Displaying 20 results from an estimated 2000 matches similar to: "alternative to multiple t-test to find steady-state"
2013 Apr 12
2
model frame and formula mismatch in model.matrix()
Hello everyone,
I am trying to fit the following model
All X. variables are continuous, while the conditions are categoricals.
model <- lm(X2
2009 Jun 24
2
change the height or scale of the y axis
Hallo, All,
I have a question about changing the height or scale of the y axis. When I
use following two R codes, I can get two plots. Please look at the y axes,
the number of indices (x1, x2, ?) on the y axis in the first plot is smaller
than that in the second plot, and hence the space between any two indices in
the first plot is wider than that in the second plot. As the number of
indices
2012 May 25
2
Query about creating time sequences
Hi All,
I have a query about time based sequences. I know such questions have been
asked a lot on forums, but I couldnt find the exact thing that I was
looking for.
I want to create a time-based sequence which will mimic the trading window
AND would span multiple days. Something like below:
"2011-01-03 09:15:00 IST"
"2011-01-03 09:15:01 IST"
....
....
....
"2011-01-03
2018 Mar 14
0
truncation/rounding bug with write.csv
My apologies for not including sessionInfo(), and I'm a bit angry at myself
for that. Retrying in a fresh session of R, I get different results. More
specifically, I get the expected result where accuracy is the same in the
first and the last line. As I didn't include my sessionInfo() in my
previous mail, I can't figure out why I now have a different result. So I'm
positive
2004 May 11
1
calling data frames
Dear List,
I've around 1000 *.txt files, I've generate with other software.
I've now done the following code (below).
My question is how can I automate this (with do.call () ?), so it could be
done for all the *.txt files.
Thanks in advance,
Rog??rio
names<- list.files()
file <- "BLU_Var_%04d.txt"
for(i in 1:1000){
2010 May 11
1
Help with Names
Hi - a newbie question, if someone can please help....
I want to change X1, X2,,.....to X.1 X.2 etc in the names below. I am using
the Principal Component Regression function (pcr) and it seems to want it
this way
> datap3.pcr <- pcr(water ~ X, 10, data = datap3, Validation ="cv")
Error in model.frame.default(formula = water ~ X, data = datap3) :
invalid type (list) for
2018 Mar 14
0
truncation/rounding bug with write.csv
What OS are you on? On Ubuntu 17.10 with R 3.4.3 all seems well (see
below for your example, I just added a setwd()).
[ That said, I long held a (apparently minority) view that csv is for all
intends and purposes a less-than-ideal format. If you have that much data,
you do generally not want to serialize it back and forth as that is slow, and
may drop precision. The rds format is great for R
2009 Aug 24
0
R survival package error message - bug?!
Dear all,
I have encountered a weird behaviour in R
survival package which seems to me to be a bug.
The weird behaviour happens when I am using
100 variables in the ridge function when calling
coxph with following formula Surv(time = futime,
event = fustat, type = "right") ~ ridge(X1, X2,
X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13,
X14, X15, X16, X17, X18, X19, X20, X21, X22,
2018 Mar 14
0
truncation/rounding bug with write.csv
I ran this code in RStudio Server on a linux machine, but I don?t know the version offhand. I will try to get it tomorrow. Thanks.
Thanks,
Greg Michaelson
www.datarobot.com
704-981-1118
> On Mar 14, 2018, at 4:47 PM, Joris Meys <jorismeys at gmail.com> wrote:
>
> To my surprise, I can confirm on Windows 10 using R 3.4.3 . As tail is not recognized by Windows cmd, I replaced
2018 Mar 14
2
truncation/rounding bug with write.csv
To my surprise, I can confirm on Windows 10 using R 3.4.3 . As tail is not
recognized by Windows cmd, I replaced with:
system('powershell -nologo "& "Get-Content -Path temp.csv -Tail 1')
The last line shows only 7 digits after the decimal, whereas the first have
15 digits after the decimal. I agree with Dirk though, 1.6Gb csv files are
not the best way to work with
2018 Mar 14
2
truncation/rounding bug with write.csv
I don't see the issue here. It would be helpful if people would report
their sessionInfo() when reporting whether or not they see this issue.
