129 lines
4.2 KiB
R

.ess_weave <- function(command, file, encoding = NULL){
cmd_symb <- substitute(command)
if(grepl('knit|purl', deparse(cmd_symb))) require(knitr)
od <- getwd()
on.exit(setwd(od))
setwd(dirname(file))
frame <- parent.frame()
if(is.null(encoding))
eval(bquote(.(cmd_symb)(.(file))), envir = frame)
else
eval(bquote(.(cmd_symb)(.(file), encoding = .(encoding))), envir = frame)
}
.ess_knit <- function(file, output = NULL){
library(knitr)
frame <- parent.frame()
od <- getwd()
on.exit(setwd(od))
setwd(dirname(file))
## this bquote is really needed for data.table := operator to work correctly
eval(bquote(knit(.(file), output = .(output))), envir = frame)
}
.ess_sweave <- function(file, output = NULL){
od <- getwd()
frame <- parent.frame()
on.exit(setwd(od))
setwd(dirname(file))
eval(bquote(Sweave(.(file), output = .(output))), envir = frame)
}
## Users might find it useful. So don't prefix with .ess.
htsummary <- function (x, hlength = 4, tlength = 4, digits = 3)
{
## fixme: simplify and generalize
snames <- c("mean", "sd", "min", "max", "nlev", "NAs")
d <- " "
num_sumr <- function(x){
c(f(mean(x, na.rm = TRUE)),
f(sd(x, na.rm = TRUE)),
f(min(x, na.rm = TRUE)),
f(max(x, na.rm = TRUE)),
d,
f(sum(is.na(x), na.rm = TRUE)))
}
f <- function(x) format(x, digits = digits)
if (is.data.frame(x) | is.matrix(x)) {
if (nrow(x) <= tlength + hlength){
print(x)
} else {
if (is.matrix(x))
x <- data.frame(unclass(x))
## conversion needed, to avoid problems with derived classes suchs as data.table
h <- as.data.frame(head(x, hlength))
t <- as.data.frame(tail(x, tlength))
for (i in 1:ncol(x)) {
h[[i]] <- f(h[[i]])
t[[i]] <- f(t[[i]])
}
## summaries
sumr <- sapply(x, function(c){
if(is.logical(c))
## treat logical as numeric; it's harmless
c <- as.integer(c)
if(is.numeric(c))
num_sumr(c)
else if(is.factor(c)) c(d, d, d, d, nlevels(c), sum(is.na(c)))
else rep.int(d, length(snames))
})
sumr <- as.data.frame(sumr)
row.names(sumr) <- snames
dots <- rep("...", ncol(x))
empty <- rep.int(" ", ncol(x))
lines <- rep.int(" ", ncol(x))
df <- rbind(h, ...= dots, t, `_____` = lines, sumr, ` ` = empty)
print(df)
}
} else {
cat("head(", hlength, "):\n", sep = "")
print(head(x, hlength))
if(length(x) > tlength + hlength){
cat("\ntail(", tlength, "):\n", sep = "")
print(tail(x, tlength))
}
cat("_____\n")
if(is.numeric(x) || is.logical(x))
print(structure(num_sumr(x), names = snames), quote = FALSE)
else if(is.factor(x)){
cat("NAs: ", sum(is.na(x), na.rm = TRUE), "\n")
cat("levels: \n")
print(levels(x))
}
}
invisible(NULL)
}
.ess_vignettes <- function(all=FALSE) {
vs <- unclass(browseVignettes(all=all))
vs <- vs[sapply(vs, length) > 0]
mat2elist <- function(mat){
if(!is.null(dim(mat))){
apply(mat, 1, function(r)
sprintf("(list \"%s\")",
paste0(gsub("\"","\\\\\"",
as.vector(r[c("Title", "Dir", "PDF", "File", "R")])),
collapse = "\" \"")))
}
}
cat("(list \n",
paste0(mapply(function(el, name) sprintf("(list \"%s\" %s)",
name,
paste0(mat2elist(el), collapse = "\n")),
vs, names(vs)), collapse = "\n"), ")\n")
}
.ess_Rd2txt <- function(Rd) {
fun <- tools::Rd2txt
if(length(formals(fun)["stages"]))# newer R version
fun(Rd, stages = c("build", "install", "render"))
else
fun(Rd)
}
## Local Variables:
## eval: (ess-set-style 'RRR t)
## End: