r - Specify function parameters in do.call -


lets have function fetches data yahoo called yahoo.fetch, , run do.call on function, be:

do.call(merge.xts, lapply(list.of.tickers, yahoo.fetch))

the default have all=true in merge.xts, how able specify in do.call have all=false? example, know how change , specify parameters in apply, do.call, lapply functions.

you can add named value existing list c() returns list:

do.call(merge.xts, c( lapply(list.of.tickers, yahoo.fetch), all=false ))

or wrap parameter in anonymous helper function:

do.call( function(x) merge.xts(x, all=false),                 lapply(list.of.tickers, yahoo.fetch))

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