print dataframe names in loop

Hi Kai,
One way is to name the components of your list with the names of the
data frames:

df1<-data.frame(a=1:3)
df2<-data.frame(a=4:6)
df3<-data.frame(a=7:9)
dflist<-list(df1,df2,df3)
names(dflist)<-c("df1","df2","df3")
for(i in 1:length(dflist)) cat(names(dflist)[i],"\n")
df1
df2
df3

Jim


On Fri, May 15, 2015 at 10:05 PM, Kai Mx <govokai at gmail.com> wrote:

Hi everybody,

I just can't  figure this out:

I have a loop trough several dataframes such as

for (df in list(df1, df2, df3, ...)) {
..some functions with df..
}

now I want to print out the current dataframes name (ie the list items
name) with the cat command before the actual functions to have better
orientation in the output.
However, I haven't been successful with different variations of

deparse(),

substitute(), (cat(substitute(df)) gives me 'df' for the whole loop).

Could somebody please enlighten me?

Thanks so much!

Best,

Kai

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