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Monthly Archives: March 2014
US market portrait 2014 week 13
US large cap market returns. Fine print The data are from Yahoo The S&P 500 stocks are used (as implied by S&P on 2014 January 11) that still survive with the same symbol The initial post was “Replacing market indices” The R code is in marketportrait_funs.R — you are free to use these functions however … Continue reading
US market portrait 2014 week 12
US large cap market returns. Fine print The data are from Yahoo The S&P 500 stocks are used (as implied by S&P on 2014 January 11) that still survive with the same symbol The initial post was “Replacing market indices” The R code is in marketportrait_funs.R — you are free to use these functions however … Continue reading
BurStFin R package version 1.02 released
More efficiency and an additional function in the new version on CRAN. Variance estimation The major functionality in the package is variance estimation: Ledoit-Wolf shrinkage via var.shrink.eqcor statistical factor model (principal components) via factor.model.stat There have been a number of previous blog posts on both factor models and Ledoit-Wolf shrinkage. Positive-definiteness The default value of … Continue reading
Posted in Quant finance, R language
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US market portrait 2014 week 11
US large cap market returns. Fine print The data are from Yahoo The S&P 500 stocks are used (as implied by S&P on 2014 January 11) that still survive with the same symbol The initial post was “Replacing market indices” The R code is in marketportrait_funs.R — you are free to use these functions however … Continue reading
US market portrait 2014 week 10
US large cap market returns. Fine print The data are from Yahoo The S&P 500 stocks are used (as implied by S&P on 2014 January 11) that still survive with the same symbol The initial post was “Replacing market indices” The R code is in marketportrait_funs.R — you are free to use these functions however … Continue reading
US market portrait 2014 week 9
US large cap market returns. Fine print The data are from Yahoo The S&P 500 stocks are used (as implied by S&P on 2014 January 11) that still survive with the same symbol The initial post was “Replacing market indices” The R code is in marketportrait_funs.R — you are free to use these functions however … Continue reading