Re: [R] Updata Rdata File

tafile.rdata") Thanks. Jason On Thu, Nov 18, 2010 at 6:56 AM, Duncan Murdoch wrote: > On 18/11/2010 1:49 AM, Jason Kwok wrote: > >> How do I add data to a .rdata file? In my case, I have a time series that >> needs to get updated every day. >> >

[R] Updata Rdata File

How do I add data to a .rdata file? In my case, I have a time series that needs to get updated every day. Thanks, Jason [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLE

Re: [R] Plotting 2 Lines on the Same Chart

:41 PM, Jason Kwok wrote: > > How do I plot two time series plots on the same chart? > > > > Try this: > > example(plot.ts) > example(ts.plot) > > library(zoo) > example(plot.zoo) > library(lattice) > example(xyplot.zoo) > > -- > Statistics &

[R] Plotting 2 Lines on the Same Chart

How do I plot two time series plots on the same chart? Thanks, Jason [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.o

Re: [R] Returning highs and lows in R

I was able to get what I wanted using the lag function to offset an addition period. lag(rollapply(xx,3,max),-2) or lag(rollapply(xx,3,max,align="right"),-1) Thanks. Jason On Thu, Oct 28, 2010 at 1:49 PM, Jason Kwok wrote: > I figured out how to offset my observations by 1 pe

Re: [R] Returning highs and lows in R

I figured out how to offset my observations by 1 period by using the rollapply(xx,3,max,align="right"), which would calculate the mean for (current observation, obs - 1 and obs -2 ). How would I further offset by 1 more period? Thanks, Jason On Thu, Oct 28, 2010 at 1:29 PM, Jason K

Re: [R] Returning highs and lows in R

columns and use pmax rowwise. If you mean the latter and have missing > values, it may be considerably more difficult. > > However, offering anything more seems pointless until you have > adequately specified what you want. Reproducible data and code for a > start. > > Cheers, >

[R] Returning highs and lows in R

I'm having trouble returning a rolling n period highest value for a data set. For each day I want to calculate the highest value over the last 3 days. I am using the following packages: zoo, xts, quantmod and TTR. Thanks, Jason GLD.Close 2010-10-01128.91 2010-10-04128.46 2010

[R] CRAN vs R-Forge

What's the difference between the packages you get from CRAN and R-Forge? Are the packages you get from CRAN fully developed and R-Forge work-in-progress? Regards, Jason [[alternative HTML version deleted]] __ R-help@r-project.org mailing list

Re: [R] Importing CSV File

Thanks for the response Erik. In this case, I would like to keep the row name as the month. How would I do that? Thanks, Jason On Sun, Oct 24, 2010 at 6:20 PM, Erik Iverson wrote: > On 10/24/2010 04:57 PM, Jason Kwok wrote: > >> I'm trying to import a CSV file into R

[R] Importing CSV File

I'm trying to import a CSV file into R and when it gets imported, the entries get numbered down the left side. How do I get rid of that? Thanks, Jason *> read.csv(file="C:\\Program Files\\R\\Test Data\\sales.csv",head=TRUE) Month Sales 1January 422 2 February 151 3 March

Re: [R] If Statement Help

() to do what you want: > > subset(x, Price > 100) > > See ?subset for more information. > > HTH, > Jorge > > > On Sat, Oct 23, 2010 at 9:56 PM, Jason Kwok <> wrote: > >>Price >> 2010-10-11 99 >> 2010-10-12101 &

Re: [R] If Statement Help

Price > 100,, drop = FALSE] > Price > 2010-10-12 101 > 2010-10-13 102 > 2010-10-14 103 > 2010-10-20 101 > 2010-10-21 101 > 2010-10-22 101 > > > > > On Sat, Oct 23, 2010 at 9:56 PM, Jason Kwok wrote: > >Price &g

[R] If Statement Help

Price 2010-10-11 99 2010-10-12101 2010-10-13102 2010-10-14103 2010-10-15 99 2010-10-18 98 2010-10-19 97 2010-10-20101 2010-10-21101 2010-10-22101 I have this dataset and I only want to return instances when the Price is > 100. If I use t