As a newer R practicioner, it seems I stump myself weekly (at least) with
issues that have spinning my wheels. Here is yet another... I'm trying to turn
a list of numeric vectors (of uneual length) inot a dataframe. Each vector
held in the list represents a row, and there are some rows of uneq
I'm trying to understand how to set graphical parameters for trees created with
the party package. For example take the following code:
library(party)
data(airquality)
airq <- subset(airquality, !is.na(Ozone))
airct <- ctree(Ozone ~ ., data = airq,
controls = ctr
I have data in the following format:
person<- c(1,1,1,1,2,2,2,2,2,3,3,3,3,3,3)
v2<- c("2011-01-01", "2011-02-01", "2011-03-01", "2011-04-01", "2011-01-01",
"2011-02-01", "2011-03-01", "2011-04-01", "2011-05-01", "2011-01-01",
"2011-02-01", "2011-03-01", "2011-04-01", "2011-05-01", "2011-06-01")
Dear Help-Rs,
I have data similar to the following:
DF <- structure(list(X = 1:22, RESULT = structure(c(2L, 2L, 2L, 2L,
2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L), .Label = c("NEG", "POS"), class = "factor"), YR_MO = c(201011L,
201012L, 201101L, 201102L, 201103L,
I large datset that includes subjects(ID), Dates and events that need to be
counted. Not every date includes an event, and I need to only count one event
per 30days, per subject. So in essence, I need to create a 30-day "black out"
period during which time an event cannot be "counted" for each
I have been searching the web for an answer on whether there is a package for
group-based trajectory modeling in R. Something along the lines of what PROC
TRAJ (http://www.andrew.cmu.edu/user/bjones/index.htm) accomplishes in SAS.
Does anyone have any experience working with a package that doe
ober 14, 2011 12:39 AM
Subject: Re: [R] is there an option to "turn off" scientific notation in
write.csv
On 10/14/2011 05:25 AM, Chris Conner wrote:
Dear Help-Rs,
I'm working with a file that contains large number
Dear Help-Rs,
I'm working with a file that contains large numbers and I need to export them
"as is". for example take:
x <-
c(27104010002005,27104020001805,27104090001810,90050013000140,90050013000120)
y <- c(1:5)
df <- data.frame(cbind(x,y))
When I then try a simple:
write.csv(df,file="d
Dear Help-Rs,
I've been dealing with this problem for some time, using a work-around to deal
with it. It's time for me to come clean with my ineptitude and seek a what has
got to be a more streamlined solution from the Help-Rverse.
I regularly import delimited text data that contains numerics
Help-Rs,
I've got three vectors representing participants:
vec1 <-
c(4,5,6,7,8,9,10,11,12,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81)
vec2 <- c
(1,2,3,4,5,6,7,8,9,10,11,12,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60
Help-Rs,
I'm doing some string manipulation in a file where I converted a string date in
mm/dd/ format and returned the date .
I've used regexpr (hat tip to Gabor G for a very nice earlier post on this
function) in steps (I've un-nested the code and provided it and an example of
what
Help-Rs
As someone who is newer to R and trying to make the transition from Access into
R, there is a frequetnly used function that I'd like to try and duplicate in
the R world. It involved creating an aggregate table of the top (n) orders
for an item by sum of cost over a select period of t
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