Portfolio Optimisation with R 

informative and useful. nice :)

Thank you!!!

Please help! Everything works until i get up to this rOptPort10(LogRet,0.005) then i get this error: Error in rOptPort10(LogRet, 0.005) : could not find function "rOptPort10"

Thanks for the video - appreciate this! but " matrix D in quadratic function is not positive definite!" how do I solve this error please?

Please Brother, Regarding the Stochastic Frontier Production, Is R software also estimated Technical efficiency and allocative efficiency in the econometrics? Thanks

ggplot is not working in R.3.4. so what else i can use?