Displaying 20 results from an estimated 3000 matches similar to: "S 3 generic method consistency warning please help"
2001 Oct 26
3
question about anova() output
Hello,
I am getting output from anova() and summary(aov()) that depends on the
order of the factors in the fitted model object, and this has me baffled. I
see this dependency with the data.frame below but not with an example (table
6.4) from Montgomery's DOE book. This is with R 1.3.0 on Debian GNU-Linux.
Where have I gone wrong?
> centerpts
    run sample CH50mg
1  day1 dev126   0.56
2 
2009 Jan 21
1
finding row and column indices of date in multiple columns of a data frame
Hi,
I have a data.frame SAMPLES with columns:
Site	  Site#   Season   Day1   Day2   Day3
Day1, Day2, Day3 are class "Date", the other columns are numeric or  
factor.
I have a date "mydate" that may or may not be listed in my data.frame  
and I need to find that out.
If "mydate" is there, I want to get the number of the data.frame row  
where it occurs.
2013 Jan 17
1
plotting from dataframes
thanks to your guys help I am closer to solving my problem but I have some
small problem. So let's say I start with
>data
number day	hour 
1	17	10		
2	17	11
3	17	6
4	18	4
5	18	10
6	19	8
7	19	8
I want to split to odd days, which I am able to do, I call this object
frames, which looks like:
> frames
$`1`
  c1 day1 hour1
1  1   17    10
2  2   17    11
3  3   17     6
$`2`
  c1 day1
2010 Apr 21
2
Table to List Transformation Scenario
I have a series of tables, one for each environment indicating a date (row)
and a sample at each hour of the day (0 to 23)
Test1 Table:
Date,Hour1,Hour2,...Hour23
1/1/10,123,123,...,123
I would like to model this as a time series but how can I translate the
table into a list such that I can get:
1/1/10 00:00, 123
1/1/10 01:00, 123
1/1/10 02:00, 123
...
1/1/10 23:00, 123
Any suggestions on how
2009 Sep 11
1
help with plotting
HI all,
raw_urine =
read.table("Z:\\bruce.9.3.09.sample.stability.analysis\\urine\\mz.spot.sam.dat.new",
header = TRUE )
pvalue =
read.table("Z:\\bruce.9.3.09.sample.stability.analysis\\urine\\all.urine.features.t.test.result",
header = TRUE )
library(compositions)
p = function(a,b){
y = pvalue[,a]
if(y<0.01){
index = which(y, arr.ind=TRUE)
day1 = raw_urine[index,3:7]
day2 =
2010 May 21
4
indexing problem
Dear group,
Here is my environment :
> ls()
 [1] "l"          "PLglobal"   "Pos100415"  "Pos100416"  "Pos100419"
"Pos100420"  "position"   "select"     "Trad100415" "Trad100416"
"Trad100419" "Trad100420" "trade"      "y"  
With objects :
> l
 [1]
2010 May 26
0
substitution in a function
I have the following function defined as below
match.trace <- function(dfobj, distance, day1, day2) {
  day1 <- substitute(dfobj$day1); day1
  day2 <- substitute(dfobj$day2)
  distance <- substitute(dfobj$distance)
  xx <- NULL
  for (i in 0:10) xx[i+1] <- with(dfobj,
    cor(Lag((day1-day1[1]),i), (day2-day2[1]), use='pair'))
  i <- match(max(xx), xx)
with(dfobj, {
2007 Aug 17
1
finding the row(s) for a date in a data frame
Hi,
If I have a data frame A with the following format:
       Day1          Day2           Day3          Day4
1     1979-11-02  1979-11-03  1979-11-04  <NA>
2     1979-12-06  <NA>          <NA>         <NA>
3     1979-12-13  1979-12-14  1979-12-15  1979-12-16
4     1979-12-20  <NA>          <NA>         <NA>
And a date "1979-12-14", for
2012 Nov 01
2
Name assignment in for loop
Dear helpeRs-
I'm using a for loop to create a series of models.  
I'm trying to assign a name to each model created, 
using the loop index.  The loop gets stuck at the name
 of the model, giving the error "target of assignment 
expands to non-language object".  The linear model runs 
without error; only the name is problematic.
Here is the current loop syntax.  The use of dat
2002 Nov 01
1
Reshape function
Can someone help me with the proper usage of the
reshape function?
Let's say I have a dataset with columns like this
(wide format):
Id  Sex  Group   Test   Day1   Day 2  Day 3...
