Displaying 20 results from an estimated 400 matches similar to: "summary.glm() print problem(?) with cor = TRUE"
2008 Oct 09
2
Exporting symnum() result from cor()
Hello,
I am trying to export the results from symnum() while maintain their
readability. I tried using sink to text file and also copying and pasting
but the results end up looking like this:
> symnum(c5.s)
bC bED bEN bLP bLS bPA bPD bPR p
bbContag 1
bbED + 1
bbENN_MN + B 1
bbLPI , , , 1
bbLSI + B B , 1
bbPAFRAC , * * , * 1
bbPD , B B
2002 May 16
1
glm(y ~ -1 + c, "binomial") question
This is a question about removing the intercept in a binomial
glm() model with categorical predictors. V&R (3rd Ed. Ch7) and
Chambers & Hastie (1993) were very helpful but I wasn't sure I
got all the answers.
In a simplistic example suppose I want to explore how disability
(3 levels, profound, severe, and mild) affects the dichotomized
outcome. The glm1 model (see below) is
2002 Apr 30
1
MemoryProblem in R-1.4.1
Hi all,
In a simulation context, I'm applying some my function, "myfun" say, to a
list of glm obj, "list.glm":
>length(list.glm) #number of samples simulated
[1] 1000
>class(list.glm[[324]]) #any component of the list
[1] "glm" "lm"
>length(list.glm[[290]]$y) #sample size
[1] 1000
Because length(list.glm) and the sample size are rather large,
2008 Oct 09
1
Write multiple objects / data frames into a single .csv -- write.csv
Hello,
Is there a way to put multiple data.frames or objects into a single .csv ?
I know I can use sink() to do this for a text file. Is there way to do it
for a .csv?
e.g. for sink()
sink("c5.k.s.p.92.LN.sl.vs.mean.txt")
symnum(c5.k.92.LN.sl.vs.mean)
symnum(c5.s.92.LN.sl.vs.mean)
symnum(c5.p.92.LN.sl.vs.mean)
sink()
Could I put these all into a single .csv, in a similar format to
2011 Mar 30
1
Class noquote to matrix
Hi,
I apologize if the solution is right in front of me, but I can't find anything on how to convert a class of 'noquote' to 'matrix'. I've tried as.matrix and I've tried coercing it by 'class(x)<-matrix', but of course that didn't work. I've been using the function 'symnum' which returns an object of class 'noquote'.
Here is an
2004 Aug 19
1
The 'test.terms' argument in 'regTermTest' in package 'survey'
This is a question regarding the 'regTermTest' function in the 'survey' package. Imagine Z as a three level factor variable, and code ZB and ZC as the two corresponding dummy variables. X is a continuous variable. In a 'glm' of Y on Z and X, say, how do the two test specifications
test.terms = c("ZB:X","ZC:X") # and
test.terms = ~ ZB:X + ZC:X
in
2002 Feb 28
1
trying to build matrix for tests...
Okay, I stumped. I'm trying to build a matrix or data.frame that consists of
values by group. For example,
resid, group
574 0.536196370873122 E
575 0.93191093696265 E
576 -1.27116094894117 A
577 -1.05159666055027 A
578 0.398273458301184 D
579 0.586373126102573 E
580 0.806575304513802 E
581 0.897258393118338 E
582 0.342393324256838 D
583 0.781245511773227 E
I
2006 Aug 31
1
NaN when using dffits, stemming from lm.influence call
Hi all
I'm getting a NaN returned on using dffits, as explained
below. To me, there seems no obvious (or non-obvious reason
for that matter) reason why a NaN appears.
Before I start digging further, can anyone see why dffits
might be failing? Is there a problem with the data?
Consider:
# Load data
dep <-
2006 Mar 16
2
DIfference between weights options in lm GLm and gls.
Dear R-List users,
Can anyone explain exactly the difference between Weights options in lm glm
and gls?
I try the following codes, but the results are different.
