I have a list of 20 values. The first time through a loop I want to find the mean and stnd.dev. of the first two values; the second time through the loop I want to find the mean and stnd. dev. of the first 3 values, etc. until the last time through the loop I want to find the mean and stnd. dev. of all 20 values, so I end up with 19 means and stnd. deviations. How would I construct such a loop? Thanks. -- View this message in context: http://www.nabble.com/Loop-with-variable-index-tp15190661p15190661.html Sent from the R help mailing list archive at Nabble.com.
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