Hello,
I want to select in a column of a dataframe all numbers smaller than a
value x
but when I type in test<-(RSF_EU$AREA<=x) I receiv as answer:
> test
[1] TRUE FALSE FALSE TRUE TRUE TRUE FALSE FALSE TRUE TRUE TRUE
FALSE TRUE TRUE TRUE TRUE TRUE
[18] TRUE TRUE TRUE TRUE FALS
Well after installing a debian package of the cran mirors and reconfiguning the
xorg.conf as yuelin li suggested the hist() and other graphical commands now
work properly.
Thanks to the fruitful contributions.
Thomas
Quoting Oleg Sklyar <[EMAIL PROTECTED]>:
> > Good point. But on my systems , th
Hello,
i have a problem with creating histograms and plots under ubuntu linux.
After creating a vector "test" i want to make a histogram, but the following
error appears:
> hist (test)
Error in X11() : could not find any X11 fonts
Check that the Font Path is correct.
Does anybody know this probl
Hello,
I have a column which is filled by numbers, but is attributed as list.
How can I change the attributes into numeric to use statistic operations?
Greetings, Thomas
--
Thomas Preuth
Swiss federal institutes for forest, snow and landscape research WSL/SLF
Fluuelastrasse 11
CH- 7260 Davos
Hello,
I`m a newbie to R so maybe this question is boring, but I have a large
table with several empty missing values, which come out as "NA". How can
i ignore them or replace them by another number?
Greetings, Thomas
__
R-help@stat.math.ethz.ch mail
delete a entire vector of a dataframe
Hello,
i want to delete a vector and tried "rm (t.d$V712)". This did not work,
message was, could not find variable. I thought the $ defines the vectro
in a dataframe, when I just type "t.d$V712" the content of this vector
is displayed.
Greetings, Thomas
Hello,
I use an imported dataframe and want to extract the mean value for one
column.
after typing "mean (rae.df$VOL_DEP)" I receive
"[1] NA
Warning message:
Argument ist weder numerisch noch boolesch: gebe NA zurück in:
mean.default("rae.df$POINT_Y_CH") "
But when i look into the dataframe the