On 17/04/2013 11:04 AM, Ivan Alves wrote:
Dear all,
List g has 2 elements
> names(g)
[1] "2009-10-07" "2012-02-29"
and the list plot
lapply(g, plot, main=names(g))
results in equal plot titles with both list names, whereas distinct titles
names(g[1]) and names(g[2]) are sought. Clearly, lapply is passing 'g' in stead
of consecutively passing g[1] and then g[2] to process the additional 'main'
argument to plot. help(lapply) is mute as to what to element-wise pass
parameters. Any suggestion would be appreciated.
I think you want mapply rather than lapply, or you could do lapply on a
vector of indices. For example,
mapply(plot, g, main=names)
or
lapply(1:2, function(i) plot(g[[i]], main=names(g)[i]))
Duncan Murdoch
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