[R] merging lists within lists via time stamp

[tomtomme]

still no answer? I´ll try to be more precise and will ask on stack-overflow
too...

I´ve got multiple data.frames of gps- and temperature-data within a list.
One data.frame looks like:

GPS:

           date     time     x.lat     x.lon   
    1      22.05.11 13:50:37 53.57908 10.034599 
    2      22.05.11 13:50:38 53.57906 10.034633 

temp:

            date     time     temp
    1      22.05.11 13:50:38 21.6120
    2      22.05.11 13:50:39 21.6070

So I have two lists, one with multiple gps-data.frames and one with multiple
temp-dataframes. I used lapply to manipulate both lists, but can´t merge
temp and gps to one big list, containing all data.frames, for only
time-stamps which exists in both list, like for the above example only
13:50:38 exists in both:

GPS+temp:

           date     time    x.lat     x.lon     temp
    1      22.05.11 13:50:38 53.57906 10.034633 21.6070

For the single data-frames that worked just fine with:

    both <- merge(gps,temp)

For the two lists of data.frames I first tried an lapply over both
lists...something like

    both <- lapply(temp, gps, function(x){x <- merge(x);x})

Then I tried it with 

    both <- merge.list(gps,temp)

but this doesn´t work either. It just transfers the first list "gps" to both

Thanks for any hint, Thomas 

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