG as.vector(loadListNT)->loadNT as.vector(loadListNH4)->loadNH4 as.vector(loadListNO3)->loadNO3 as.vector(loadListBOD5)->loadBOD5 as.vector(loadListSiO2)->loadSiO2 cbind(anno,loadPTG,loadPO4,loadNT,loadNH4,loadNO3,loadBOD5,loa dSiO2)->carichi as.data.frame(carichi)->carichi.annui #if I type carichi.annui #I get anno loadPTG loadPO4 loadNT loadNH4 loadNO3 loadBOD5 loadSiO2 1 2002 3.399518 1.382235 390.6959 22.07992 256.2244 492.9177 150.6505 2 2003 1.559606 0.6271712 202.9181 6.198592 145.9498 63.07578 68.08632 3 2004 2.363862 0.9493779 292.0841 12.21207 200.2545 141.0533 105.2409 4 2005 1.655554 0.6570313 217.2192 6.58045 155.7393 66.44154 73.0394 5 2006 1.827174 0.7290634 235.7914 7.858396 166.8327 79.2474 80.92576 6 2007 1.742629 0.6891045 228.0253 7.130082 162.6692 71.91434 77.22507 7 2008 0.8382246 0.3612176 110.9079 2.024197 86.60459 25.46127 32.9733 #which looks lika a data frame #And if I type is.data.frame(carichi.annui) # I get this: [1] TRUE #but if I try write.table(carichi.annui, "carichi.annui.lav") #It doesn't work?!?!?! Does someone have an explanation? Thanks a lot for any help!! Laura
Laura, What do you mean by "It doesn't work"? Do you get error messages? Or, do you just not get what you want? And if so, what is that you want? Dan Daniel Nordlund Bothell, WA USA
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Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595