Displaying 5 results from an estimated 5 matches for "meenie".
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weenie
2007 Jan 27
1
Conditional Selection of Columns for Tables
...o calculate the total revenue per sales
representative per status in a table. I have come to a complete stop:
Let's say, we have a data.frame called df with several columns and a
number of rows:
df <- data.frame( nr=101:110, letter=LETTERS[1:10],
name=c(rep("eenie",3), rep("meenie",2), rep("miney",4),
"moe"), revenue=round(runif(10, min=100, max=1000),0),
status=round(runif(10,min=1, max=3),0) )
gives
nr letter name revenue status
1 101 A eenie 764 2
2 102 B eenie 918 2
3 103 C eenie 936 3
4...
2005 Nov 02
2
Anything like associative arrays in R?
...ing
to two different categories, containing N and M values, respectively.
In languages with associative arrays, the typical way to do this is to
define a 2-d associative array; e.g. in Perl one could do
for $i ( 'foo', 'bar', 'baz' ) {
for $j ( 'eenie', 'meenie', 'minie', 'moe' ) {
$table{ $i }{ $j } = read_table( "path/to/data/${i}_${j}.dat" );
}
}
How does one do this in R? In particular, what's the equivalent of
the above in R?
Most importantly, how could I have found out this answer from the
R docs?...
2007 Jan 10
2
select subsets in data frame
...cked that it is indeed a data.frame object and included the
correct header information in line 1. For example purposes, look at this
small object:
<<*>>= (4)
d <- data.frame(A=1:3, Date=c("01.01.07","02.01.07","03.01.07"),
KB=c("Eenie", "Meenie", "Miney") )
d["KB"=="Eenie",] # gives
@
output-start
[1] A Date KB
<0 rows> (or 0-length row.names)
output-end
@
If I follow Venables/ Ripley in Modern Applied Statistics with S, it
should look like this:
<<*>>= (5)
library(MASS)
attach(pa...
1999 Mar 25
1
Y-limits of barplots
Hello everybody,
I frequently have to produce barplots from variables the natural variation
of which is far away from zero. A typical range would be, say from -16 to
-28.
So, the following example should give an "honest" presentation:
x<-c(-20,-22,-21,-28)
barplot(x,beside=T,ylim=c(-18,-30))
But using anything else but "0" for the first element of ylim
leads to strange
2004 Mar 05
1
Problems with SJava instalation
Hi,
I'm try to use the SJava package. The install is OK. In R I have this error
message:
--------------------------
> library(SJava)
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
"/opt/lib/R/site-library/SJava/libs/SJava.so":
libRSNativeJava.so: cannot open shared object file: No such file or
directory
Error in