search for: covrob

Displaying 3 results from an estimated 3 matches for "covrob".

2007 Feb 05
1
strange error in "robust" package
...er had any problems. Actually last time i used it was last Friday very successfully. Anyway, today anytime i want to use the function "fit.models" i get the following error even if i use the example form the help file: data(woodmod.dat) woodmod.fm <- fit.models(list(Robust = "covRob", Classical = "cov"), data = woodmod.dat) Error in donostah(data, control) : object ".Random.seed" not found Error in model.list[[i]] : subscript out of bounds Does anybody know what is wrong? Thanks, Monica Palaseanu-Lovejoy USGS / ETI Pro St. Petersburg, FL ________...
2012 Jul 05
2
skipped correlation
hello,Everyone! I am a freshman to use R. Can anybody tell me where has scor function which achieves the skipped correlation? Thank you very much! Bset wishes! Jiaolong Qin [[alternative HTML version deleted]]
2009 May 26
2
(OT) Does pearson correlation assume bivariate normality of the data?
...e to be univariate normal in order to correctly estimate the significance of the correlation? If the above is true, what are the preferable alternatives for non-gaussian data (including heavy-tailed normal)? non-parametric tests (spearman, kendall)? the robust MASS::cov.mcd, rrcov::CovOgk, robust::covRob()? hypothesis testing via Permutation Tests [4]? is there a robust cor.test? other robust tests of independence? Thank you, Liviu [1] http://www.nabble.com/Correlation-on-Tick-Data-tp18589474p18595197.html [2] http://en.wikipedia.org/wiki/Correlation#Sensitivity_to_the_data_distribution [3] http:...