Eva and Professor Peng,
I spent many hours on Programming Assignment 1, however I was unable to get it
right. I found it most useful and think others should work at it too!
Please do send me your work now that the deadline is over. Or you could tell me
your Github account so that I could fork i
Thank you to David and David for their help. The code below generated what
I needed.
library(circular)
mydata <- read.table("http://doylesdartden.com/R/Joints.csv";, header=TRUE,
sep=",",)
x <- circular(mydata$JointsRad)
rose.diag(x,
#Set point character to use
pch = 20,
Dear All,
I want to read the my time series data using XTS package and then to
calculate return using PeformanceAnalytics Package but i am getting the
following error. Please help me to solve the problem. The error follows:
# Required Libraries
> library(xts)
> library(PerformanceAnalytics)
>
>
This is not the help forum for Coursera classes.
--
David.
On Nov 18, 2014, at 1:33 PM, Евгения-Лиза Шелюхина wrote:
> Dear R experts,
>
> I've submited correctly "pollutionmean" and "complete" tasks, but "corr"
> returns error, despite the beginning of the result is the same as example
> ou
Dear R experts,
I've submited correctly "pollutionmean" and "complete" tasks, but "corr"
returns error, despite the beginning of the result is the same as example
output. (screenshot attached)
May be I understood the task wrongly; file of my function is attached, and
it does following:
1) sets d
On Nov 18, 2014, at 1:42 PM, David Doyle wrote:
> Hello everyone,
>
> In geology we often do rose diagrams showing the number of features along a
> certain compass direction within a given range (bin) of angle (0-180
> degrees). I was wondering if anybody has had experience with this in R and
>
Look at circular more carefully. It accepts both degrees and radians, but you
have to create a circular object with circular() to specify what kind of
circular data you have. Then you can plot and get circular statistics on your
data.
-
David L Carlson
Depart
Hello everyone,
In geology we often do rose diagrams showing the number of features along a
certain compass direction within a given range (bin) of angle (0-180
degrees). I was wondering if anybody has had experience with this in R and
if they could recommend a package.
I looked at the circular
> Duncan Murdoch
> on Tue, 18 Nov 2014 10:40:16 -0500 writes:
> On 18/11/2014 10:23 AM, Dennis Fisher wrote:
>> R 3.1.1
>> OS X
>>
>> Colleagues
>>
>> When I use the duplicated function, I often need to find both the
duplicates and the original element t
Dear Sir/Ma,
I am a young forest biometrician that adopted the method that consider how
correlation within plot and between stand can be handled.
Actually i am working on modelling height-diameter relationship under different
canopy layer using mixed model approach.
METHODOLOGY:
> Height and dia
Hello R Experts,
I want to make sure I understand how the strata, sampsize and replace
parameters work so I can confidently perform downsampling on a dataset I'm
working with.
My main question is when the documentation talks about how each of these
parameters (strata, sampsize, replace) works
Hello R Experts,
I want to make sure I understand how the strata, sampsize and replace
parameters work so I can confidently perform downsampling on a dataset I'm
working with.
My main question is when the documentation talks about how each of these
parameters (strata, sampsize, replace) works
On 18/11/2014 11:22 AM, John Laing wrote:
That seems straightforward enough:
> x <- c(7, 7, 7, 2, 3, 2)
> match(x, x)
[1] 1 1 1 4 5 4
> ifelse(duplicated(x), match(x, x), 0)
[1] 0 1 1 0 0 4
Nice solution! Thanks.
Duncan Murdoch
On Tue, Nov 18, 2014 at 10:40 AM, Duncan Murdoch
wrote:
> On 1
That seems straightforward enough:
> x <- c(7, 7, 7, 2, 3, 2)
> match(x, x)
[1] 1 1 1 4 5 4
> ifelse(duplicated(x), match(x, x), 0)
[1] 0 1 1 0 0 4
On Tue, Nov 18, 2014 at 10:40 AM, Duncan Murdoch
wrote:
> On 18/11/2014 10:23 AM, Dennis Fisher wrote:
>>
>> R 3.1.1
>> OS X
>>
>> Colleagues
>>
>> W
Hi,
I am trying to convert lat/lon to UTM but my results are extremely flawed.
Is it because of wrong UTM zone or my lon points are negative?
I read a shapefile from ESRI using:
library(rgdal)
stations <- readOGR(".","stations")
print(proj4string(stations))
## +proj=longlat +ellps=WGS84 +datum=WG
[Picture of a hand slapping forehead]
I suspected it to be something either dumb or obvious, and managed both.
