SciViews::R: no fancy characters?

na.omit() -> na_omit() and co + complete_cases().

Plot functions issue warnings for unknown arguments

file_head()

attrNames() or attr_names() like slotNames()

unscale() to revert the effect of scale()?

is.wholenumber()

other xxx. functions for those using na.rm = FALSE like mean(), median(), sd(), var(), quantile(), fivenum(), ...

Refine panel.xxx() functions to avoid warning in case we provide non-par arguments to pairs() and design a better mechanism to define default (colors, line type and weight, etc.).

For PCA, look at ade4 (dudi.pca => c("pca", "dudi"), ellipse, area), FactoMineR (PCA), rrcov (Pca), pcaMethods (PcaRes), psych, nFactors, vegan, rda = special case of pca => c("rda", "cca")), pcaPP, chemometrics (cross-validation), BiodiversityR (broken-stick = PCAsignificance + variable importance = ordiequilibriumCircle) and labdsv packages => how to sort all this and make something coherent with our pcomp object and methods? See also zoonek znd http://www.statmethods.net/advstats/factor.html.

For correspondence analysis, see 'ca' package.

Analyze this: http://obeautifulcode.com/R/How-R-Searches-And-Finds-Stuff/

Translation of this package.