This is off topic. This list is about R programming, not statistics. The OP
should consult statistical resources, such as stats.stackexchange.com .
Bert
On Tue, Jul 2, 2019, 6:22 PM Abby Spurdle wrote:
> > an aggregate analysis (of all aggregated sites) in a way that accounts
> for clustering
> On Jul 2, 2019, at 8:58 AM, Heather H Kettrey wrote:
>
> I need to run some conditional logistic regression models on a multilevel
> matched dataset (propensity score matched data from multiple research sites).
>
>
> I can pretty easily use the clogistic() function in the Epi package to r
> an aggregate analysis (of all aggregated sites) in a way that accounts
for clustering
I'm not familiar with this topic.
For the benefit of those of us (like me), who are not experts on
conditional logistic regression, what does the above statement mean?
Hopefully, someone who is more familiar w
Does this help?
https://www.r-bloggers.com/computing-sample-size-for-variance-estimation/
On Wed, 3 Jul 2019 at 10:23, Thomas Subia via R-help
wrote:
> Colleagues,
> Can anyone suggest a package or code which might help me calculate the
> minimum sample size required to estimate the population v
(1) m[,1] is the first column of matrix (or dataframe) m.
(2) The first row of matrix or dataframe m is m[1,]
(3) To remove the first row of matrix or dataframe m,
do m <- m[-1,]
On Wed, 3 Jul 2019 at 08:59, Nicola Cecchino wrote:
> Hello,
>
> I am simply trying to remove the [,1] row from
Colleagues,
Can anyone suggest a package or code which might help me calculate the minimum
sample size required to estimate the population variance? I can do this in
Minitab but I'd rather do this in R.
Thomas Subia
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give your a matrix an empty column name.
> tmp <- matrix(1:4, 4, 1, dimnames=list(letters[1:4], NULL))
> tmp
[,1]
a1
b2
c3
d4
> dimnames(tmp)[[1]]
[1] "a" "b" "c" "d"
> dimnames(tmp)[[2]]
NULL
> dimnames(tmp)[[2]] <- ""
> tmp
a 1
b 2
c 3
d 4
On Tue, Jul 2, 2019 at 5:09 PM wrot
Hello,
That is not a row, what you seem to have is an object of class
"matrix" and when it's printed it prints the column names or [,1]
[,2] etc if there aren't any colnames. So your matrix has just one
column and 4 rows with rownames 'date', 'Peeps', 'days', 'worn'.
Hope this helps,
R
Hello,
I am simply trying to remove the [,1] row from a matrix. I tried to
search Google to see if I could find how that is removed, but could
not find a way to do it.
So I have the following:
[,1]
date 2019-7-01
Peeps 5
days 7
worn 9
this is wha
Converting a one-row data frame to a list is not difficult, but there
are several ways to represent the data as a list. Here is a
possibility:
> dta <- data.frame(t(LETTERS[1:10]), stringsAsFactors=FALSE)
> dta
X1 X2 X3 X4 X5 X6 X7 X8 X9 X10
1 A B C D E F G H I J
> dta.lst <- as.list(
Try changing encoding="UTF-16" to fileEncoding="UTF-16".
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Mon, Jul 1, 2019 at 9:30 PM javad bayat wrote:
> Dear all;
> I use your suggestion but I gave the same warning messages. I changed the
> file name (Data.csv).
> "
> d4<-read.csv("./Data.csv
On Mon, 01 Jul 2019 20:13:34 -0400
ast...@mathnmaps.com wrote:
> Is there a way to use read.xls to copy a portion of a single row of
> an XLS spreadsheet to a list, without getting assigning row and
> column numbers, and, if the data consists of strings, without
> assigning levels?
If you mean th
No, it isn't correct I'm afraid. From what you describe, Population
isn't nested within Sex or Maturity. Population 1 can contain both
male and female trees, as well as trees of different ages.
A simpler model would be
lm (PAC ~ Season + Population + Sex + Maturity)
So that Sex and Maturity ha
Dear all,
I have a blocking and nested design.
I have Season (3 levels; three different collection periods). That's my
Block.
I have three Populations that I sampled from (Plant material)
>From each population, I sampled 30 trees.
Each Tree is either Female or Male or Unidentified (Sex factor) and
I need to run some conditional logistic regression models on a multilevel
matched dataset (propensity score matched data from multiple research sites).
I can pretty easily use the clogistic() function in the Epi package to run
conditional logistic regression models on each separate/nested subse
Hi Javad,
I could not make sense of the data structure associated with the csv
file as it is copied in your previous message. Would you mind sending a
link so one can download your csv file directly (or at least the
first few lines) so people can check the exact properties of your file?
Yours.
Ol
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