Displaying 20 results from an estimated 110 matches similar to: "Random resampling of columns in species association matrices"
2011 Jul 20
2
bar chart issue
Hi everyone,
I determined the presence of three types parasites in a passerine bird
over two years. I would like to create a bar chart that shows the
proportion infected on the y and year/parasite on the x such that each
type of parasite is grouped together (single label) and a bar for each
year . This would show if there have been changes in the prevalence of
a the parasite over two years.
2010 Aug 20
3
if-else function
Hi R people!
I am looking for some suggestions writing an if-else function.
The idea is to characterize different plots containing counts of
variables (here parasites). If a plot has a count equal or higher than
4 for any parasite the function should return a 1 else a 0. Later I
can loop the function over all plots.
Here I have a little subset of my data:
VariablePAR Plot1
2013 Feb 17
2
nested random factor using lme produces errors
Hi,
I am running a mixed-effect model with a nested-random effect. I am
interested in gut parasites in moose. I has three different type of
treatment that I applied to moose which are from different "families". My
response variable is gut parasites and the factors are moose families which
is nested within treatment. My data is balanced.
To answer this question, I used the lme function
2008 Apr 09
2
GLM fitting in R and Statistica
Hi,
I have a problem concerning discrepances between R (which I use) and
Statistica (which uses my supervisor). I can't say what is the origin
of these differences but unfortunately my supervisor doesn't know that
either.
Our response variable is number (or presence/absence) of parasites in
rodents and explanatory variables are presence/absence of several
alleles. The rodents were
2008 Jun 29
2
Survival Analysis with two different events
Hello all,
I am hoping to use survival analysis to examine whether parasite attack
increases nest death in a species of social wasp. I therefore have data for
1. Whether the nest "died" in the 6 week census period ("Status", where
1=died, 0=survived)
2. The day number of death/last recorded day it was observed alive.
3. Whether the nest was attacked by the parasite (0/1 as
2011 Dec 01
1
Hlink node data for 570645 already has path ...
When syncing one backup system (running dirvish, but that's not really
relevant) to a second long-term backup system which uses btrfs
snapshots, I get the following output:
rsync: link "/parasite.oob.telegraaf.net/vservers-var-www/tree/elo/var/www/lokaalx/openx-htdocs/etc/xmlcache/.svn/prop-base/cache_etc-changes_schema-tables-core-12934.bin.svn-base" (in backup-aquagirl) =>
2005 Aug 18
1
GLMM - Am I trying the impossible?
Dear all,
I have tried to calculate a GLMM fit with lmer (lme4) and glmmPQL
(MASS), I also used glm for comparison.
I am getting very different results from different functions, and I
suspect that the problem is with our dataset rather than the functions,
but I would appreciate help in deciding whether my suspicions are right.
If indeed we are attempting the wrong type of analysis, some
2008 Dec 12
1
Support vector model?
Dear All,
Apologies for sending this email to both list, but at this point I'm not
sure which one could help me the most.
I have 4 sets of data, 1 test and 3 different sets of controls.
The measurements are binary, with a matrix of 0 and 1
I'm measuring across time (rows, ~815) the behaviour of organelles in
the cell by microscopy in response to different stimuli (several
measurements
2007 Mar 12
2
Parasite and camping_generator 0.2.0
Announcing the the 0.2.0 release of parasite and the camping_generator.
Parasite (from the project page -- http://parasite.rubyforge.org/):
Camping app developers no longer have any reason to envy their Ruby on
Rails friends: Parasite brings generators, environments, and other
Rails-y goodness to the world of Camping app development.
Parasite is currently at version 0.2. The Parasite package is
2005 Nov 02
1
nlminb failed to converge with lmer
Dear all,
I'm building binomial mixed-model using lme4 package.
I'm able to obtain outputs properly except when I include two particular
variables: date (from 23 to 34; 1 being to first sampling day) and Latitude
(UTM/100 000, from 55.42 to 56.53). No "NA" is any of those variables.
