Displaying 20 results from an estimated 300 matches similar to: "Read a file"
2007 Aug 20
1
LDA decission boundaries
Hello,
I would like to plot the results of a LDA analysis plotting the
discriminant scores with the decission boundaries on it with rggobi. I
have GGobi already installed on my computer. I have three classes, so
the plot would be LD1xLD2 plus the decission boundaries. Here there is
the code I use make the plot:
library(MASS)
data <- zgcppr273K.pca$x[,1:7]
Tumor <-
2009 Feb 17
3
Combination
Hello,
I have a sequence of numbers:
seq(1:50)
and I would like to have all the possible combinations with this numbers
without repeating any combination:
11, 12, 13, ... ,22,23,24,...
How can I do it?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s-
2008 Mar 18
9
Needs an administrator user to install
I'm trying to install a scientific app called Bruker TopSpin and during the installation process it asks for the name of an administrator user (<mymachine>\Administrator, by default). However, no matter what I try the app keeps on showing the following message:
...Cannot find the user Administrator (or whoever)
And thus the installation process cannot succeed.
Any idea to workaround
2011 Oct 29
2
Bruker Topspin 3.1
Hello everybody!
Started to install wine today and I have to say - Great work. Nevertheless
I ran into some problems while trying to install Bruker Topspin 3.1 (Scientific NMR Analysis Tool). But unfortunately I cannot install it. I have seen that there is a topic about an old Topspin version but it didn't help me. As I am starting to get familiar with wine the chance is great that the
2008 Aug 27
3
Closest value
Hello,
I have this command:
x.axis <- seq(from=0.5, to=4.5, length.out=13112)
How can I which of the x.axis components is the closest to a given
value, for example 3.2?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n
2008 Jul 09
3
Expression in axis
Hello,
I am creating a plot and I would like to know how to put this expression
to the y axis
?mol/10^6 cells
I've tried some combinations using the expression() function, but none
of them worked.
Any idea?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de
2007 Nov 22
2
Cutting a vector
Hello,
I have a vector, lets say
x <- 1:50
I would like it to be cut at certain points, being for example 1:5,
6:11, 12:17, ...
How can I do it? I have tried the cut() function, but I don not know how
to place the cutting points properly.
Best regards,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
2010 May 19
3
Pattern matching and replacement in matrix
Hello,
Is there any function like gsub(), that can match and replace patterns
in a matrix or a data frame?
Cheers!
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Tlf. +34 93 581 1910
Fax: +34 93 581 1573
2008 Feb 20
3
Rd to latex
Hello,
I would like to convert an Rd object to a latex file, so that I can put
it in my thesis. How can I do it? I tryed latex(), but it only works for
code...
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en
2008 Feb 19
1
Interpolation between 2 vectors
Hello,
I have two vectors, one with 13112 points and the other one with 10909.
I wonder if there is a way to interpolate the data so the shorter
vectors has the same number of points as the longer one.
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s-
2008 Nov 20
2
Fitting a model
Hello,
This is a very basic question, but I don'y know the answer. I have these
data
delta <-
c(28.6-8.825,28.6-8.828,28.6-8.836,28.6-8.845,28.6-8.897,28.6-8.944,28.6-9.027,28.6-9.091,28.6-9.263,28.6-9.4,28.6-9.7,28.6-9.981,
28.6-10.287,28.6-10.48,28.6-10.684,28.6-10.875)
ph <- c(4.4,4.6,4.8,5,5.2,5.4,5.6,5.8,6,6.2,6.4,6.6,6.8,7,7.2,7.4)
2008 Jun 06
1
lsmeans
Hello,
I have the next function call:
lme(fixed=Error ~ Temperature * Tumour ,random = ~1|ID, data=error_DB)
which returns an lme object. I am interested on carrying out some kind
of lsmeans on the data returned, but I cannot find any function to do
this in R. I'have seen the effect() function, but it does not work with
lme objects. Any idea?
Best,
Dani
--
Daniel Valverde Saub?
Grup
2008 Sep 01
2
Text
Hello,
I would like to place some text that should appear in the same position
of the graphic device, preferably outside the plotting area, regardless
the x and y axes limits. How can I do this?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
2008 Aug 27
1
Combine x-axis labels size
Hello,
I would like to combine different label sizes in the same x-axis, for
example
1 2 3 4 5 6 7 8 9
How can I do it?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
2008 Jun 02
1
LDA and centroids
Hello,
I have carried out an lda analysis using the lda function of MASS
package. I have plotted the LD1xLD2 to represent the data. Now I would
like to get the centroids for each group of data and plot it on the
LD1xLD2 graph. How can I get the centroid value from the lda object?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la
2008 Feb 26
1
GLM
Hello,
I am trying to perform a glm analysis on a 68x13113 matrix (named
data.spect). The first column corresponds to the predictor
(data.spect[,1]) and the rest to the response variables
(data.spect[,2:13113]). When I try this code
glmObject <- glm(data.spect[,2:13113]~data.spect[,1])
I get the following error:
Error: (subscript) logical subscript too long
Could anyone help me on
2008 Feb 20
1
insert() function
Hello,
I am trying to insert a certain number of points into a certain position
of a vector with this code:
x <- seq(1:10909)
x1 <- c(13112-10909)
spect1 <- rnorm(13112)
interpol <- approx(x,spect1,xout=c(seq(from=1, by=((10909 - 1)/(x1 -
1)), length.out=x1)))
pos <- round(interpol$x,0)
intensities <- interpol$y
spect2 <- insert(spect1,ats=pos,values=intensities)
2008 May 24
1
Problems with lme
Hello,
I want to perform an lme on a database with this structure:
ID Sequence Temperature Tumour Error
1 5 0 1 8.721872e-08
1 5 0 2 8.695348e-08
1 5 0 3 2.019604e-13
1 5 37 1
2008 Mar 06
2
Clustering large data matrix
Hello,
I have a large data matrix (68x13112), each row corresponding to one
observation (patients) and each column corresponding to the variables
(points within an NMR spectrum). I would like to carry out some kind of
clustering on these data to see how many clusters are there. I have
tried the function clara() from the package cluster. If I use the matrix
as is, I can perform the clara
2008 Jun 19
1
ANOVA error
Hello,
I have a dataframe named myMatrix with the structure
Treatment Time Cr mIb ...
Being the treatment and time the predictors and Cr, mIb and so on the
response variables. When I call
Cr.aov <- aov(Cr~Treatment, data=myMatrix)
I got this error:
Error in storage.mode(y) <- "double" :
invalid to change the storage mode of a factor
In addition: Warning message:
In