Hello, Mauricio,
maybe pwr.t2n.test() in package pwr or/and n.ttest() in package
samplesize do what you need/want.
Hth -- Gerrit
-
Dr. Gerrit Eichner Mathematical Institute, Room 212
gerrit.eich...@math.uni
You have read your Date variable in as a character variable, which was
coerced to a factor.
You probably wanted the values to be interpreted as dates. example of
what to do is below.
Note that the date-factor levels are sorted alphabetically, which is
almost certainly not what you want.
In additi
Hello,
I am trying to conduct exploratory factor analysis (EFA) with multiply
imputed data. I used Amelia II to create 40 imputed datasets and have saved
the imputed data in .csv format (I saved the imputations both as a single
file with all imputations and as 40 separate files - each containing o
I have this bit of code:
rates=read.csv("Rates2.csv")
attach(rates)
mysize <- nrow(rates)
count <- 0
for(i in 1:(mysize - 3)) {
#print(i)
thisday <- Date[i]
thisone <- Int[i+1] - Int[i]
nextone <- Int[i+2] - Int[i]
lastone <- thisone + nextone
lastone <- lastone/6.5
lastone <- lastone * 1000
#prin
> On Dec 19, 2016, at 3:31 PM, David Winsemius wrote:
>
>
>> On Dec 19, 2016, at 1:47 PM, Mauricio Cornejo via R-help
>> wrote:
>>
>> Is there a function similar to stats::power.t.test that can handle unequal
>> variances from two samples?
>> I noticed that stats::t.test has an argument for
> On Dec 19, 2016, at 1:47 PM, Mauricio Cornejo via R-help
> wrote:
>
> Is there a function similar to stats::power.t.test that can handle unequal
> variances from two samples?
> I noticed that stats::t.test has an argument for indicating whether or not to
> treat the two sample variances as
Hi David
Thank you for the information
I accidentally deleted my reply coming in from Rhelp and I have not had a
look at at the list to see what happened.
I thought that I had set everything up correctly when I had to switch to my
new ISP and use MS Outlook for my email.
Below is a dput of t
Figured it out...in case it is useful to others:
> library(lint)
> lint.enclos <- parent.env(asNamespace("lint"))
> stopifnot(all(c("perl", "regex") %in% ls(lint.enclos)))
> lint.enclos$perl
function (pattern)
{
message("perl is deprecated. Please use regexp instead")
You don't need a regex.
?strsplit
Something like:
> y <-c("PPA 06 - Promo Vasito", "PPA 05 - Cuentos")
> sapply(strsplit(y, "-"),"[",2)
[1] " Promo Vasito" " Cuentos"
You may have to add spaces around your "-" , as you failed to supply
data so I cannot be sure what you have.
-- Bert
Bert G
Hi,
If your actual data are of the same form as your sample data, why not just:
x <- c("PPA 06 - Promo Vasito", "PPA 05 - Cuentos",
"PPA 04 - Promo vasito", "PPA 03 - Promoción escolar",
"PPA - Saluda a tu pediatra", "PPL - Dia del Pediatra")
sub("^.* - ", "", x)
[1] "Promo Vasito" "Cuent
> On Dec 19, 2016, at 1:25 PM, Omar André Gonzáles Díaz
> wrote:
>
> I have the following strings:
>
> [1] "PPA 06 - Promo Vasito" [2] "PPA 05 - Cuentos"
> [3] "PPA 04 - Promo vasito" [4] "PPA 03 - Promoción escolar"
> [5] "PPA - Saluda a tu pediatra" [6] "PPL - Dia del Pediatra"
>
Is there a function similar to stats::power.t.test that can handle unequal
variances from two samples?
I noticed that stats::t.test has an argument for indicating whether or not to
treat the two sample variances as equal. Wondering why stats::power.t.test
doesn’t have that option.
Thanks,Mauric
I have the following strings:
[1] "PPA 06 - Promo Vasito" [2] "PPA 05 - Cuentos"
[3] "PPA 04 - Promo vasito" [4] "PPA 03 - Promoción escolar"
[5] "PPA - Saluda a tu pediatra" [6] "PPL - Dia del Pediatra"
*Desired result*:
[1] "Promo Vasito" "Cuentos""Pro
> On Dec 19, 2016, at 12:25 AM, Florent Angly wrote:
>
> Hi,
>
> I have identified a couple of bugs that I would like to file on
> https://bugs.r-project.org/ .
>
> Reading the archives, I found that the bugzilla account creation is not
> automated anymore and must be mannually requested on th
Glenn,
R Studio did a webinar on Web Scraping using the rvest package that made it
look really easy. I haven't gotten around to using it yet, but the video
should be on their website somewhere. The link below is the PDF of the slides.
It should be education and will probably give you what yo
All,
I was getting data swap rate data from the St. Louis Fed FRED database via the
FRED API. ICE stopped reporting to FRED and now I must get the data from the
ICE website. I would like to use httr to get the data but I really don't know
much about website design. I think the form redirect
Hi,
I have identified a couple of bugs that I would like to file on
https://bugs.r-project.org/ .
Reading the archives, I found that the bugzilla account creation is not
automated anymore and must be mannually requested on this mailing list.
Can an administrator please create an account for me?
Hi Dagmar,
I hope this code below does what you want.
I use two data.frames. One is for the tiles and one is for the lines to
show changes in state. The 'reduce_entries' function is the heart of things
and can probably be improved.
Ulrik
library(ggplot2)
library(lubridate)
library(dplyr)
librar
Dear all,
Apearantly noone in this great mailing list could help me with my
problem a couple of days ago. As I still struggle with part of the
problem I try to explain my problem differently:
# This is my example data:
exdatframe <- data.frame(Name=c("Ernie","Ernie","Ernie",
"Leon","Leon
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