This library plugs into the tail of a long developement project for a web API, which had
prior documentation, which I stuck in "doc". And then added to .Rbuildignore.
Thanks Hadley
On 18/11/2014 10:23 AM, Dennis Fisher wrote:
R 3.1.1
OS X
Colleagues
When I use the duplicated function, I often need to find both the duplicates
and the original element that was duplicated. This can be accomplished with:
duplicated(OBJECT) | duplicated(OBJECT, fromLast=TRUE)
From
Why do you need from xpath 2.0? It will almost certainly be easier to
implement similar functionality using a little R code than adding
xpath 2.0 support.
Hadley
On Mon, Nov 17, 2014 at 6:03 AM, Rees Morrison wrote:
> Many users of R would like the enhanced extraction capabilities of XPath
> 2.
R 3.1.1
OS X
Colleagues
When I use the duplicated function, I often need to find both the duplicates
and the original element that was duplicated. This can be accomplished with:
duplicated(OBJECT) | duplicated(OBJECT, fromLast=TRUE)
>From my perspective, an improvement in the duplicate
Do you have a .Rbuildignore? If so, what's in it?
Hadley
On Tue, Nov 18, 2014 at 7:07 AM, Therneau, Terry M., Ph.D.
wrote:
> I have a new package (local use only). R CMD check fails with a messge I
> haven't seen before, and I haven't been able to guess the cause.
> There are two vignettes, bot
This should get you started:
> aggData <- aggregate(age~smoke+gender, sampleData, mean)
> aggData
smoke gender age
1 0 0 39.47231
2 1 0 40.09020
3 0 1 39.59814
4 1 1 42.04092
> plotInfo <- barplot(aggData$age)
> axis(1, c(0, plotInfo), c("Gender", "-", "-
Try these:
aggData <- aggregate(age~smoke+gender, sampleData, function(x) c(mean=mean(x),
stderr=sd(x)/sqrt(length(x
aggData
plotInfo <- barplot(aggData$age[,1], ylim=c(0, max(rowSums(aggData$age
axis(1, c(0, plotInfo), c("Gender", "-", "-", "+", "+"), line=.75,
lwd=0, ce
Zilefac Elvis yahoo.com> writes:
>
> Hello,
>
> I have two spatial map objects (reproducible example further down)
> which I would like to overlay in R. The
> ESRI shapefiles were read using:
>
The reproduction of the data didn't work with dput().
> library(rgdal)
> Prairie.Boundaries <- r
I have a new package (local use only). R CMD check fails with a messge I
haven't seen before, and I haven't been able to guess the cause.
There are two vignettes, both of which have %\VignetteIndexEntry lines.
Same failure both under R-3.1.1 and R-devel, so it's me and not R. Linux OS.
Hints a
I have the book by W. Venables and B. Ripley, but I didn't find the answer.
Here is an explicit example :
library(nnet)
data(fgl)
ir.glm <- multinom(type ~., data=fgl)
# weights: 66 (50 variable)
initial value 383.436526
iter 10 value 259.867465
iter 20 value 184.185706
iter 30 value 146.
On 18/11/2014 11:35, Franck Vermet wrote:
Hello,
In the function multinom (package nnet), I get the following message after
training for a model with 9 inputs and 6 classes (output) :
# weights: 66 (50 variable)
I understand that there are 50 variables in the model,
but I don't understand th
Hello,
In the function multinom (package nnet), I get the following message after
training for a model with 9 inputs and 6 classes (output) :
# weights: 66 (50 variable)
I understand that there are 50 variables in the model,
but I don't understand the number 66.
How can we interpret this numb
Hi Martin
No problem. I hope OP obtained my responses and so I do not see need for
resending them to r-help.
You are doing great job and such minor problems do not change my opinon about
it.
Regards
Petr
> -Original Message-
> From: Martin Maechler [mailto:maech...@stat.math.ethz.ch]
> PIKAL Petr
> on Tue, 18 Nov 2014 10:48:28 + writes:
> Dear maintainers
Hi Petr,
You sent this to the mailing list, not just the maintainers..
> I experienced problems with undeliverable messages to R-help
Yes, and many others probably did too.
> Here is header, w
Dear maintainers
I experienced problems with undeliverable messages to R-help
Here is header, which basically says that mail to r-help@r-project.org was
undelivered and that phil2.ethz.ch refused to accept it.
*
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