Hi varun,
A few suggestions.
Learn to use the built in help system, whichever version (text, HTML,
PDF) you prefer.
Learn to use one of the search programs (see
http://cran.r-project.org/search.html)
Try to do every task that you can in R.
Jim
On Sat, May 23, 2015 at 9:01 AM, varun joshi wrote:
Practice (use the str function frequently, print small pieces of complex
expressions to understand how they are constructed).
Read the Introduction to R document. Especially the part about indexing.
Read Pat Burns' The R Inferno.
Also remember to post in plain text on this list next time
-
Hi Varun,
Courses offered from Coursera & EDX are very informative and carry details
in depth.
However I agree with your point that these courses are very fast paced &
sometimes very technical in nature. (I found the same when I went for Linear
regression course)
I have also recently started lear
I think you are looking for a way to make a vignette. Consider using the Sweave
variant of knitr.
---
Jeff NewmillerThe . . Go Live...
DCN:Basics: ##.#. ##.#. Live Go..
Hi everyone,
I am very new to R and I have a task to do. I appreciate any help. I have 3
data sets. Each data set has 4 columns. For example:
Class Comment Term Text
0 com1aactext1
2 com2aaxtext2
1 com3vvxtext3
Now I need t c
Hello R help,
I am in the process of creating the companion to my book which illustrates how
to call Bond Lab (my R package for MBS and fixed income).
I started with the idea of scripts and then functions calling functions.
Neither seemed very good to me. I checked a couple of packages (Max
Hello there,
I wanted to learn R programming over this summer hence I registered for the
R programming course on Coursera. I understood most part of the lecture but
I'm having a hard time with the assignments.
Till now I can write small functions such as calculating mean of a vector
or an array.
Hi Carlos,
The error from:
readShapePoly("depto.shp")
may well be that the function cannot find the file. Assuming that
there is a file "depto.shp", is it in the working directory of R when
you issue this command? Find out by:
getwd()
I suppose that macintosh computers try to hide the actual lo
Hi Ivone,
This does look a bit like homework as someone else sent a help request
with a strikingly similar problem. However, I would first do something
like this:
is.array(datalist[[1]])
as this is what the error message is saying.
Jim
On Sat, May 23, 2015 at 2:57 AM, Ivone Figueiredo wrote:
On May 22, 2015, at 10:32 AM, Carlos Javier Rincon Rodriguez wrote:
> Hi. Good morning.
>
> I am trying to load a shapefile to do a heatmap of Colombia. I using all
> this package:
>
> library(ctv)
>
> library(spatial)
>
> library(ggplot2)
>
> library(sp)
>
> library(rgdal)
>
> library(rge
For those R packages, as a normal user (rather than sysadmin of a shared
computer) the OP should accept the default R/3.1 subdirectory in their home
directory.
---
Jeff NewmillerThe . ...
Hello,
You should change your function to accept only one argument, the
data.frames, and then use lapply (not sapply).
Something like the following.
calc <- function(dat)
{
bias_dmo_max <- round(mean((dat$dmo_12-dat$Eonestep_12), na.rm=TRUE),
digits=2)
rmse_dmo_max <- round(sqrt(mean((dat$d
Where is your code? I see no invocation of sapply.
-- Bert
Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374
"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
Clifford Stoll
On Fri, May 22, 2015 at 11:02 AM, Stefano Sofia
wrote:
> D
Dear Peter,
> -Original Message-
> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Peter
> van Summeren
> Sent: May-22-15 10:01 AM
> To: .
> Subject: [R] Debian Rcmdr misses sem leaps etc
>
> Hello,when I start up Rcmdr under Jessie Debian I get the message that
> there ar
Dear R-users,
given a list of dataframes (like below reported), for each month I need to
apply a function (called calc).
The result should be written in a new list of data frames, one row for each
month.
I have been trying to use sapply, with no success.
Could somebody help me in this?
$df1
da
Hi Ken,
This is strange but look at the example at ?melt , pick the data.table example
not the reshape2 example.
It looks to me like data.table is using the reshape2 melt()
Perhaps data.table used to load reshape2 but now you need to do it explicitly,
or at least that's my guess.
John Kane
K
Hi. Good morning.
I am trying to load a shapefile to do a heatmap of Colombia. I using all
this package:
library(ctv)
library(spatial)
library(ggplot2)
library(sp)
library(rgdal)
library(rgeos)
library(maptools)
library(ggmap)
and a using this two commands to load the file:
depto<-read
I think we need a couple of things. First we need your post in text not hmtl.
R-help removes the html as a security feature and it turns your post into a
complete mess. See below.
Second we probably need more information and some data. Please read one or
both of these
http://stackoverflow.co
On Ubuntu I just let R install new packages wherever it wants.
Is R on Jesse suggesting a spot? If so, go with it.
John Kane
Kingston ON Canada
> -Original Message-
> From: peter_van_summe...@hotmail.com
> Sent: Fri, 22 May 2015 16:00:41 +0200
> To: r-help@r-project.org
> Subject: [
Hi all, trying to use the melt function in data.table and I'm getting an
error
Anyone seen this before or know how to fix it?
Thanks
str(Distdata)
Classes ‘data.table’ and 'data.frame': 828451 obs. of 3 variables:
$ Poly1 : int 50088 50088 50088 50088 50088 50088 50088 50088 50088
500
Hi
Could you please help me
I am trying to fit a Multilevel Poisson regression with the following code
## BUGS CODE
## Multilevel Poisson regression
model {
for (i in 1:n){
y[i] ~ dpois (lambda[i])
log(lambda[i]) <- mu +
b.species[Species[i]] + b.quarter[Quarter[i]] +
Hi
Can you please help me :(
I am trying to fit a multilevel model but I have received the following
message
skate.3 <- bugs (skate.data, inits=NULL, skate.parameters,
"skates.bug",+ n.chains=2, n.iter=500, +
bugs.directory="c:/ProgramFiles(x86)/OpenBUGS/OpenBUGS323",+
program=
Hello,when I start up Rcmdr under Jessie Debian I get the message that there
are packages missing:sem, markdown, leaps, knitr, aplpackIt then wants to get
these from cran. But first I have to tell where to put them: I HAVE NO IDEA.I
downloaded Rcmdr via a package program.Can anyone help me to ge
Rashmi, I think that this might be beyond the scope of this list as it
is focused on issues with the R language specifically. It does not
look like you have any R errors although we would need to see some
output to be sure.
With respect to the general GA workflow it appears that you are doing
it
Which OS are you using (Windows, Linux (distro), Mac)? When you mention
.so files I tend to assume you are using a Linux system. If you are using
ubuntu, changing the BLAS used by R is relatively trivial by using
'update-alternatives'. More detail is provided at the following link:
http://www.st
Hi, Gabriel,
Do I understand the idea behind 'vincentizing' reaction times?
I don't want to work through the Ratcliff, (1979) paper unless I must.
Let's say we have a subject , s1, with 50 rt scores.
We sort the scores from high to low (or low to high , it makes no difference)
then we split t
On 18.05.2015 09:14, Partha Sinha wrote:
I am using Win 7, 32 bit and R 3.2.0
I want to install few packages via script.
The script should first check if the package is already installed (I
dont want update).
assume the packages are given in a character vector pkg.
pkg <- c("MASS", "A")
Th
I'm actually looking for a way to use a genetic algorithm to optimize
product price's in an e-commerce store. and im doing it in R language.
I'm using GA package in r and below is my data set.
library(GA)
dataset---input1
Production.Cost Product.Price Product.Quality Delivery.Time
After.
28 matches
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