<t>QuoteOriginally posted by: OliverPIf you use R there is an R Package called quadprog, I believe there is also something available in Fortran (try google) but I doubt you'll find anything in Java that anyone is prepared to give away! I don't understand what you mean about attempting to solve a qua...

Both are Lenovo X61 ultraportables. They are 100% identical. Same Centrino Duo 2.2 ghz processor. 2 GB RAM.I did whatever the default install is for R, Emacs and ESS.The diff in speed is about 30% in favor of the Windows XP machine.

<t>Anyone have any idea why a piece of code run on two identical computers hardware wise (same model laptop, same processor, same memory, etc) would be a lot faster on one than the other?The only diff between the two machines is one OS is Win XP Pro and the other is Ubuntu Linux. Both running the sa...

If you know R interface R through Excel.

<t>QuoteOriginally posted by: Y0daWhat is required for a person to call herself a "quantitative analyst"?Is a PhD needed? If not, does bachelor degree + experience in a bankwith some quant stuff qualify as a "quant"?According to Daniel Duffy you must spend a minimum of 80% of your time coding in C++...

<t>QuoteOriginally posted by: merevHi everyone,I am finishing my PhD in Applied Math in May 2009. I was thinking about taking one of these 2 statistics courses during my last semester:Time Series Analysis (textbook: Time Series Analysis and its Applications, Shumway and Stoffer)or Applied Multivaria...

<t>QuoteOriginally posted by: rynoblasterQuoteOriginally posted by: bostonquantQuoteThoughts?Over the long run corporate earnings and profits will keep increasing so unless earnings multipliers shrink the market will keep increasing.Any relevant thoughts? I'm trying to tell you as nicely as possible...

QuoteThoughts?Over the long run corporate earnings and profits will keep increasing so unless earnings multipliers shrink the market will keep increasing.

Does your "model" tell you the market is heading up or down?

<t>msperlin,Don't do people's homework assignments. You can point them in the right direction but you aren't helping him by giving him the answer.Quote thx but how can i shift it It's really common sense. If I said that the distribution of a stock payout is normal(100,10) how would you simulate that...

QuoteOriginally posted by: Firas1994hi, please im new in matlab how can i use the command rand to generate a randomvariable thxSimulate a bernoulli and then shift it.

Quote... Where z~N(0,1)Thanks for the laugh.

Look at the assumption of OLS. Quick answer. No.

<t>SAS-----------> Terrible for TSAEviews------------> Most user friendly. Not very scalable. Great if just doing a quick model.R------------------>Not very user friendly. Very scalable. Most flexible with parameters and options. Best IMO if you truly understand TSAMatlab--------------> I've never u...