Example

Day 1 Average (Day 1), Standard Deviation (Day 1)

Day 2 Average (Day 1 - 2), Standard Deviation (Day 1 - 2)

Day 3 Average (Day 1 - 3), Standard Deviation (Day 1 - 3)

Day 4 Average (Day 1 - 4), Standard Deviation (Day 1 - 4)

...

Day n Average (Day 1 - n), Standard Deviation (Day 1 - n)

I have about 750 sets that I want to run this computation on and each set has about 6,050 data points (days).

I am assuming that each day in the set is going to add exponential number of calculations for the computer. Due to the high volume, excel would run out of RAM very quickly (I have 2 GB RAM). I assume that once programmed, the computations (just a guesstimation) would take a month or two of full time computing.

The only programming I have ever done was on the TI calculators in High School. Can someone point to a programming language that would be good for this type of program? I am working on this project over a couple of months and therefore don't mind learning a language that lends itself to this type of data computation.