Displaying 20 results from an estimated 2000 matches similar to: "anova-interaction"
2003 Mar 06
1
Problems with variable types.
Hi all,
I have problems in a dataframe variables types.
Look:
from a loop function:
for(...){
...
dados.fin <- rbind(dados.fin, c(L=j, A=j^2,
Nsp=nsps,
N=length(amosfin$SP),
AmT="am",NAm=nam,
AMST=amst))
dados.fin <- rbind(dados.fin, c(L=j, A=j^2,
2006 Aug 24
1
problem in install on ubuntu
Hi,
the problem is:
/usr/bin/ld: cannot find -lblas-3
collect2: ld returned 1 exit status
make: ** [ape.so] Erro 1
ERROR: compilation failed for package 'ape'
** Removing '/usr/local/lib/R/site-library/ape'
Any help would be appreciated.
Thanks,
------------------------------------
Bruno G. M. Churata
2010 Feb 09
1
Interpretation of high order interaction terms.
I have difficulties in interpreting high order interaction terms in
high-way ANOVA.
According to Introductory Statistics with R by Peter Dalgaard (Section 12.5),
"The exact definition of the interaction terms and the interpretation of their
associated regression coefficients can be elusive. Some peculiar things
happen if an interaction term is present but one or more of the main
effects are
2014 Mar 10
4
[LLVMdev] neon registers llvm using
Hi, Everyone:
Can anyone let me know the default NEON registers llvm going to use with armv7 devices?
For example, d10 and d11 are treated as default zero? I am using Xcode5 + llvm and I got a case that compiler will generate neon codes
" vst.8 {d10, d11}, [r1] "
from C codes:
"int aMV[4];
......
aMV[0] = aMV[1] = aMV[2] = aMV[3] = 0; "
and I
2010 Mar 06
2
Plot interaction in multilevel model
I am trying to plot an interaction in a multilevel model. Here is some
sample data. In the following example, it is longitudinal (i.e., repeated
measures), so the outcome, score (at each of the three time points), is
nested within the individual. I am interested in the interaction between
gender and happiness predicting score.
id <- c(1,1,1,2,2,2,3,3,3)
age <-
2008 Oct 03
2
suggestions for plotting 5000 data points
Dear all,
I have a collection of 5000 entries which represent the evolutionary
rates of 3 animals.
I would like to show the differences between the rates of all 3
animals and have tried using the function parallel (from the lattice
package) and pairs() function.
The parallel function would have been perfect save for the large
number of data (5000). The pairs() function doesn't show
2009 Sep 09
2
Matrix multiplication and random numbers
Dear All
I new to using R and am struggling with some matrix multiplication.
I have two matrices, one containing random numbers, these are multiplied
together to get another matrix which is different each time. When I put in
another for loop to repeat this process a multiple times the matrices are
all the same. I?m sure there is a way to keep the randomness of the
different matrices but I think
2010 Mar 29
2
Need help on matrix manipulation
Dear all,
Ket say I have 3 matrices :
mat1 <- matrix(rnorm(16), 4)
mat2 <- matrix(rnorm(16), 4)
mat3 <- matrix(rnorm(16), 4)
Now I want to merge those three matrices to a single one with dimension
4*3=12 and 4 wherein
on resulting matrix, row 1,4,7,10 will be row-1,2,3,4 of "mat1", row
2,5,8,11 will be row-1,2,3,4 of "mat2" and row 3,6,8,12 will be row-1,2,3,4
of
2013 Feb 01
2
Nested loop and output help
Hello Everyone,
My name is Thomas and I have been using R for one week. I recently found
your site and have been able to search the archives of posts. This has
given me some great information that has allowed me to craft an initial
design to an inquiry I would like to make into the breakdown of McNemar's
test. I have read an intro to R manual and the posting guides and hope I am
not violating
2008 Aug 24
1
Plotting 3 way Anova
Hi
I'd really like to get a bar plot showing the means of my anova data. I have looked everywhere and can only seem to find instructions for 2 way anova's.
I basically want to look at the mean condition of my subjects spilt by age, sex and year (as a factor rather than a continuous variable, hence Anova and not Ancova). and want to show it firstly as a bar graph with standard error. I
2005 Apr 29
1
na.action
Hi,
I had the following code:
testp <- rcorr(t(datcm1),type = "pearson")
mat1 <- testp[[1]][,] > 0.6
mat2 <- testp[[3]][,] < 0.05
mat3 <- mat1 + mat2
The resulting mat3 (smaller version) matrix looks like:
NA 0 0 0
0 NA 0 NA
0 0 NA 2
0 0 2 NA
To get to the number of times a '2' appears in the rows, I was
2008 Aug 29
2
Newbie: Examples on functions callling a library etc.
