Displaying 20 results from an estimated 100 matches similar to: "how to convert strings back to values?"
2005 Nov 10
2
error in rowSums:'x' must be numeric
Dear All,
It's Eszter again from Hungary. I could not solve my problem form
yesterday, so I still have to ask your help.
I have a binary dataset of vegetation samples and species as a comma
separated file. I would like to calculate the Jaccard distance of the
dataset. I have the following error message:
Error in rowSums(x, prod(dn), p, na.rm) : 'x' must be numeric
In addition:
2005 Sep 13
6
form_tag & form_remote_tag html id attribute
Hello,
Is there a way to set the html element id for the form_tag and
form_remote_tag on the server side?
I want to have this resultant html...
<form id=''something'' ...
...
</form>
Thank you,
Brian Takita
2024 Oct 13
1
The RV coinertia coefficient to interpret multivariate analysis plots
Dear all community,
My issue is related to the R package (made4) that permits me to calculate
the RV coefficient of co-inertia. However, it is a theoretical question.
And if I am not mistaken, the list Usenet groups sci.stat.consult is not
currently active.
Let me explain briefly:
Through different microbiota datasets, I have plotted PCoA, db-RDA and
sPLS-DA using 3 different types of
2013 Apr 11
1
Ordination Plotting: Warning: Species scores not available
Hi,
I am working with a species-by-trait .csv file (columns=traits, rows=species) and get the following warning message when trying to plot results of both metaMDS and pcoa:
"Warning message:
In ordiplot(x, choices = choices, type = type, display = display, :
Species scores not available"
I am using a Gower's transformation in both procedures within the metaMDS or pcoa
2005 Oct 04
3
[Q] file_column help needed
Hi all,
I''m trying to use file_column to upload a picture but
I''m getting the following error:
"cannot convert nil into String"
caused by the last line in
FileColumnHelper::url_for_file_column(object_name,
method)
url << object.send("#{method}_relative_path")
I don''t have any images uploaded for existing entries
so does this not
2005 Mar 14
1
Significance of Principal Coordinates
Dear all,
I was looking for methods in R that allow assessing the number of
significant principal coordinates. Unfortunatly I was not very
successful. I expanded my search to the web and Current Contents,
however, the information I found is very limited.
Therefore, I tried to write code for doing a randomization. I would
highly appriciate if somebody could comment on the following approach.
2007 Sep 24
1
save 3dplot to file
I think it is an easy question but i haven´t found a solution since I
am r beginner.
I did this
plot3d(PCoA, type="p", col=rainbow(1000),size=5)
text3d(PCoA, text=Nam)
How can I save it including the labels to a jpg-file?
Thanks in advance.
Birgit
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
2007 Oct 22
1
plot3d with more than 8 colors
Hello R user and helper!
I would like to get a 3d plot with coloured points.
I did that:
colors<-c(rep("2",7), rep("3",12), rep("4", 24), rep("5", 13), rep
("6", 8), rep("7", 51), rep("8", 1), rep("9", 15), rep("10", 53), rep
("11",3), rep("12",3), rep("13", 8),
2011 Oct 03
4
distance coefficient for amatrix with ngative valus
Hi,
I need to run a PCoA (PCO) for a data set wich has both positive and negative values for variables. I could not find any distancecoefficient other than euclidean distace running for the data set. Are there any other coefficient works with negtive values.Also I cannot get summary out put (the eigen values) for PCO as for PCA.
Thanks.
Dilshan
[[alternative HTML version deleted]]
2003 May 09
1
Principal coordinates analysis
Dear all,
Does anyone know how to run Principal Coordinates Analysis (PCoA) from a
squared euclidean dissimilarity matrix with R ?
Thanks,
*************************
Arnaud DOWKIW
Department of Primary Industries
J. Bjelke-Petersen Research Station
KINGAROY, QLD 4610
Australia
T : + 61 7 41 600 700
T : + 61 7 41 600 728 (direct)
F : + 61 7 41 600 760
**************************
2006 Jan 17
1
How to validate expiry date
Hi
How can I do the validation of date expiry (if the date is less
than today) in ruby.Can I do it using the validate method or other def
in the model class?
Thanks in advance,
Sainaba.
--
Posted via http://www.ruby-forum.com/.
