Displaying 20 results from an estimated 700 matches similar to: "comparing a vactor of values in IF statement."
2005 Mar 15
4
How to extract x rows to get x pvalues using t.test
Hi all,
My data
genes
[,1] [,2] [,3] [,4]
[1,] 25 72 23 55
[2,] 34 53 41 33
[3,] 26 43 26 44
[4,] 36 64 64 22
[5,] 47 72 67 34
stu<-t.test(genes[,1:2],genes[,3:4])
> stu$p.value
[1] 0.4198002
i get 1 pvalue for the entire col1:col2 Vs col3:col4. I am trying to get 5 p values for the 5 rows i have.
I am trying to avoid a for loop coz my
2005 Mar 09
4
How to get standard deviation of rows in a matrix
Hi all,
I am trying to find sd of my rows in a matrix and i get column sd inspite of extracting rows.
I tried to do the sqrt(var(x)) but that did'nt work as well,
Here is my data
genes
15 24 63 40
25 42 46 35
23 53 37 45
30 37 50 55
40 51 30 48
x<-sd(genes[1:5,])
y<-sqrt(var(genes[1:5,]))
I get 4 sds for the 4 columns instead of 5 sds for my 5 rows.
Thanks you in advance.
2005 Jan 14
2
Help in Overlaying of 2 Plots on the same Device.
I'm trying to overlay a density plot on a previously plotted histogram. However, i need to use the same axis as of the 1st(histogram) plot to plot the second. My second plot is creating its own axis and causing my plot to extend the entire histogram instead of getting a subplot on a portion of the histogram. I tried 'fig' and 'new' parameters with no luck.
Thanks in advance.
2005 Jan 08
2
Least square minimization (non-linear)
Hi all,
I think the last time i posted this topic i started on the wrong foot. Thnaks alot to everyone who responded.
i'm coding in R(first time) for a paper my colleague is publishing. i plotted a histogram for 6000 values.
I am told to plot experimental vs theoretical vlaues from the histogram and do a non linear least square curve minimization and compute the mean and sd of the new x
2005 Jan 04
1
Non linear Square fit Function
Hi all,
I'm trying to use the nls function to do a nls curve fit. I have a histogram for my data. I need to get athe best curve fit for this. i am plotting experimental vs the theoretical values. my experimental values are got from my dnorm function, mean=mean of my mid values(hist) and sd=sd of my mid values. For the theoretical i'm using mean and sd of all 20000 raw values as the start
2005 Jan 06
1
Help in Customising NLS function to spit out Mean and SD of the new fit!!!
Hi all,
I'm trying to customize the nls function code to spit out the sd and mean of the new fit. All it gives me are the fitted values. THis function seems to work fine for my project otherwise. All i need is the SD and MEAN. Can someone help me to customise. I frankly did not understand the nls code at all.
I have 10 x and 10 y values from a histogram. I need to use nls to do the best fit
2005 Jan 10
1
How to obtain nls parameter estimates
How can I receive parameter estimates for a given curve that has been fit with the NLS function.
The problem is that I have a "n parameter" curve and I want the optimal fit. The NLS procedure gives me final function values and not the individual parameter estimates that were used to define this "best" fit. What function can I use to get these parameters?
Thanks
2005 Feb 12
1
Trimming Parallel Vectors.
Good Day All !
I have a 2-D vector of mode numeric and a parallel 1-D vector of mode numeric.
Here are my values.
2-D vector 1-D vector
80 75 85 80 80
70 80 90 80 80
60 70 80 70 70
85 75 95 85 85
70 60 90 60 70
My 1-D vector is the average across the rows of my 2-D vector.
I process each column of the 2-D vector in a loop.
When I trim my 2-D vector column
2005 Jun 06
1
Building a R package under Windows XP
Hi all,
I downloaded all the required r-tools from Dr.Brian Ripley's website. RCMD build dAnal
It built the tar file for me.
After which i tried RCMD check dAnal and i get the following error.
Making package dAnal
adding build stamp to DESCRIPTION file
installing R files
installing data files
installing man source files
installing indices
Error in
2005 Jan 07
1
Help in customising the NLS function to spit out mean and SD of new fit!!
i'm coding in R(first time) for a paper my colleague is publishing.
i plotted a histogram for 6000 values. Taking the mean and sd of the midpoints i did a dnorm and got the densities.
pl<-dnorm(trimmedvals,mean=midsmean,sd=midsSD)
(now in a loop of 5 times)
i plotted these experimental values against theoretical values using
the nls function the following way.
