Displaying 20 results from an estimated 300 matches similar to: "Conditional plot length in R"
2010 Jun 19
1
Extracting P-values from the lrm function in the rms library
Hello again R users,
I have a devilishly hard problem, which should be very simple. I hope someone out there will have the answer to this on the tip of their tongue.
Please consider the following toy example:
x <- read.table(textConnection("y x1 x2
indv.1 bagels 4 6
indv.2 donuts 5 1
indv.3 donuts 1 10
indv.4 donuts 10 9
indv.5 bagels 0 2
indv.6 bagels 2 9
indv.7 bagels 8 5
indv.8
2007 Nov 03
1
mantel tests
This is a general statistics question so I'm sorry if its outside the field of r help.
Anyway, I have a suite of female and male traits and I have made a matrix of correlation coefficients using rcorr(). This results in a 6 by 6 matrix like this..
[1] 0.11287990 0.20441361 0.23837442 0.04713234 0.04331637 0.01461611
[7] 0.22627981 0.11720108 0.14252307 0.19531625 0.29989953 0.09989502
2010 Apr 06
1
approx function wierd result
Dear R-list members,
I am calculating the linear extrapolation for a data set, using the function
found in Hmisc.
x=c(0.0265,-0.0003,0.0142,0.0263,0.0634,0.1145,0.2504)
y=c(58,107,152,239,362,512,724)
x1=0.0393216
approxExtrap(x,y,x1, method="linear")
approx(x,y,x1)
#to see what is happening:
plot(x, y, typ="o")
abline(v=x1, col=8)
Which gives x=0.03 and y=163, instead of
2008 Apr 07
2
How to add background color of a 2D chart by quadrant
Hi,
I have a 2D chart that is divided into four quadrants, I, II, III, IV:
plot(1:10,ylim=c(0,10),xlim=c(0,10),type="n")
abline(v=5,h=5)
text(x=c(7.5,7.5,2.5,2.5),y=c(2.5,7.5,7.5,2.5),labels=c("I","II","III","IV"))
I would like to fill each quadrant with a background color unique to the
quadrant. Does anyone know how to do this in R?
Thanks,
--
2011 May 09
2
Create subsets of data
Hello All,
Let's say I have points on a x-y plane. x ranges from 0-2 and y from 0-2.
There are points in quadrants x[0:1]---y[0:1] and in x[1:2]----y[1:2]. I
would like to get the mean and std of the points in the x[0:1]----y[0:1]
quadrant alone. Is there a straight forward way to do it?
I asked a similar question a few days ago regarding plotting a subset of
data using conditions. The
2012 Apr 04
1
[LLVMdev] scalar replacement of aggregates slower?
I just upgraded our optimizer to LLVM 3.0 from 2.8 and noticed that the
scalar replacement of aggregates pass takes a lot longer for some code.
Has there been a performance regression in this pass, or does it do more
work?
LLVM 3.0:
Total Execution Time: 1.0600 seconds (1.0526 wall clock)
---User Time--- --System Time-- --User+System-- ---Wall
Time--- --- Name ---
0.5100
2013 Feb 13
2
Need Help Plotting "Line" for multiple linear regression
Hello,
My name is Craig and I need help plotting a "line" for a multiple linear
regression in R.
Here is my sample data (filename: convis.txt)
Output of convis.txt is (vis and density being predictors of either
avoidance or entrance):
vis den avoid entrance
1 10 1 0.0000 0.0000
2 10 3 0.8750 0.0000
3 8 3 0.8180 0.0300
4 8 3 0.6670 0.0667
5 8 1
2004 Jan 12
1
extract data from a data.frame
Hi,
I'm reading part of a table from postgres, so I'm
getting a data frame.
how can I extract the numerica values so I can
operate on them.
> res <- dbGetResult(mydata)
> str(res)
`data.frame': 5 obs. of 8 variables:
$ cyx.1: num 0.149 -0.278 0.114 0.060 0.109
$ cyx.2: num 0.158 -0.070 0.063 0.149 0.150
$ cyx.3: num 0.052 -0.350 0.114 0.126 0.238
2005 Aug 02
2
Channel Bank Help Please....
Hello -
I have a Premisys Slimline Channel Bank connected to a Digium TE110P. I
am not able to call the FXS extensions or get dialtone on them. The
channel bank is connected via a T1 crossover to the cable and lights
show green. I really need to get this functioning by end of day. If
anyone can help me out I would be greatly appreciative.