2006 Feb 21
4
rekord id-je .create után
Hali!
Mi a legegyszer?bb m?dja annak, hogy egy pl. note = Notes.create(...)
ut?n megkapjam az adott note ActiveRecord id-j?t (primary key)? Sajnos
ez ugye 0, mivel frissen lett l?trehozva...
?tlet?
G?bor
2006 Feb 07
0
Subsetting matrices
Dear R-Helpers,
I am working on a dataset containing ca. 500 specimens of 17 different
species. The data is three text columns, followed by ca 70 columns of
binary data.
I'm trying to write a function that will allow me to interactively
exclude species using the inofrmation in the third text column. My
function, matrix.slicer, appears to work as I intend. However, when I
pass the
2006 Apr 24
6
Error starting lighttpd
Hi, I''m getting the following error message when I try to start lighttpd:
BEGIN ERROR:
$ script/server
=> Booting lighttpd (use ''script/server webrick'' to force WEBrick)
=> Rails application started on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server (see config/lighttpd.conf for options)
2006-04-24 03:29:39: (mod_fastcgi.c.1022)
2013 Jan 19
0
Cluster Analysis and PCoA (mixt variables)
Hello everyone,
I mail you because of my lake of knowlegde regarding statistics.
I'm using the CA and PCoA (but maybe should I use some other techniques) to
determine the differences and similarities between a large sample of plants
using different kind of traits through matrix of mixte variables.
I understood that the daisy() function using the gower metric and defining
the different type
2007 Jan 11
1
zero margin / marginless plots
Hi,
I'd like to produce a marginless or zero margin plot so that the pixel
coordinates represent the mathematics.
xy<-data.frame(x=c(0,1,1,0,0),y=c(0,1,0,0,1))
png('junk.png',width=300,height=300)
par(mar=c(0,0,0,0))
plot(xy$x,xy$y,xlim=c(0,1),ylim=c(,1))
dev.off()
The resultant file has about a 10 pixel margin around these lines, and I'm
not sure what parameter or function
2004 Aug 25
0
Eltemette az elefánt-trutyi
--------------------------------------------------
Eltemette az elef?nt-trutyi
Paderborn, N?metorsz?g Friedrich Riesfeldt ?llatkerti gondoz? sz?kreked?ses elef?ntj?nak beadott 22 adag ?llati hashajt?t ?s megetette egy v?ka szederrel, f?g?vel ?s szilv?val. A bedugult vastagb?r? v?g?l els?lt - ?s megfojtotta a gondoz?t 200 font trutyival. A vizsg?lat szerint a 46 ?ves Friedrich megpr?b?lt a beteg
2013 May 01
1
Combine multiple tables into one
Hi,
May be this helps:
dat1<- as.data.frame(table1)
?dat2<- as.data.frame(table2)
names(dat2)<-c("V3","V4")
library(plyr)
res<-join(dat1,dat2,type="full")
?res[is.na(res)]<- 0
?res
#? V1 V2 V3 V4
#1? 1? 1? 0? 0
#2? 1? 2? 0? 0
#3? 0? 0? 0? 1
#4? 0? 0? 0? 4
?combinedtable<-as.matrix(res)
?colnames(combinedtable)<- NULL
?combinedtable
#???? [,1] [,2]
2024 Nov 22
1
Tomar nombres desde la matríz
Estimados
Estoy probando una alternativa, la cual no tiene ranef
Pero puedo saber cuáles son desde la siguiente matriz, 4 , 5, 6, 7, 8 son hijos de sire1, sire3 y sire4.
Obtengo los resultados, pero ¿como puedo tomar los nombres de filas y columnas, sire1, sire2, sire3, 4, 5, 6, 7, y 8, de forma tal de hacer legible el resultado para cada animal? Lógicamente, un listado de números sin decir
2005 Oct 20
3
different F test in drop1 and anova
Hi,
I was wondering why anova() and drop1() give different tail
probabilities for F tests.
I guess overdispersion is calculated differently in the following
example, but why?
Thanks for any advice,
Tom
For example:
> x<-c(2,3,4,5,6)
> y<-c(0,1,0,0,1)
> b1<-glm(y~x,binomial)
> b2<-glm(y~1,binomial)
> drop1(b1,test="F")
Single term deletions
Model:
y ~