similar to: Computing sd across an array with missing values

Displaying 20 results from an estimated 300 matches similar to: "Computing sd across an array with missing values"

2008 Aug 05
4
LIDAR Problem in R (THANKS for HELP)
Hi All, I am a PhD student in forestry science and I am working with LiDAR data set (huge data set). I am a brand-new in R and geostatistic (SORRY, my background it?s in forestry) but I wish improve my skill for improve myself. I wish to develop a methodology to processing a large data-set of points (typical in LiDAR) but there is a problem with memory. I had created a subsample data-base but
2006 Jul 06
5
Strange RPC error
Hi, I''m tryng to set up Xen, I have errors and google does not help me. The situation is simple: I installed Xen-3.0.2 on gentoo. The Dom0 kernel is up and running, all works perfectly. But when I try to start a DomU, xm raises this error: # xm create -c <conf_file> Using config file <conf_file> Error: <ProtocolError: RPC2/: -1> It''s all. After, `xm list`
2005 Jul 21
3
vectorising ifelse()
Hi All, is there any chance of vectorising the two ifelse() statements in the following code: for(i in gp){ new[i,1] = ifelse(srow[i]>0, new[srow[i],zippo[i]], sample(1:100, 1, prob =Y1, rep = T)) new[i,2] = ifelse(drow[i]>0, new[drow[i]>0,zappo[i]], sample(1:100, 1, prob =Y1, rep = T)) } Where I am forced to check if the value of drow and srow are >0 for each line... in
2000 Nov 08
4
How to plot error bars
I'm a newcomer to R. I can't seem to find any documentation how to add error bars to points in scatter plots. I guess I could plot the points, then compute and plot line segments in the X and/or Y directions to represent the errors? - Mike -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read
2007 Feb 28
4
Ferret 0.11.2-rc3 released
Hey guys, I''ve just removed the -fno-stack-protector flag from the release so those who had trouble because of this should now be able to install 0.11.2-rc3. If you have any problems with this release, please let me ASAP. Cheers, Dave -- Dave Balmain http://www.davebalmain.com/
2008 Oct 15
1
ggplot2: sub/super-script axes labels
How are sub/superscripts designated for text in axis labels? As in this y-axis label: scale_y_continuous("Respiration, pmol O2 h-1") where the "2" needs to be subscripted and the "-1" needs to be superscripted. Thanks. Adam --------------------------------------------------- Adam G. Marsh, Ph.D. Associate Professor Marine Biological Sciences University of
2008 Sep 10
1
ggplot2: edge outlines on points
The graphic design elements in ggplot2 are so well done for color graphics. Thank you! For BW publication graphs, there are a few options I would like to be able to tweak, but can't seem to find the grob handles necessary OR the right plotting strategy. Here's one problem I've been puzzling over: Q> How do you plot points with a grey fill and a black outline around the
2007 Dec 04
1
SD cards
Hi, I am trying to read a 4gb SD HD card class 6 [hispeed], and Centos 5.1 does not recognize it. with dmesg|less I get [1616752.815569] sdf: Mode Sense: 00 00 00 00 [1616752.815571] sdf: assuming drive cache: write through [1616754.813229] sdf : READ CAPACITY failed. [1616754.813231] sdf : status=0, message=00, host=1, driver=00 [1616754.813240] sdf : sense not available. When I connect
2010 Feb 01
2
Weighted SD
Dear all, what function can be used to calculate weighted SD or/and SE? There's no such stuff in 'base' package. Best regards, A.A.Morkovin
2005 Oct 14
0
xen_blk: can''t get major 8 with name sd
This happens randomly, more often than not the next xm create will succeed. Don''t think kernel config is related as I use almost identical setup on my UP machine, but I use the work around for dev designations on all the vm configs. With that setup I get 100% success on creation of domU''s with changeset: 7353:29db5bded574, this changeset would not boot dom0 on the SMP machine.
2007 May 08
0
The match of "ave()" for "FUN=SD"
Hello, I have many subsets of x. I want to get the standard deviation for each subset with the same factor levels. For "FUN=mean" and "FUN=median" I am using "ave()". Can anybody tell me the match of "ave()" for using "FUN=SD"? At the beginning I used aggregate(), also for mean and median. But aggregegate make ""arithmetical
2011 Sep 26
0
Off topic -- A BAD idea. Was: Boxplot BUT with Mean, SD, Max & Min ?
