Hi,
Let's say you original data.frame is called df1, you can do:
df2 <- data.frame(date=row.names(df1), weekly.returns=df1[[1]])
Next time, think about giving us you sample data through the dput()
function. It makes it way easier.
HTH,
Ivan
--
Ivan CALANDRA
Université de Bourgogne
UMR CNRS/uB 6282 Biogéosciences
6 Boulevard Gabriel
21000 Dijon, FRANCE
+33(0)3.80.39.63.06
[email protected]
http://biogeosciences.u-bourgogne.fr/calandra
Le 11/07/12 07:35, 水静流深 a écrit :
there is a data frame £¬x
weekly.returns
2010-1-4 -0.015933327
2010-1-11 -0.015042868
2010-1-18 0.005350297
2010-1-25 -0.049324703
2010-2-1 -0.052674121
when i input
colnames(data)[1] <- 'date'
it becomes
date
2010-1-4 -0.015933327
2010-1-11 -0.015042868
2010-1-18 0.005350297
2010-1-25 -0.049324703
2010-2-1 -0.052674121
how can i change ti into:
date weekly.returns
1 2010-1-4 -0.015933327
2 2010-1-11 -0.015042868
3 2010-1-18 0.005350297
4 2010-1-25 -0.049324703
5 2010-2-1 -0.052674121
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and provide commented, minimal, self-contained, reproducible code.
