Hi,
I am new to this, can anyone help.
I am working with matrices, with stocknames as colNames and dates as
rowNames.
The data coontains percentile ranking for the stocks.
Date IBM MSFT 20061122 12 4 20061115 12 4
20061108
12 4 20061101 12 4 20061025 12 4 20061018 12 4 20061011
11 3 20061004 12 3 20060927 10 3
I would like to calculate the rolling-rate-of-change of these ranking.
I tried searching for second-derivative/slope/trend/etc to no avail.
thanks in advance.
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