Not quite - this works: rbind(df1, df2, df3, df1, df2, df3) Or if the have your data.frames in a list, use do.call:
df.lst <- list(df1, df2, df3, df1, df2, df3) do.call(rbind, df.lst) You might take a look at the facet functionality in ggplot once you are ready to build your plots. Best, Ulrik On Wed, 3 Aug 2016 at 17:42 lily li <[email protected]> wrote: > Thanks, but rbind/merge function only combines two dataframes each time, > how to work on multiple dataframes? Thanks again. > > > On Wed, Aug 3, 2016 at 4:20 AM, PIKAL Petr <[email protected]> wrote: > > > Hi. > > > > Hm. I would add a column indicating data frame and merge/rbind all data > > frames. > > > > Something like > > > > df1$fr <- 1 > > df2$fr <- 2 > > > > dfkompl <- rbind(df1, df2) > > > > ggplot(dfkompl, aes(x=time, y=varA, colour=factor(fr)) > > > > Cheers > > Petr > > > > > > > -----Original Message----- > > > From: R-help [mailto:[email protected]] On Behalf Of lily > li > > > Sent: Tuesday, August 2, 2016 8:51 PM > > > To: R mailing list <[email protected]> > > > Subject: [R] plot many dfs in ggplot > > > > > > Hi all, > > > > > > I have another question. There are several dataframes, each has the > same > > > columns: time, varA, varB, varC, etc. If I want to plot time ~ varA of > > each > > > dataframe, where different dataframe names use different colors. How to > > > do this in ggplot? 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