I think this is an important example! Is there a way to make it included in the help of order?
Maybe a shortened version:
# sorting a data frame
df <- data.frame(V1 = c("W","A", "A", "B", ""), V2 = c("E", "M", "B", "O", "Q"))
sorted <- df[order(df$V1, df$V2), ]
And a question: what to do to have the sorted data frame with the row labels 1:n?
Gábor
---------------------------------------------------------------- Marc Schwartz írta:
On Wed, 2003-07-16 at 08:42, Wayne Jones wrote:Does anyone know if it is possible to sort a dataframe?
Example:
# Create two column df
df <- data.frame(V1 = c("W","A", "A", "B", ""), V2 = c("E", "M", "B", "O", "Q"))
# show df unsorted
df
V1 V2 1 W E 2 A M 3 A B 4 B O 5 Q
# now sort df, by V1, then V2 df[order(df$V1, df$V2), ]
V1 V2 5 Q 3 A B 2 A M 4 B O 1 W E
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