> On Aug 6, 2017, at 5:10 PM, Sparks, John James wrote:
>
> Hi R Helpers,
>
> I recently tried to take advantage of the ability to download all the
> tickers in the S&P 500 using the functionality of tidyquant, but it threw
> an error.
>
> For summary, the set of commands that I ran was
>
> l
Hi R Helpers,
I recently tried to take advantage of the ability to download all the
tickers in the S&P 500 using the functionality of tidyquant, but it threw
an error.
For summary, the set of commands that I ran was
library(tidyquant)
tq_index_options()
tq_index("SP500")
sessionInfo()
R feedba
Hi Ben,
That's exactly right! Except for each set it's the sample population that
is 400, 800 or 300. I want to take 3 samples, each of 100, where only the
population differs. I can do this separately, but I'm having trouble
putting them all on the same graph.
I'd like to have sample on the x axi
Hi Kirsten,
I can run your example code but I can't quite follow your division of sampling.
Can you restate the the task? Below is what I think you are asking for, but I
have the feeling I may be off the mark.
Set A: 400 samples, draw 100 in range of 5 to 15
Set B: 800 samples, draw 100 in
On 06/08/2017 2:57 PM, Duncan Murdoch wrote:
On 06/08/2017 9:17 AM, Jorge Cimentada wrote:
Hi,
I've been trying to install some very heavy packages from Github (~ 100MB -
300 MB) on my remote server using Rstudio server and I keep getting some
crashes. These packages are pretty much datasets.
On 06/08/2017 9:17 AM, Jorge Cimentada wrote:
Hi,
I've been trying to install some very heavy packages from Github (~ 100MB -
300 MB) on my remote server using Rstudio server and I keep getting some
crashes. These packages are pretty much datasets.
Based on your description, this is RStudio Se
thank you both... assumption is in fact that a and b are always the same
length... these work for me well...
much appreciate it...
Andras
On Sunday, August 6, 2017 12:14 PM, Ulrik Stervbo
wrote:
Hi Andreas,
assuming that the increment is always indicated by the same value (in your
exam
Hi all,
Many thank in advance for helping me. I tried to fit Expectation Maximization
algorithm for mixture data. I must used one of numerical method to maximize my
function.
I built my code but I do not know how to make the optim function run over a
different value of the parameters. That
Hi Andreas,
assuming that the increment is always indicated by the same value (in your
example 0), this could work:
df$a <- cumsum(seq_along(df$b) %in% which(df$b == 0))
df
HTH,
Ulrik
On Sun, 6 Aug 2017 at 18:06 Bert Gunter wrote:
> Your specification is a bit unclear to me, so I'm not sure t
Your specification is a bit unclear to me, so I'm not sure the below
is really what you want. For example, your example seems to imply that
a and b must be of the same length, but I do not see that your
description requires this. So the following may not be what you want
exactly, but one way to do
Hi,
I've been trying to install some very heavy packages from Github (~ 100MB -
300 MB) on my remote server using Rstudio server and I keep getting some
crashes. These packages are pretty much datasets.
I try doing it with this code and get the error below.
> install.packages("devtools")
> devt
Dear All,
wonder if you have thoughts on the following:
let us say we have:
df<-data.frame(a=c(1,2,3,4,5,1,2,3,4,5,6,7,8),b=c(0,1,2,3,4,0,1,2,3,4,5,6,7))
I would like to rewrite values in column name "a" based on values in column
name "b", where based on a certain value of column "b" the ne
Actually there is also a Windows binary:
https://cran.r-project.org/bin/windows/contrib/3.2/polycor_0.7-8.zip
hence installing with install.packages("polycor") should work *if* you
choose a http (not https) mirror. The latter was not possible in R-3.2.0
which probably is what you are taking ab
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