search for: d2004

Displaying 4 results from an estimated 4 matches for "d2004".

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2004 Sep 09
1
Indexing dataframe
I am sorry to ask such question, but I can't find a solution... I have a dataframe 'd2004' and I want to remove two columns: 'd2004$concentration' and 'd2004$stade". I could do it just as follows: > names(d2004) [1] "Localite" "Date" "parcelle" "maille" "presence.plant" "concentratio...
2005 Jun 28
1
Using data frames for EDA: Insert, Change name, delete columns? (Newcomer's question)
I am finding complex analyses easier than some elementary operations in R. In particular I want to do some low level exploratory data analyses with data in a data frame but cannot find commands to easily insert, remove (delete), rename, and re-order (arbitrarily, not sort) columns. I see that the micEcon package has an insertCol command, but that is for matrices, not data frames. I have looked
2004 Sep 09
0
AW: Indexing dataframe
Hi, Use Newdata <- subset(d2004, select=-c(concentration,stade)) See ?subset for details Best, Matthias > -----Urspr??ngliche Nachricht----- > Von: Jacques VESLOT [mailto:jacques.veslot at cirad.fr] > Gesendet: Donnerstag, 09. September 2004 12:38 > An: r-help at stat.math.ethz.ch > Betreff: [R] Indexing datafr...
2010 Sep 13
1
Create a time-series from cross-sectional data that has each year as a separate column
...um NA NA 202 NA NA ... $ D1999 : num NA NA 201 NA NA ... $ D2000 : num NA NA 207 NA NA ... $ D2001 : num 68.1 NA 198.3 NA NA ... $ D2002 : num NA NA 186 NA NA ... $ D2003 : num 67.6 NA 148.8 NA NA ... $ D2004 : num 68.8 NA 143.7 NA NA ... $ D2005 : num NA NA 163 NA NA ... $ D2006 : num NA NA 189 NA NA ... $ D2007 : num NA NA NA 14 1.91 ... How do I transform this into something that I can make a time-series of? Sincerely, Gabri...