Displaying 13 results from an estimated 13 matches for "1.456".
Did you mean:
1.4.6
2008 Jun 05
2
Securities earning covariance
Good morning,
I am a new R user and I am trying to learn how to use it.
I am trying to solve this problem.
I have a dataframe df of daily securities (for a year) earnings as
follows:
SEC_ID DAY EARNING
IT0000001 20070101 5.467
IT0000001 20070102 5.456
IT0000001 20070103 4.954
IT0000001 20070104 3.456
..........................
IT0000002 20070101 1.456
IT0000002 20070102 1.345
2008 Mar 06
2
How to hold a value(Mean sq) with a string
Hi all:
Can someone advice me on how to hold the residuals
Mean sq value on a string
so it can be used in other calculations.
I was trying something like this:
Msquare<-dfr$Mean sq but fails..Thanks
dfr <- read.table(textConnection("percentQ
Efficiency
1.565 0.0125
1.94 0.0213
0.876 0.003736
1.027 0.006
1.536 0.0148
1.536 0.0162
2.607 0.02
1.456 0.0157
2.16 0.0103
2011 Dec 26
4
Summary tables of large datasets including character and numerical variables
Hello !
I am attempting to switch from being a long time SAS user to R, and would
really appreciate a bit of help ! The first thing I do in getting a large
dataset (thousands of obervations and hundreds of variables) is to run a SAS
command PROC CONTENTS VARNUM command - this provides me a table with the
name of each variable, its type and length; then I run a PROC MEANS - for
numerical
2008 Dec 09
3
Significance of slopes
Hello R community,
I have a question regarding correlation and regression analysis. I have
two variables, x and y. Both have a standard deviation of 1; thus,
correlation and slope from the linear regression (which also must have
an intercept of zero) are equal.
I want to probe two particular questions:
1) Is the slope significantly different from zero? This should be easy
with the lm
2011 Dec 04
1
syncing imap servers with imapsync
hello list,
I am attempting to sync two imap servers using the imapsync perl script. It seems handy and easy.
Here's what happens when I try to do this:
#
# Postfix master process configuration file. For details on the format
# of the file, see the master(5) manual page (command: "man 5 master").
# -o smtpd_sasl_auth_enable=yes
# -o
2007 Aug 11
1
IO Error: Error reading the segment infos.
Hi all,
I''m using ferret and acts_as_ferret on Win XP. Trying to index a
location table with over 2,5 Mio. rows in UTF-8 I''m getting the error:
"IO Error: IO Error occured:
Error reading the segment infos. Store listing was ..."
The error occurs after some hours of running. The index file system
looks like this after the abort:
11.08.2007 12:30 <DIR>
2008 Mar 07
0
How to Estimate Covariance by Week based on a linear regression model
Hi all:
I have always used SPSS to estimate weekly
covariance based on a linear regression model
but have to hard code the model Std. Error and the
Mean-Square and then execute
one week a the time. I was wondering if someone
could give me an idea on how to estimate
weekly(WK) covariance using the summary and anova of
"dfr"(lineal model below). I have
to do this for 52
2009 Jun 02
0
Conducting data modelling on weighted data using R
Hello,
I am starting to use R for various analyses, for example I use the ca package to do Correspondence Analysis. I am also looking to use packages such as:
pls Partial Least Squares
plspm Partial Least Squares Path Modelling
However, although I can use packages such as these on un-weighted data there does not appear to be a facility to take account of weighted data.
I am a
2010 Jan 07
2
Extract p-value from linear model
Dear all,
I have the following question.
Is it possible in R to call for the p-value directly in a model like this
a <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
b <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
summary(lm(a~(b+0)))
or even in this
a <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
b <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
2010 Apr 24
0
'geepack' and 'gee' package outputs
Hi, having used both the gee pacakge and the geepack package, i am unsure of
how to interpret the results.
Here are the results from the geeglm function from the geepack package
> gee2<-geeglm(data$erythema~data$product, data = data, id=subject,
> family=binomial, corstr="independence")
Warning message:
In model.response(mf, "numeric") :
using
2010 Nov 22
1
how do remove those predictor which have p value greater than 0.05 in GLM?
Hi R user,
I am a kind of an intermediate user of R. Now I am using GLM model (library
MASS, VEGUS). I used a backward stepwise logistic regression, but i got a
problem in removing those predictors which are above 0.05. I don't want to
include those variables which were above 0.05 in final backward stepwise
logetsic regression model.
for example: first I run the model,
2008 Jun 06
6
Subsetting to unique values
I want to take the first row of each unique ID value from a data frame.
For instance
> ddTable <-
data.frame(Id=c(1,1,2,2),name=c("Paul","Joe","Bob","Larry"))
I want a dataset that is
Id Name
1 Paul
2 Bob
> unique(ddTable)
Will give me all 4 rows, and
> unique(ddTable$Id)
Will give me c(1,2), but not accompanied by the name column.
2010 Nov 24
0
4. Rexcel (Luis Felipe Parra)-how to run a code from excel
Hi Louis,
It's simple to run a r script from the excel spreadsheet.
Just write your code, source("C:\\Quantil
Aplicativos\\Genercauca\\BackwardSelectionNC.r"), into a cell of a
workingsheet. Then right-click the cell and select "run code" in the pop-up
menu.
Hope this will help you.
Best,
Bernard
-----????-----
???: r-help-bounces at r-project.org [mailto:r-help-bounces