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Aug
27
reviewed Close Numeric error in trivial compilation
Aug
27
reviewed No Action Needed How can I create a shortcut for a command in Mathematica?
Aug
27
reviewed Close Using FortranForm for d0 notation?
Aug
26
reviewed Close converting a .nb* file
Aug
26
reviewed Leave Open Fitting Data using GeometricBrownianMotionProcess
Aug
26
reviewed Close How to ValueQ a symbol, constructing the symbol name from strings?
Aug
26
reviewed Leave Open How can I evaluate untrusted Mathematica code in a sandbox?
Aug
26
comment Fitting Data using GeometricBrownianMotionProcess
I guess you could estimate drift by a linear fit to the data and volatility by its standard deviation.
Aug
26
comment Fitting Data using GeometricBrownianMotionProcess
You don't. There's absolutely no reason whatsoever for peaks and dips to match.
Aug
26
comment Fitting Data using GeometricBrownianMotionProcess
Did you look at EstimatedProcess? BTW note that the fitted process quite probably will generate paths differing from the original. It is a random process after all.
Aug
26
reviewed Close How can I avoid getting the message Solve::ratnz?
Aug
26
comment How can I evaluate untrusted Mathematica code in a sandbox?
As a follow-up to belisarius' comment: try the program sandboxie. It won't help against Quit but it will prevent your computer from being messed up by the code. Related: list-of-dangerous-functions.
Aug
26
reviewed Close CoefficientList with multivariable
Aug
26
reviewed Close How can i find an equation, like polynomial fit for satisfy my equation ( in 3 variables )
Aug
25
reviewed Leave Open Does a running evaluation continue after the PC wakes from sleep mode?
Aug
25
reviewed Approve Individual ColorFunction with RGBColor
Aug
25
reviewed Reviewed Coloured image transformation in pointillism
Aug
25
comment Coloured image transformation in pointillism
If you tried something but got stuck somewhere it would be good to add that to your question.
Aug
25
reviewed Leave Open How to write crash-robust code?
Aug
24
reviewed Reject How to retrieve the remaining cashflows from a FinancialBond object