On 13/07/10 19:16, Erik Iverson wrote:
Raubertas, Richard wrote:
I agree that 'list' is a terrible package name, but only secondarily
because it is a data type. The primary problem is that it is so generic
as to be almost totally uninformative about what the package does.
For some reason package writers seem to prefer maximally
uninformative names for their packages. To take some examples of
recently announced packages, can anyone guess what packages 'FDTH',
'rtv', or 'lavaan' do? Why the aversion to informative names along
the lines of
'Freq_dist_and_histogram', 'RandomTimeVariables', and
'Latent_Variable_Analysis', respectively?
I'm sure it's part tradition...
ls
cat
rm
cp
mv
su
No need to leave R, which has some 9 one-letter symbols, 35 two-letter
symbols, and 121 three letter symbols in the base and core packages. It
is just unreal. (The equivalent numbers from my Linux system are 3, 56,
and 148, and one of those one-letter commands is R!!)
Quiz yourself on these:
"c" "C" "D" "F" "I" "q" "s" "t" "T"
"ar" "as" "bs" "by" "cm" "de" "df" "dt" "el" "gc" "gl" "if" "Im" "is"
"lh" "lm" "ls" "lu" "ns" "pf" "pi" "pt" "qf" "qq" "qr" "qt" "Re" "rf"
"rm" "rt" "sd" "te" "ts" "VA" "vi"
"abs" "acf" "ACF" "AIC" "all" "aml" "any" "aov" "Arg" "ave" "bam" "bcv"
"bdf" "BIC" "bmp" "BOD" "box" "bxp" "cat" "cav" "ccf" "cch" "cd4" "cgd"
"co2" "CO2" "col" "cor" "cos" "cov" "cut" "DDT" "det"
"dim" "Dim" "dir" "end" "exp" "fft" "fgl" "fir" "fix" "for" "gam" "get"
"glm" "gls" "Gun" "hat" "hcl" "hsv" "IGF" "IQR" "Kfn" "knn" "lag" "lcm"
"lda" "lme" "log" "lqs" "mad" "Map" "max" "mca" "min" "mle" "Mod" "new"
"nlm" "nls" "npk" "nsl" "OME" "one" "Ops" "pam" "par" "pbc" "PBG" "pdf"
"pie" "png" "ppr" "qda" "raw" "rep" "rev" "rfs" "rgb" "rig" "rle" "rlm"
"row" "rug" "seq" "sin" "SOM" "SSD" "SSI" "stl" "str" "sub" "sum" "svd"
"svg" "tan" "tar" "tau" "tcl" "tmd" "try" "tsp" "two" "ucv" "unz" "url"
"var" "x11" "X11" "xor"
Generated from R --vanilla with:
for (p in c("base", "boot", "class", "cluster", "codetools", "datasets",
"foreign", "graphics", "grDevices", "grid", "KernSmooth", "lattice",
"MASS", "Matrix", "methods", "mgcv", "nlme", "nnet", "rpart", "spatial",
"splines", "stats", "stats4", "survival", "tcltk", "tools", "utils"))
library(p, character.only=TRUE)
rm(p)
one <- unique(grep("^[[:alnum:]]+$", apropos("^.$"), value=TRUE))
two <- unique(grep("^[[:alnum:]]+$", apropos("^..$"), value=TRUE))
three <- unique(grep("^[[:alnum:]]+$", apropos("^...$"), value=TRUE))
and from the bash shell with
ls -1 {/usr,}/bin/? 2>/dev/null
ls -1 {/usr,}/bin/?? | perl -ne 'print substr $_,-3' | sort -u | wc -l
ls -1 {/usr,}/bin/??? | perl -ne 'print substr $_,-4' | sort -u | wc -l
Allan
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
