Hi all,

I've got a time series object (xts) called table.  Table contains closing
price and volume for each market day of 2009 on a given equity.

I'd like to get another xts object, say table2, that contains for each
market day holds the close of that day minus the close of the day before and
the volume of that day minus the volume of the day before.

So

table2 <- table[x,] - table[(x-1),]

But I can't quit get the syntax, any help would be appreciated.

Nick

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