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Dear all, I'd like to have a dataframe store information about the units of the data it contains. You'll find below a minimal exemple of the way I do, so far. I add a "units" attribute to the dataframe. But I dont' like the long syntax needed to access to the unit of a given variable (namely, something like : var_unit <- attr(my_frame,

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Hi, I need some help figuring out how to make a pop-up message box appear with error messages when running a script using Rterm. Windows XP R2.10.1 ...possibly with the ability to either continue or abort the script? Thanks. M -- [[alternative HTML version deleted]]

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Dear R-Helpers, I need to compute cross-correlation on two signals wich may contain missing values. One cannot pass "Na.action=na.pass" to the ccf() function. So, I wrote a naive function of my own (see below). Unsurprisingly, this function is not very fast. Do you think that it is possible to do better, or should I accept my fate ? Bruno. my_ccf <- function (X, Y,