Hello
R is pretty new to me. I need to write a function that returns three
matrices of different dimensions. In addition, I need to call a function
from a contributed package with the function. I have browsed several
manuals and docs but the examples on them are either very simple or
extremely hard to follow.
Many thanks
Ed
[[alternative HTML version deleted]]
2013 Feb 13
3
date and matrices
Hi Elisa,
Try this:
date1<-format(seq.Date(as.Date("1991.1.1",format="%Y.%m.%d"),as.Date("1996.12.31",format="%Y.%m.%d"),by="day"),"%Y.%m.%d")
?length(date1)
#[1] 2192
mat1<-matrix(c(.314,.314,.273,.273,.236,.236,.236,.236,.273,.314,.403,.314),ncol=1)
res1<-
2010 Jan 27
1
How to sort data.frame
Dear R heleprs
Suppose I have following data
Scenarios
combination_names
series1
series2
Sc1
MAT2 GAU1
7.26554
8.409778
Sc2
MAT2 GAU2
7.438128
8.130275
Sc3
MAT3 GAU1
8.058422
8.06457
Sc4
MAT1 GAU2
8.179855
8.022071
Sc5
MAT3 GAU2
8.184033
8.191831
Sc6
MAT3 GAU2
7.50312
8.232425
Sc7
MAT1 GAU2
7.603291
8.200993
Sc8
MAT1 GAU1
8.221755
8.380097
Sc9
MAT3 GAU2
7.904908
2009 May 19
3
how to calculate means of matrix elements
useR's,
I have several matrices of size 4x4 that I want to calculate means of their
respective positions with. For example, consider I have 3 matrices given by
the code:
mat1 <- matrix(sample(1:20,16,replace=T),4,4)
mat2 <- matrix(sample(-5:15,16,replace=T),4,4)
mat3 <- matrix(sample(5:25,16,replace=T),4,4)
The result I want is one matrix of size 4x4 in which position [1,1] is the
2010 Jan 29
7
Simple question on replace a matrix row
Hello, I have a matrix mat1 of dim [1,8] and mat2 of dim[30,8], I want to
replace the first row of mat2 with mat1, this is what I do:
mat2[1,]<-mat1 but it transforms mat2 in a list I don't understand, I want
it to stay a matrix...
-----
Anna Lippel
--
View this message in context: http://n4.nabble.com/Simple-question-on-replace-a-matrix-row-tp1427857p1427857.html
Sent from the R help
2009 Sep 17
3
generating unordered combinations
Hi,
I am trying to generate all unordered combinations of a set of
numbers / characters, and I can only find a (very) clumsy way of doing
this using expand.grid. For example, all unordered combinations of
the numbers 0, 1, 2 are:
0, 0, 0
0, 0, 1
0, 0, 2
0, 1, 1
0, 1, 2
0, 2, 2
1, 1, 1
1, 1, 2
1, 2, 2
2, 2, 2
(I have not included, for example, 1, 0, 0, since it is equivalent to
0, 0, 1).
I have
2010 Oct 14
1
rbind ing matrices and resetting column numbers
Sorry for the verbose example. I want to row bind two matrices, and all works except I want the column labelled "row" to be sequential in the new matrix, shown as "mat3" here, i.e. needs to be 1:6 and not 1:3 repeated twice. Any suggestions?
Thanks
J
> colnm1 <- c("row","ti","counti")
> colnm2 <-
2003 Sep 15
2
Persp and color
How can I control de "wrap-around" color behaviour in the persp
function ?
I am using something like :
persp(bb[1:100,2:97], col= rainbow(8,start=0.1, end=0.8)))
Depending on the rainbow length value I get several "wrap-around" blocks of
the selected color range...something that I wanted to avoid...
My idea is to use the color in order to make a separation from a
certain
2008 Oct 14
2
help about how can R compute AIC?
Hello.
I need to know how can R compute AIC when I study a regression model?
For example, if I use these data:
growth tannin
1 12 0
2 10 1
3 8 2
4 11 3
5 6 4
6 7 5
7 2 6
8 3 7
9 3 8
and I do
model <- lm (growth ~ tannin)
AIC(model)
R responses:
38.75990
I know the following formula to compute AIC:
AIC=