r - Return a data frame using replicate command -

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the "do" command mosaic package nicely returns data frame default.

require(mosaic) require(sleuth3)   nulldist1 <- do(10)*t.test(incidents~shuffle(launch),                            data=case0401,var.equal=true)$statistic class(nulldist1)

now, i'd use replicate command same thing. there argument 1 can set in replicate command force return data frame? tried simplify="data.frame" didn't work.

nulldist2 <- replicate(10,{   t.test(incidents~shuffle(launch),          data=case0401,var.equal=true)$statistic }) class(nulldist2)

any thoughts?

data.frame(result = replicate(10,t.test(rnorm(100),rnorm(100))$statistic))

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