Mine is
> sessionInfo()
R version 3.4.3 (2017-11-30)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Arch Linux
Matrix products: default
BLAS/LAPACK: /usr/lib/libopenblas_haswellp-r0.2.20.so
locale:
[1] LC_CTYPE=en_US.UTF-8
2011 Aug 20
2
a Question regarding glm for linear regression
Hello All,
I have a question about glm in R. I would like to fit a model with glm function, I have a vector y (size n) which is my response variable and I have matrix X which is by size (n*f) where f is the number of features or columns. I have about 80 features, and when I fit a model using the following formula,?
glmfit = glm(y ~ x1 + x2 + x3 + x4 + x5 + x6 + x7 + x8 + x9 + x10 + x11 + x12 + x13
2008 Jun 08
0
AUC steady state calculations
Hi,
a collegue has send me an excel sheet with some plasma values, and now he wants to know the AUC steady state.
I took a look at the CRAN taskviews, and came up with PK, PKtools, ...
The AUC calculation, no problem with that, but how do I calculate the steady state?
One way of thinking was with the aid of multiple t-test, to find where we couldn't find difference between the different
2013 Apr 05
1
Accessing examplars in apcluster (apcluster package)
Hi,
I was wondering how it was possible to access the actual cluster exemplars
from the APResult class. Currently it only spits it out onto the terminal
if you type the object but there is no other way to see which one is the
examplar.
Would appreciate any help.
Thanks,
Sachin
[[alternative HTML version deleted]]
2004 Apr 19
1
barplot fill patterns
Dear R-helpers,
I will like to know if there is a way to generate a stacked column
graph using both patterns and colors to fill the bars. I have many
categories for the number of color available in R, so I will like R to
start with solid colors and then use patterns an colors. I have been
using barplot and some code that I found in the archives, but I am
still having bars with the
2018 Mar 14
2
truncation/rounding bug with write.csv
Hello, I have looked on https://www.r-project.org/bugs.html , but it seems
that this is the only way to do it.
The issue is that the precision used by write.csv is on consistant for big
files. See the following code:
First I create a large dataframe filled with random uniform values. Then I
write it to .csv and print out the first and last lines.
df = data.frame(replicate(100, runif(1000000,
2019 Mar 13
0
replication fails
On Wed, 13 Mar 2019 19:30:30 +0100
"Stefan G. Weichinger via samba" <samba at lists.samba.org> wrote:
> Am 13.03.19 um 18:50 schrieb Rowland Penny via samba:
>
> > Try running 'samba-tool ldapcmp ldap://dc1 ldap://dc2'
>
> thanks!
>
> I get differences, too many to post here, but I assume mostly related
> to the drift between the 2 dcs now?
2019 Mar 13
4
replication fails
Am 13.03.19 um 18:50 schrieb Rowland Penny via samba:
> Try running 'samba-tool ldapcmp ldap://dc1 ldap://dc2'
thanks!
I get differences, too many to post here, but I assume mostly related to
the drift between the 2 dcs now?
(lastLogonTimestamp seems obvious to me)
What might solve the initial problem *maybe*
* Comparing [DNSFOREST] context...
* Objects to be compared: 19
2020 Aug 12
0
CVE-2020-12674: Specially crafted RPA authentication message crashes auth
Open-Xchange Security Advisory 2020-08-12
Affected product: Dovecot IMAP server
Internal reference: DOP-1869 (Bug ID)
Vulnerability type: CWE-126 (Buffer over-read)
Vulnerable version: 2.2
Vulnerable component: auth
Fixed version: 2.3.11.3
Report confidence: Confirmed
Solution status: Fix available
Vendor notification: 2020-05-03
Researcher credit: Orange from DEVCORE team
CVE reference:
2020 Aug 12
0
CVE-2020-12674: Specially crafted RPA authentication message crashes auth
Open-Xchange Security Advisory 2020-08-12
Affected product: Dovecot IMAP server
Internal reference: DOP-1869 (Bug ID)
Vulnerability type: CWE-126 (Buffer over-read)
Vulnerable version: 2.2
Vulnerable component: auth
Fixed version: 2.3.11.3
Report confidence: Confirmed
Solution status: Fix available
Vendor notification: 2020-05-03
Researcher credit: Orange from DEVCORE team
CVE reference: