Displaying 20 results from an estimated 3000 matches similar to: "Finding functions"
2012 Dec 17
5
save to file
Hi,
What's the equivalent of "Save to File" from the R console File menu on an R routine? Just trying
to capture the whole R console into a text file when my code fails.
Felipe D. Carrillo
Supervisory Fishery Biologist
Department of the Interior
US Fish & Wildlife Service
California, USA
http://www.fws.gov/redbluff/rbdd_jsmp.aspx
[[alternative HTML version deleted]]
2005 Jun 16
1
AIC in glm.fit with intercept
Dear R users,
glm.fit() gave me the same AIC's regardless of TRUE or FALSE intercept option.
> myX <- as.matrix(1:10)
> myY <- 3+5*myX
> foo <- glm.fit(x=myX, y=myY, family = gaussian(link = "identity"), intercept=TRUE)
> foo$aic
[1] 38.94657
> foo <- glm.fit(x=myX, y=myY, family = gaussian(link = "identity"), intercept=FALSE)
> foo$aic
[1]
2011 Apr 03
1
another question on shapefiles and geom_point in ggplot2
Manuel:
I changed your variable names from x to 'long' and y to 'lat' on the
riqueza_out.csv file.
The code below should do what you want. Also, since the legend title is kind of
long, I broke it
down into three lines so you can see more plot area. I am cc'ing the other
groups so more people
use it if needed.
library(rgdal)
library(ggplot2)
library(sp)
library(maptools)
2008 Dec 31
1
finding yap.exe with Sweave
Dear all:
Just to make sure I am on the same page as everyone else.
I just got a new computer and had to reinstall MikTex and of course R and Tinn-R. In order to be able to generate PDF's with Sweave I had to install notepad++ to tell Sweave where Latex.exe and yap.exe where located under MikTex path. So,I have two questions:
1- Do I need to have a Miktex editor in order to use Sweave? I am
2008 Mar 22
2
counting values on one colum only
Hi all:
Can someone help me count the
number of rows with values in
colum "a" only. assume the name
of my dataframe is "weekly"
I was trying
i<- nrows(weekly$a)
i
but returns 7 when it should
be 4. Thanks
a b c d
27.000
27.000
1.569 0.013 160.000 27.000
1.632 0.013 146.000 27.000
1.830 0.015 70.000 27.000
2.475 0.019
2010 Oct 01
3
gridExtra question
?
Hi:
I get?a couple of warnings? when trying to download gridExtra:
install.packages("gridExtra",repos=http://R-Forge.R-project.org)
?Warning: unable to access index for repository
http://R-Forge.R-project.org/bin/windows/contrib/2.10
Warning message:
In getDependencies(pkgs, dependencies, available, lib) :
? package ?gridextra? is not available
I would like to download the binary
2007 Apr 18
5
Problem with ?curve
Dear all R gurus,
I have following syntax:
y = c(1:10)
chippy <- function(x)
{
y[5] = x
sin(cos(t(y)%*%y)*exp(-t(y)%*%y/2))
}
curve(chippy, 1, 20, n=200)
But I am getting error while executing :
Error in xy.coords(x, y, xlabel, ylabel, log) :
'x' and 'y' lengths differ
In addition: Warning message:
number of items to
2017 Mar 28
2
A trap for young players with the lapply() function.
On 28/03/17 15:26, Charles C. Berry wrote:
> On Mon, 27 Mar 2017, Rolf Turner wrote:
>
>>
>> From time to time I get myself into a state of bewilderment when using
>> apply() by calling it with FUN equal to a function which has an
>> "optional" argument named "X".
>>
>> E.g.
>>
>> xxx <-
2004 Dec 23
1
searching Jonathan Baron's R Site
First, my site will be down December 27-28 because of a network
upgrade at Penn. It will also be down at least one day before
that, while I upgrade the operating system. (And another day
some time in January because of a planned power outage.)
Second, I have replaced the search engine in my R site:
http://finzi.psych.upenn.edu/
I am now using Namazu instead of HtDig. The direct link to the
2009 Jan 21
4
seq()
HI:
Could someone help me with the seq function? I have a range of values starting from 1 to 52 but I want seq to start at 27 by=2, but when it reaches 51 start with with number 1 to 25. is this possible. I can do the basics of seq() but I can't figure how to do this one. This is how I want my sequence to look like:
27 29 31 33 35 37 ............51 1 3 5 7 9 11 13 ...........25
Felipe D.
2004 Nov 24
2
an R function to search on Prof. Baron's site
Inspired by the functions that Barry Rawlingson and Dave Forrest posted for
searching Rwiki and R-help archive, I've made up a function that does the
search on Prof. Baron's site (Thanks to Prof. Baron's help on setting up the
query string!):
RSiteSearch <- function(string, restrict="Rhelp", format="long",
sortby="score",
2010 Apr 29
1
Sweave question
Hi:
I am using Sweave and texi2dvi to generate a LaTeX document but
can't find the way to hide the graphics while the R chunks are being
executed. I thought results=hide would do it but that't not the case.
If I do:
\begin{figure}[h]
<<figA=true,echo=F,fig=T,results=hide>>=
a < rnorm(1000)
plot(a)
@
\caption{Weekly estimates.}
\label{figure:ggplot1}
\end{figure}
The
2010 Jul 24
2
How to generate a sequence of dates without hardcoding the year
Hi:
I have a dataframe named 'spring' and I am trying to add a new variable named
'IdDate'
This line of code works fine:
spring$idDate <- seq(as.Date("2008-07-01"),as.Date("2009-06-30"),by="week")
But I don't want to hardcode the year because it will be used again the
following year
Is it possible to just generate dates with the month and
2008 Mar 16
2
How to loop through all the columns in dataframe
Hi:
Can anyone advice me on how to loop and perform a
calculation through all the columns.
here's my data
xd<-
c(2.2024,2.4216,1.4672,1.4817,1.4957,1.4431,1.5676)
pd<-
c(0.017046,0.018504,0.012157,0.012253,0.012348,0.011997,0.012825)
td<- c(160524,163565,143973,111956,89677,95269,81558)
mydf<-data.frame(xd,pd,td)
trans<-t(mydf)
trans
I have these values that I need to
2005 Jan 14
1
how to produce 2-d color plots in R
Hello 'R' Users,
I am very new on 'R', so excuse me if I ask something wrong.
I have ASCII data and the colums of the data are looks like :-
!-------------------------
time,yr,mo,dy,hr,min,sec,lat,lon,ht,co2obs,sigma,co2model
--
-
--
!----------------------------
Each column has data value. Now I want to produce 2-d color maps,
for example the plot should look like :-
on
2009 Mar 30
2
ggplot2-geom_text()
Hi: I need help with geom_text().
I would like to count the number of Locations
and put the sum of it right above each bar.
x <- "Location Lake_dens Fish Pred
Lake1 1.132 1 0.115
Lake1 0.627 1 0.148
Lake1 1.324 1 0.104
Lake1 1.265 1 0.107
Lake2 1.074 0 0.096
Lake2 0.851 0 0.108
Lake2 1.098 0 0.095
Lake2 0.418 0 0.135
Lake2 1.256 1 0.088
Lake2 0.554 1 0.126
Lake2 1.247 1 0.088
2008 Aug 10
2
detect if data is normal or skewed (without a boxplot)
Hello all:
Is there a way to detect in R if a dataset is normally distributed or skewed without graphically seeing it? The reason I want to be able to do this is because I have developed and application with Visual Basic where Word,Access and Excel "talk" to each other and I want to integrate R to this application to estimate confidence intervals on fish sizes (mm). I basically want to
2012 Jul 12
2
nls question
Hi:
Using nls how can I increase the numbers of iterations to go beyond 50.
I just want to be able to predict for the last two weeks of the year.
This is what I have:
weight_random <- runif(50,1,24)
weight <- sort(weight_random);weight
weightData <- data.frame(weight,week=1:50)
weightData
plot(weight ~ week, weightData)
M_model <- nls(weight ~ alpha +
2008 Mar 06
2
How to hold a value(Mean sq) with a string
Hi all:
Can someone advice me on how to hold the residuals
Mean sq value on a string
so it can be used in other calculations.
I was trying something like this:
Msquare<-dfr$Mean sq but fails..Thanks
dfr <- read.table(textConnection("percentQ
Efficiency
1.565 0.0125
1.94 0.0213
0.876 0.003736
1.027 0.006
1.536 0.0148
1.536 0.0162
2.607 0.02
1.456 0.0157
2.16 0.0103
2007 Aug 16
2
R graphics display window
Hi all:
How can the R graphics window be customized
programmatically? Either minimized,maximized or change
the size of the default that ships with R.
Thanks
Felipe D. Carrillo
Fishery Biologist
US Fish & Wildlife Service
Red Bluff, California 96080