     
And I want to transpose this into something like this
(thin):
Id    Sex   Group    Test   Time
Where the new column labeled time contains all the
time variables (Day 1, Day 2, Day 3...) that were in
the wide
2006 May 07
1
Anyone care for a braindump?
I have this problem with records that have to be alligned on end- and 
startdate. I came up with the following. but am not convinced that this 
is the best way to tackle this problem. Anyone care for a braindump?
def head_to_tail
    # Remove days that have startdate >= self.startdate AND enddate <= 
self.enddate
    #
    #     before          after
    #
    #     |=====|         |=====|
2011 Nov 01
1
Counting entries to create a new table
Hi,
I am an R novice and I am trying to do something that it seems should be fairly simple, but I can't quite figure it out and I must not be using the right words when I search for answers.
I have a dataset with a number of individuals and observations for each day (7 possible codes plus missing data)
So it looks something like this 
Individual A, B, C, D
Day1 1,1,1,1
Day 2 1,3,4,2
Day3
2012 Jan 19
1
converting a for loop into a foreach loop
Dear all,
Just wondering if someone could help me out converting my code from a for()
loop into a foreach() loop or using one of the apply() function. I have a
very large dataset and so I'm hoping to make use of a parallel backend to
speed up the processing time. I'm having trouble getting selecting three
variables in the dataset to use in the foreach() loops. My for() loop code
is:
2008 Jul 22
0
loop for multiple regressions
Dear all,
I have the following data in excel:
    day1   y 1 2 3 2 3 x1 0.2 0.3 0.4 0.3 0.2 x2 7 3.4 2 8 6  day2   y 2 4 3
2 2 x1 0.4 0.5 0.3 0.3 0.2 x2 7 8 9.1 6 5
I have the following problems:
first of all, when I ask R to read the file (with the package xlsReadWrite
and the command read.xls) it has a problem with the fact that the left most
corner is labelled the same way, so in order for it
2019 Jul 27
3
[PATCH libnbd] lib: Use symbol versions.
This patch adds support for symbol versions.  It is based on what
libvirt does.
The generated syms file looks like:
LIBNBD_1.0 {
  global:
    nbd_...;
    nbd_...;
  local: *;
};
In a future stable 1.2 release, new symbols would go into a new
section which would look like this:
LIBNBD_1.2 {
  global:
    nbd_new_symbol;
    nbd_another_new_symbol;
  local: *;
} LIBNBD_1.0;
In my testing the
2008 Aug 21
1
max and min with the indexes in a zoo object (or anything else that could solve the problem)
library(zoo)
library(chron)
t1 <- chron("1/1/2006", "00:00:00")
t2 <- chron("1/31/2006", "23:45:00")
deltat <- times("00:15:00")
tt <- seq(t1, t2, by = times("00:15:00"))
d <- sample(33:700, 2976, replace=TRUE)
sin.zoo <- zoo(d,tt)
#there are ninety six reading in a day
d.max <- rollapply(sin.zoo, width=96, FUN=max)
2007 Apr 19
4
general question about plotting multiple regression results
Hi all,
I have been bumbling around with r for years now and still havent come up
with a solution for plotting reliable graphs of relationships from a
linear regression.
Here is an example illustrating my problem
1.I do a linear regression as follows
summary(lm(n.day13~n.day1+ffemale.yell+fmale.yell+fmale.chroma,data=surv))
which gives some nice sig. results
Coefficients:
            
2008 Sep 22
1
as.day() Function (zoo question)
I am was going to look at the as.yearmon function in the zoo package
and write a as.day function to aggregate a time series of 96
observations per day into the mean for each day, but I don't know how
to look at the code so that I can convert it into something I can use.
 On top of that I believe that it is probably an S3 method and I
haven't quite gotten that far in my programming
2017 Jan 03
2
Vorbis encoding at half speed
I’m using a Windows development component which uses vorbis.dll, ogg.dll, vorbisenc.dll for encoding an Ogg Vorbis file.  It's all working well except for one user occasionally has a 1 hour file appear as 2 hours and it plays at half speed.  It is being converted from stereo to mono before feeding the encoder with a channels=1 configuration.
Here is an example file which will be available for
2009 Jun 01
1
Reshaping Data
Hi,
i did a mistake with my first post.
I have to reshape data from this matrix:
id    x1         x2          x3        x4    day1 day2 day3 day4 day5 day6 day7 day8  day9
1    0.129    0.797    0.231    0.615    4      4     1     1      1      1      3      3      3    
2    0.420    0.376    0.501    0.282    4      4     4     4      5      4      2      5      5    
3    0.377    0.486