[RkWard-devel] quantile plug-in

[Thomas Friedrichsmeier]

> a=c(1,2,3,4,5,6,7,8,9,10)
> quantile(a, probs=seq(0,1,0.1))
> 0%  10%  20%  30%  40%  50%  60%  70%  80%  90% 100%
>  1.0  1.9  2.8  3.7  4.6  5.5  6.4  7.3  8.2  9.1 10.0

[...]

>         cat ("<TR><TD>dummy</TD><TD>", rk.temp,"</TD></TR>")
> But "0%  10%  20%  30%  40%  50%  60%  70%  80%  90% 100%" will not be
> shown within the table. What must be done to get it working?

The method Pierre has suggested (using R2HTML / rk.print ()) is the way to go. 
Just to solve the mystery of what went wrong, however:

The standard thing R does when you type in a expression (without assigment), 
is to call print on it. I.e., writing:

"test"

is equivalent to writing:

print ("test")

and both will result in:

[1] "test"

However, note the subtle difference, when instead, you write:

cat ("test")

which results in:

"test"

instead. The key concept behind this is that cat () just uses the core object 
values. print (), on the other hand, may use some additional information on 
the objects it operates on, such as their class, or so called attributes.
In this case, the "0% 10%..." is stored in the "names" attribute, and can be 
fetched using:

names (rk.temp)

or

attributes (rk.temp)

Two further calls, which help to understand, how R treats some special objects 
are (but these don't show anything interesting in this particular case):

class (rk.temp)
unclass (rk.temp)

Well, again, just use the methode Pierre suggested, instead. However, this is 
the technical background.

Regards
Thomas
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