> > > On the original question though, why isn't there something "off the > shelf" > > that will do what I want? Surely, a "boxplot" using mean, SD, max and > min > > would be a common enough need to justify it? > > > > Gabor Grothendieck replied: > tarr is not a list or a data frame. Use.data.frame(tarr) so that it > uses
2001 Jun 04
0
question on bootstrapping mean and sd
Not so much an R question, as a methodology one... Dealing with some reviewers comments, one of the reviewers suggests bootstrapping my group means and standard deviations since 2 of my 3 groups have a small sample size. My data is geochemical data, and a variety of clustering methods finds 3 groups in the data. One group has 50 members, another group has 10 members and another group 12
2008 Feb 28
1
calculate sd for each row on some columns of a dataframe
Hi, I've got a dataframe like this: df = data.frame(a=rnorm(100,1),b=rnorm(100,10),c=rnorm(100,100),d=rnorm(100,-100)) and I want to calculate sd1 for (a,b,c) for each entry, and sd2 for (b,c,d) for each entry. I don't seem to find the answer using aggregate or apply, How can I do this? Thanks in advance, Cheers, Albert.
2018 Mar 29
0
Why do constant SD nodes not set the IROrder?
Specifically I would like to understand why ConstantSDNode and ConstantFPSDNode do not set the IR ordering like most other SDNode-s. These constant SD nodes also previously did not set the debugloc, but that got enabled (here: http://llvm.org/viewvc/llvm-project?view=revision&revision=237237). These constant SD nodes hard-code the order to 0. Is this intentional, or just something that has
2018 Mar 30
0
[debug support] Why do constant SD nodes not set the IROrder?
Updating the subject line. From: llvm-dev <llvm-dev-bounces at lists.llvm.org> On Behalf Of Gautam Chakrabarti via llvm-dev Sent: Wednesday, March 28, 2018 11:58 PM To: LLVM Dev <llvm-dev at lists.llvm.org> Subject: [llvm-dev] Why do constant SD nodes not set the IROrder? Specifically I would like to understand why ConstantSDNode and ConstantFPSDNode do not set the IR ordering like
2014 Nov 26
1
Sysylinux-6.03 freezes at Loading kernel..., works smooth with 4.06 via SD-CARD
Hi, In the Bios folder inside mbr, there are different types of mbr_c.bin mbr_f.bin as well as mbr.bin, is there a description available which tells which mbr is to be used in which case? please point me to the description or kindly explain. while installing syslinux on my device (usb, sd-card) i can use the arguments '-H' and '-S' to specify heads and sectors, these should be the
2013 Sep 25
0
[PATCH 1/1] Track hd->sd block device remaps
--- lib/Sys/VirtConvert/Converter/RedHat.pm | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/lib/Sys/VirtConvert/Converter/RedHat.pm b/lib/Sys/VirtConvert/Converter/RedHat.pm index 36345e7..fc4f5f0 100644 --- a/lib/Sys/VirtConvert/Converter/RedHat.pm +++ b/lib/Sys/VirtConvert/Converter/RedHat.pm @@ -2234,6 +2234,10 @@ sub _remap_block_devices # Fedora
2013 Sep 25
1
[PATCH 0/1] virt-v2v: Track hd->sd block device remaps
During the conversion process, hd* block devices under Xen are mapped to sd* devices for use under guestfs. These sd devices are later remapped to vd* (or sd/hd) devices, for future use under kvm. The current code fails to track the original hd* device names. This causes subsequent remappings of the block devices (in such places as /etc/fstab, and /boot/grub/menu.lst), to skip the hd* devices,
2016 Jun 28
0
SD virt regs question
from the SD / SelectionDAG form of a global-virt-reg, IE a CopyToReg or CopyFromReg where the Reg is a virtual-register (not a physical-register), I need to compute the set of all other global-virt-regs that this one is connected to through PHI nodes as the PHI nodes set up equivalence relations, I should be able to use ADT/EquivalenceClasses.h which seems to implement a generic Union-Find