Dear R-list users,
for each winter season from 2000 to 2022 I have a data frame collecting for
different weather stations snowpack height (Hs), snowfall in the last 24h (Hn)
and a validation flag.
Suppose I have these three following data frames
df1 <- data.frame(data_POSIX=seq(as.POSIXct("2000-12-01", format="%Y-%m-%d",
tz="Etc/GMT-1"), as.POSIXct("2000-12-05", format="%Y-%m-%d", tz="Etc/GMT-1"),
by="1 days"), Station1_Hs = c(30, 40, 50, NA, 55), Station1_Hn = c(10, 20, 10,
NA, 5), Station1_flag = c(0, 0, 0, NA, 0), Station2_Hs = c(20, 20, 30, 30, 0),
Station2_Hn = c(0, 0, 10, 0, 5), Station2_flag = c(0, 0, 0, 1, 0))
df2 <- data.frame(data_POSIX=seq(as.POSIXct("2001-12-01", format="%Y-%m-%d",
tz="Etc/GMT-1"), as.POSIXct("2001-12-05", format="%Y-%m-%d", tz="Etc/GMT-1"),
by="1 days"), Station1_Hs = c(50, 60, 70, NA, NA), Station1_Hn = c(20, 20, 20,
NA, NA), Station1_flag = c(0, 0, 0, NA, NA), Station3_Hs = c(20, 20, 30, 30,
0), Station3_Hn = c(0, 0, 10, 0, 5), Station3_flag = c(0, 0, 0, 1, 0))
df3 <- data.frame(data_POSIX=seq(as.POSIXct("2002-12-01", format="%Y-%m-%d",
tz="Etc/GMT-1"), as.POSIXct("2002-12-05", format="%Y-%m-%d", tz="Etc/GMT-1"),
by="1 days"), Station2_Hs = c(50, 60, 70, NA, NA), Station2_Hn = c(20, 20, 20,
NA, NA), Station2_flag = c(0, 0, 0, NA, NA), Station3_Hs = c(20, 20, 30, 30,
0), Station3_Hn = c(0, 0, 10, 0, 5), Station3_flag = c(0, 0, 0, 1, 0))
As you can see, each data frame can have different stations loaded.
I would need to call rbind matching data frames by column name (i.e. by station
name), keeping in mind that the number of stations loaded in each data frame
may differ. The result should be
data_POSIX Station1_Hs Station1_Hn Station1_flag Station2_Hs Station2_Hn
Station2_flag Station3_Hs Station3_Hn Station3_flag
2000-12-01 30 10 0 20 0 0 NA NA NA
2000-12-02 40 20 0 20 0 0 NA NA NA
2000-12-03 50 10 0 30 10 0 NA NA NA
2000-12-04 NA NA NA 30 0 0 NA NA NA
2000-12-05 55 5 0 0 5 0 NA NA NA
2001-12-01 50 20 0 NA NA NA 20 0 0
2001-12-02 60 20 0 NA NA NA 20 0 0
2001-12-03 70 20 0 NA NA NA 30 10 0
2001-12-04 NA NA NA NA NA NA 30 0 1
2001-12-05 NA NA NA NA NA NA 0 5 0
2002-12-01 NA NA NA 50 20 0 20 0 0
2002-12-02 NA NA NA 60 20 0 20 0 0
2002-12-03 NA NA NA 70 20 0 30 10 0
2002-12-04 NA NA NA NA NA NA 30 0 1
2002-12-05 NA NA NA NA NA NA 0 5 0
I tried this code
df_list <- list(df1, df2, df3)
allNms <- unique(unlist(lapply(df_list, names)))
do.call(rbind, c(lapply(df_list, function(x) data.frame(c(x,
sapply(setdiff(allNms, names(x)), function(y) NA)))), make.row.names=FALSE))
but I get this error:
Error in (function (..., row.names = NULL, check.rows = FALSE, check.names =
TRUE, :
arguments imply differing number of rows
Could someone please help me?
Thank you for your attention
Stefano
(oo)
--oOO--( )--OOo--------------------------------------
Stefano Sofia PhD
Civil Protection - Marche Region - Italy
Meteo Section
Snow Section
Via del Colle Ameno 5
60126 Torrette di Ancona, Ancona (AN)
Uff: +39 071 806 7743
E-mail: stefano.so...@regione.marche.it
---Oo---------oO----------------------------------------
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