In those cases, I get the warning message: "nlminb failed to converge"
I tried to
2016 May 10
3
[llvm dev] do we have allocator hook to use maximum different registers?
Hi,
Default register allocator tries to reuse the same registers over and
over again even if register file have a plenty of registers to use.
This creates parasite false dependencies and makes scheduling less
effective.
How to instruct allocator (may be override some virtual function in
mine backend?) that it is profitable to use maximum number of
available registers with minimal dependencies?
2007 Jan 17
2
Effect size in GLIM models
Dear All,
I wonder if anyone can advise me as to whether there is a consensus as
to how the effect size should be calculated from GLIM models in R for
any specified significant main effect or interaction.
In investigating the causes of variation in infection in wild animals,
we have fitted 4-way GLIM models in R with negative binomial errors.
These are then simplified using the STEP procedure,
2004 Oct 04
2
fxsmod cable length limit
Is there a cable length limit to use with a fxsmod (TDM400B) ?
I noticed that if I use a very long cable 148 feet, I can hear some
parasite : I hear the radio ! If I use a short cable, there is no
problem...
Thanks for help,
St?phane HENRY
2007 Jan 12
5
Rails session parasite...
All,
I see this item on the merb-0.0.8 release notes
Added rails session parasite mode.
I am assuming merbs can piggy back off the rails current session.
How does one achieve that ?
Thanks
Fernand
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2009 Dec 13
1
Non-linear Weibull model for aggregated parasite data
Hi,
I am trying to fit a non-linear model for a parasite dataset. Initially, I
tried log-transforming the data and conducting a 2-way ANCOVA, and found
that the equal variance of populations and normality assumptions were
violated. Gaba et al. (2005) suggests that the Weibull Distribution is best
for highly aggregated parasite distributions, and performs better (lower
type 1 and 2 error rates)
2020 May 12
3
Monitoring network traffic to a host
Background - I am having an issue with occassional pauses when streaming
high-bitrate media across my home network to my smart TV. I *suspect*
that the root cause is the (incredibly lame) 100 Mbps Ethernet interface
in the TV.
In order to confirm that the peak bitrate really does max out the 100
Mbps connection, I'd like to monitor the communication between my NAS
and the TV. The two
2009 Aug 31
1
GLM contrasting question
I have run a glm with a final formula of : (dependent variable = parasite
load, main effects are sex, month, length and weight, with sex:month and
length:weight first order interactions).
I am using the summary(mod) command to give me the contrasts, which I
believe use the contr.treatment command. I do not have a treatment group as
such as I am comparing data from a wild system so I use the
2008 Sep 24
1
t tests/ANOVA
I have a set of data that comprises genome numbers in single eggs from three different parasite clones - 3D7, HB3, and MIX. I can draw a boxplot of the genome numbers for each clonefed but how do I carry out a t test or ANOVA to compare if the means are signifcantly different? (Data is listed below)
Many thanks,
Georgina Humphreys
clonefed genomes
HB3 21.3
HB3 23.5
HB3 25.9
3D7 27.2
HB3 28.1
2013 Aug 15
23
Red Hat CEO: Go Ahead, Copy Our Software
http://www.businessinsider.com/red-hat-ceo-go-ahead-copy-our-software-2013-8
Title says is all. Nice to know RH understands and accepts the
relationship between CentOS and RHEL.
Although it is complex. After all, if too many choose CentOS, there
may no longer be a CentOS. However, I don't think I would refer to
CentOS as a "parasite" as the author Matt Asay does. More appropriate
2010 Sep 03
2
Interactions in GAM
Hello R users,
I am working with the GAM to inspect the effect of some factors (year, area) and continuous variables (length, depth, latitude and longitude) on the intensity and prevalence of the common parasite Anisakis. I would like introduce interaction in my models, both "continuous variables-continuous variables" and "continuous variables-factor". I have read some