2005 Jun 02
1
how to rectify t.test( ) error
Hi All,
I get the following error when i perform a t.test.
studentt<-apply(tlr, 1, function(x) t.test(x[2:6], x[7:11],var.equal=TRUE)$p.value)
# tlr is a table of 11 columns and 22500 rows. I am not able to post tlr due to its size.
Error in if (stderr < 10 * .Machine$double.eps * max(abs(mx), abs(my))) stop("data are essentially constant") :
missing value where
2005 Jun 10
1
RCMD Warnings on src directory.
Hi Group,
I performed the following commands to build my package in R 2.0 under Windows XP
I got all my tools from Dr. Duncan Mudroch's website.
I did a RCMD build dnal and it built a tar file for me.
I did a RCMD INSTALL dnal and it installed well.
When i do RCMD check dnal i get the following 2 WARNINGS with no Errors.
checking package directories..WARNING
Subdirectory 'src'
2005 Jan 07
0
Help in customising the NLS function to spit out mean and SD ofnew fit!!
Doesn't look like nonparametric fit to me, since nls() is used to fit to a
gaussian density, so the result is a gaussian density (with estimated
parameter).
What I do not understand is why people would do this. This is not the first
time I've seen people doing this, on both R-help and S-news (if my memory is
still any good). If the objective is to fit a Gaussian distribution to the
2013 Mar 26
2
Counting various elemnts in a vactor
Dear R forum
I have a vector say as given below
df = c("F", "C", "F", "B", "D", "A", "D", "D", "A", "F", "D", "F", "B", "C")
I need to find
(1) how many times each element occurs? e.g. in above vector F occurs 4 times, C occurs 2 times etc.
(2)
2011 Mar 30
2
mbox sync: Expunged message reappeared in mailbox
Mar 29 10:57:02 k8ux dovecot: POP3(stf): mbox sync: Expunged message
reappeared in mailbox /var/mail/stf (UID 123 < 60016, seq=2, idx_msgs=0)
Mar 29 10:57:02 k8ux dovecot: pop3-login: Login: user=<stf>, method=...
Mar 29 10:57:03 k8ux dovecot: POP3(stf): mbox sync: UID inserted in the
middle of mailbox /var/mail/stf (60016 > 123, seq=2, idx_msgs=1)
Mar 29 10:57:03 k8ux dovecot:
2016 Feb 12
1
random reboots (nvidia G86M Quadro NVS 140M)
Hi
Do you have an idea why am I getting random reboots and (sometimes) this
stacktrace? :
http://people.eisenbits.com/~stf/load/20151222-kernel-stack-trace.png
This should probably go as a bug report, but I have already uninstalled
the driver --- sorry. This is a fresh install of Debian 8.3 (latest
stable) (Jessie). After switching to VESA everything is stable --- the
only problem is that this
2000 Apr 18
1
domain logins for NT Workstation in 2.0.7?
Was having problems getting NT Workstation to see the samba server
as the PDC and do domain logins (Win9x does just fine). Then found
this comment in Sam's Teach Yourself Samba in 24 hours with regard
to configuring a samba PDC:
"You need to configure the server to be in user-level security and you
must enable password encryption. There is no way around either of
these settings."
2001 May 03
2
error when installing win97 word/excell
i installed red hat 7.0, got teh codeweavers version of wine up and
runnin, and i fire up the setup program for ms word 97, and it runs into
this error:
setup is unable to open the data file
X:\~MSSETUP.t\~msstfof.t\Word97.stf';run
setup again from were you ariginally ran it
im stumped, what should i be doing here differently...thanks
...............................
Daniel W. Schar
2024 Sep 12
2
Samba secures funding from Sovereign Tech Fund
Hello Sambaistas!
Some of you have already noticed the exciting news that I'd like to
hereby share with all of you:
The Samba project has secured significant funding [1] from the German
Sovereign Tech Fund (STF) to advance the project. The investment was
successfully applied for by SerNet. Over the next 18 months, Samba
developers from SerNet will tackle 17 key development subprojects
2020 Mar 16
6
[Bug 3137] New: -f keeps stdin and stderr open
https://bugzilla.mindrot.org/show_bug.cgi?id=3137
Bug ID: 3137
Summary: -f keeps stdin and stderr open
Product: Portable OpenSSH
Version: 8.2p1
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P5
Component: ssh
Assignee: unassigned-bugs at mindrot.org