Displaying 20 results from an estimated 39 matches for "botanik".
2007 Nov 23
4
PCA with NA
...of Na?s in it. So many, that
it is not possible to delete all rows with NA?s and also not
possible, to delete all variables with NA?s.
Is there a function for a principal component analysis, that can deal
with so many NA?s.
Thanks in advance
Birgit
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
2007 Oct 10
3
as.dist with diagonal unequal zero
...w<-as.dist(w, diag = TRUE)
> w
1 2 3 4 5
1 0
2 2 0
3 3 8 0
4 4 9 14 0
5 5 10 15 20 0
Is there perhaps a possibility to give the diagonal as a vector
within as.dist?
I would be glad if somebody could help me.
Greetings
Birgit
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
2007 Jun 28
5
Repeat if
...this syntax i is not known
as a variable. But I don´t know how to say that it is a variable here.
Would be nice if somebody could help me.
Perhaps I´m thinking too complicated and there is an easier way to do
this.
Thanks in advance
Greetings
Birgit
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke@systbot.uzh.ch
[[alternative HTML version deleted]]
2007 Sep 28
2
simple matching with R
...0 0 0
each with 348 rows.
I would like to perform a simple matching but only row 1 compared to
row1, row 2 compared to row 2 (paired).......giving back a number as
dissimilarity for each comparison.
How can i do that?
Thanks in advance
Birgit
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke@systbot.uzh.ch
[[alternative HTML version deleted]]
2007 Oct 08
2
as.ordered
...ract.awn<-as.ordered(bract.awn)
Fehler in sort.list(unique.default(x), na.last = TRUE) :
'x' must be atomic for 'sort.list'
Have you called 'sort' on a list?
What am I doing wrong?
Thanks a lot in advance.
Regards
Birgit
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
2006 Oct 10
5
read.table() and scientific notation
...ut the details myself.
Thanks in advance,
January
--
------------ January Weiner 3 ---------------------+---------------
Division of Bioinformatics, University of Muenster | Schlo?platz 4
(+49)(251)8321634 | D48149 M?nster
http://www.uni-muenster.de/Biologie.Botanik/ebb/ | Germany
2008 May 08
2
LaTeX in system()
...Thanks in advance for any advice!
Christoph
________________________________________________________
Christoph Heibl
Systematic Botany
Ludwig-Maximilians-Universit?t M?nchen
Menzinger Str. 67
D-80638 M?nchen
GERMANY
phone: +49-(0)89-17861-251
e-mail: heibl at lmu.de
http://www.botanik.biologie.uni-muenchen.de/botsyst/heibl/ch-home.html
SAVE PAPER - THINK BEFORE YOU PRINT
2007 Jul 19
1
write.table linebreaks
...utput in Unix
linebreaks that I have to change to McIntosh linebreaks to be able to
Import the data in Excel 2004 for Mac.
Is there a possibility to do this automatically in R and respectively
in the write.table function?
Thanks in advance.
Birgit
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke@systbot.uzh.ch
[[alternative HTML version deleted]]
2007 Jul 19
1
plot3d labels
...ers,
I am a newby using R 2.5.0 on a Apple Power Book G4 with Mac OS X
10.4.10.
Sorry that I ask again such stupid questions, but I haven´t found how
to label the points created with plot3d (rgl).
Hope somebody can help me.
Thanks in advance.
Birgit
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke@systbot.uzh.ch
[[alternative HTML version deleted]]
2007 Aug 23
1
ordered factors in data.frame
...th:
attach (table)
as.ordered (V3)
but this gives me only the V3 Vector as ordred back but in the
data.frame (str(Table)) it is still not ordered.
How can I do that?
Thanks for your help.
I am still a beginner.
Greetings
Birgit
Now I would like to
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke@systbot.uzh.ch
[[alternative HTML version deleted]]
2007 Oct 01
1
Error loading DCluster
...ere is no package spdep in:.....)
es gibt kein Paket 'spdep' in: library(pkg, character.only = TRUE,
logical = TRUE, lib.loc = lib.loc)
Can somebody tell me why I get this error and what I can do against it?
Thanks in advance.
Regards
Birgit
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke@systbot.uzh.ch
[[alternative HTML version deleted]]
2008 May 05
1
Count data in random Forest
...nd the most important variables to divide my dataset as
given in a categorical variable using randomForest.
Is randomForest() able to deal with count data?
Or is there no difference because only the ranks are used in the trees?
Thanks in advance
Birgit
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
175 Jahre UZH
?staunen.erleben.begreifen. Naturwissenschaft zum Anfassen.?
MNF-Jubil?umsevent f?r gross und klein.
19. April 2008, 10.00 Uhr bis 02.00 Uhr
Campus Irchel, Winterthurerstrasse 190, 8...
2007 Sep 20
3
Ambiguities in vector
...5
46 5 34 3 3 1 1
Aski_chart 12 1 1 2 4 5 2 4 29 2 15 4
25 5 2 34 3 1
Aski_deli 2 1 1 2 <NA> 45 12 4 6 2 5
46 5 3 3 4 1 1..........
Greetings
Birgit
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the post...
2008 May 05
1
Problems using rfImpute
...1 ...
$ InfType_sparsely_paniculate: Factor w/ 3 levels "0","1","NA": 1 1 1
3 1 1 1 1 1 1 ...
But there are still NA`s in the data frame. Sorry if this reason is
only ma stupididty and thanks for answering in advance.
B.
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
175 Jahre UZH
?staunen.erleben.begreifen. Naturwissenschaft zum Anfassen.?
MNF-Jubil?umsevent f?r gross und klein.
19. April 2008, 10.00 Uhr bis 02.00 Uhr
Campus Irchel, Winterthurerstrasse 190, 8...
2007 Oct 22
1
plot3d with more than 8 colors
...rts again with the first colour black.
How can get more different colours?
And two further questions: how can I ad a legend to the 3d-plot and
is there now a possibility to export movable 3d files?
Thanks in advance for your help.
Greetings
Birgit
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
2008 Apr 21
1
ANCOVA
...s.factor(y, mu) : - nicht sinnvoll f?r Faktoren
My dataset contains NA`s but if I try to use na.exclude, I got the
same Error message.
I thought the function should use with my dataset. What am I doing
wrong?
Thanks in advance for your help.
Birgit
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
175 Jahre UZH
?staunen.erleben.begreifen. Naturwissenschaft zum Anfassen.?
MNF-Jubil?umsevent f?r gross und klein.
19. April 2008, 10.00 Uhr bis 02.00 Uhr
Campus Irchel, Winterthurerstrasse 190, 8...
2007 Nov 12
1
(no subject)
...;messagesWindow" not found
When I tried to load the Prestige dataset from the car package I got
this:
Error in eval(expr, envir, enclos) : objekt ".__M__coerce" nicht
gefunden
What am I doing wrong?
Thanks in advance for your help.
B
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
2005 Dec 14
1
Looking for a sort of tapply() to data frames
...e very limited.
My kind regards,
January Weiner
--
------------ January Weiner 3 ---------------------+---------------
Division of Bioinformatics, University of Muenster | Schlo??platz 4
(+49)(251)8321634 | D48149 M??nster
http://www.uni-muenster.de/Biologie.Botanik/ebb/ | Germany
2008 Apr 29
1
randomForest and ordered factors
...000, do.trace=1000,
keep.forest=FALSE)
My dataset contains also ordered factors classified as such.
Is randomForest able to deal with it, does it change anything or is
there no difference in using factors or ordered factors?
Many thanks in advance
B.
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
175 Jahre UZH
?staunen.erleben.begreifen. Naturwissenschaft zum Anfassen.?
MNF-Jubil?umsevent f?r gross und klein.
19. April 2008, 10.00 Uhr bis 02.00 Uhr
Campus Irchel, Winterthurerstrasse 190, 8...
2008 May 29
1
boxplot with text and symbols on x
...lad if somebody would have an easier solution.
My second question is about adding symbols (usual male and female
symbol) to the x-axis to label the boxes.
I would be very glad if somebody could help mw with this.
Many thanks in advance.
Greets
Birgit
Birgit Lemcke
Institut f?r Systematische Botanik
Zollikerstrasse 107
CH-8008 Z?rich
Switzerland
Ph: +41 (0)44 634 8351
birgit.lemcke at systbot.uzh.ch
175 Jahre UZH
?staunen.erleben.begreifen. Naturwissenschaft zum Anfassen.?
Weitere Informationen http://www.175jahre.uzh.ch/naturwissenschaft