Thanks,
Dave
zaptel.conf
loadzone =
2005 Oct 12
1
Problem with PRI and Ericsson AXE 10
Hi everyone,
I have a PRI conection on an * system running Asterisk 1.0.9, libpri 1.0.9 and zaptel 1.0.9.2 connected to an AXE 10 (APZ 21220 System 64) in the network side. I know the system and the wildcard I´m using are ok because I´ve used them before with other PRI connections (to a Siemens EWSD) without any problem.
First the PRI didn´t work (I got the TE110P alarmed with red). After
2007 Jul 27
4
Q: extracting data from lm
Warning: I am a complete newbie to R. I have read ISwR, but I am still
finding myself completely stuck on some simple concepts.
I have tried everything I can think of to solve this one, and finally
decided that enough was enough and I need a pointer to a solution.
I have the following summary from lm():
----
> summary(lm(nu1~nu4))
Call:
lm(formula = nu1 ~ nu4)
Residuals:
Min 1Q
2007 Jan 21
1
Scatterplot help
Hi my friends,
I'm trying to make a scatterplot like this.
1) I have a 3-variable dataset. They are ID, x, and y.
2) "x" is for the X-axis, "y" for the Y-axis, and "ID" is used to label all
the cases in the scatterplot.
3) After creating the scatterplot, I need to add both a X-axis reference
line and a Y-axis reference line. The X-axis reference line is a
2011 Apr 05
1
Grid on Map
I am new to R.I want to draw grid from a csv file which contains latitude
minimum ,latitude maximum ,longitude minimum ,longitude maximum.The grid
should be divided into exactly 4 quadrants. The map is of NY state of USA. I
want to know how can I do it.
Help would be appreciated.
Thanks
Jaimin
[[alternative HTML version deleted]]
2012 Oct 23
1
Olmstead-Tukey Diagram
Hi everyone,
I am Evelina and i have just joined the forum and hope to be able to support
soembody as well as finding some help for my stats problem.
I am trying to plot Frequencies against Densities of an ecological community
using a Olmstead-Tukey diagram (O-T diagram). it is based on the Corner test
for Association.
I seem to undestand that the test can be run in R using the cor.test()
2010 Nov 25
1
Help in improving the style of R plots
Dear all,
I am running a MCMC on my data, and I want to plot the results of the
simulation. I want to dedicate a page in the PS file for each element in
my sample, and in each page I need to plot 8 quadrants.
In attachment you find my first attemp (just the first page). Here are
my troubles (I'm sorry if they are stupid, but I am a newby with R):
-) I need to substitute the greek letters
2011 Feb 02
0
Finding the dominant factor in an unbalanced group
Hi all.
This is perhaps more a statistics question but I'm hoping someone can
help me.
I have a group of patients for whom I'm looking at beat to beat RR
interval changes.
I have plotted the difference between one beat length and the next
against the difference between the previous beat length and the current one.
This gives me a plot with four quadrants: the bottom left corresponding
to
2012 Jun 15
1
How do anova() and Anova(type="III") handle incomplete designs?
Hello all:
I am confused about the output from a lm() model with an incomplete
design/missing level.
I have two categorical predictors and a continuous covariate (day) that
I am using to model larval mass (l.mass):
leaf.species has three levels - map, syc, and oak
cond.time has two levels - 30 and 150.
There are no response values for Map-150, so that entire, two-way, level
is missing.
2007 Nov 26
1
Enable gcc's -fstack-protector-all by default?
Hi all.
For a while, gcc has supported a stack protection mechanism
(-fstack-protector and friends, available in gcc 4.1.2 and up).
Can anyone think of a good reason not to enable it if the compiler
supports it? A quick test here shows minimal difference in runtime over
a full regress pass (~10sec over 8.5 minutes, and since the machine is
not entirely idle that could be experimental error).
2013 Oct 23
1
ProxyCommand brokent in recent snapshots
Hello,
While testing recent snapshots (20131023 and 20131024) I encountered a
problem with ProxyCommand. The regression tests all passed, but the use
of ProxyCommand's in my ~/.ssh/config resulted in name resolution
errors; even if CanonicalizeHostname was explicitly set to "no."
The patch included inline below fixed the issue:
Index: ssh.c
2012 Jun 25
2
Fractional Factorial - Wrong values using lm-function
Hello.
I'm a new user of R, and I have a question regarding the use of aov and
lm-functions. I'm doing a fractional factorial experiment at our production
site, and I need to familiarize myself with the analysis before I conduct
the experiment. I've been working my way through the examples provided at
http://www.itl.nist.gov/div898/handbook/pri/section4/pri472.htm