> lm1
Call:
lm(formula = y ~ x)
Coefficients:
(Intercept) x
0.1183 7.3075
> lm2
Call:
lm(formula = y ~ x, weights = W)
Coefficients:
(Intercept) x
0.04193 7.30660
> lm3
Call:
2006 Aug 29
1
passing namees
R 2.3.1
I wrote a little script to do some cross correlations. The symbols are
in a text file like so:
symbols.txt
ibm
dd
csco
"""
require(tseries)
symbols <- scan("symbols.txt", what = 'character')
for(line in 1:(length(symbols)-1)) {
assign(symbols[line], get.hist.quote(instrument = symbols[line],
start = "2005-09-01", quote =
2010 Nov 15
2
rotate column names in large matrix
Dear List,
I have a large (1600*1600) matrix generated with symnum, that I am using to
eyeball the structure of a dataset.
I have abbreviated the column names with the abbr.colnames option. One way
to get an even more compact view of the matrix would be to display the
column names rotated by 90 degrees.
Any pointers on how to do this would be most useful. Any other tips for
displaying the
2011 Feb 02
1
Significant codes in mtable
Hi all,
Does anyone know a way to change the significant stars in mtable (package memisc)? The default is
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1,
however I need it to be
Signif. codes: 0 '***' 0.01 '**' 0.05 '*' 0.1 ' ' 1
Kind regards,
Erich
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2009 Jan 31
1
display p-values and significance levels
Hi there,
I got a piece of code for the Iris data which allows to display correlation
coefficients for each Iris species in the lower panel (color coded). I would
now like to add e.g. a "*" to show the significance of each correlation next
to the correlation coefficient.
Furthermore I would like to make a t.test between the species "setosa" and
"versicolor" for
2009 Jul 20
1
Automatically assign symbol for statistical significance to x given value of x
Dear r-help users,
I am using Sweave and Latex to create tables with output from several
statistical test. As an example: I have a grouping variable "group"
with two levels ("x" and "y") which I compare on variables ("a" and
"b").
I have created a table in which means, standard deviations, and the
statistic and p.value resulting from a t.test is
2010 Jul 14
1
Add Significance Codes to Data Frame
I was hoping that there might be some way to attach significance code like
the ones from summary.lm to a dataframe. Anyone know how to do something
like that. Here is the function i'd like to add that functionality to:
add1.coef <- function(model,scope,test="F",p.value=1,order.by.p=FALSE)
{
num <- length(model$coefficients)
add <- add1(model,scope,test=test)
sub <-
2005 Mar 31
1
aggregate question...
R-folks,
Is there a function, like aggregate, that allows users to bin values?
I've got to break down a data frame into classes of 5cm (or something like
it), and I only know how to do it using code like,
signif <- symnum( stems$dbh,
corr = FALSE,
na = FALSE,
cutpoints = c(0,10,20,30,40,999),
symbols = c(0,10,20,30,40) )
2011 Nov 24
1
pairs(), expression in label and color in text.panel
Hello,
I'd like to add custom labels to my pair() plot. These
labels include math expression but they aren't correctly
displayed...
Further, I want that the boxes for the text.panel (diagonal)
have an other background color (grey80). Is that generally
possible? If yes how do I have to set it?
What I've so far is:
panel.cor <- function(x, y, digits=2, prefix="",
2010 Nov 11
1
exploratory analysis of large categorical datasets
Dear List,
I am looking to perform exploratory analyses of two (relatively) large
datasets of categorical data. The first one is a binary 80x100 matrix, in
the form:
matrix(sample(c(0,1),25,replace=TRUE), nrow = 5, ncol=5, dimnames = list(c(
"group1", "group2","group3", "group4","group5"), c("V.1", "V.2", "V.3",
2002 Feb 12
1
getting quotes out of matrix?
I've trying to check for model bias. It was recommended to me that I should
break the residuals into n groups and test to see if the mean is different
from zero. What is the best way to generate the groups. I've generated a
matrix that contains the residuals and groups, but the values all have
quotes around them.
1) how do I get rid of the quotes?
2) is this an acceptable method for
2000 Apr 17
3
Maths in R documentation (PR#523)
The document R-exts contains the following example of using
mathematics in R documentation.
\deqn{p(x) = {\lambda^x\ \frac{e^{-\lambda}}{x!}}
{p(x) = lambda^x exp(-lambda)/x!}
There is a syntax error in there, but that's not my point.
The problem is that using "R CMD Rd2dvi" I find that putting
the alternate forms of the equation on top of each other doesn't
work.