similar to: Converting daily data series to monthly series

Dear Users, I have a monthly data for a number of years(1960-2007) for a number of stations and i wish to extract sesonal time-series for the months of March-May and October-November for very station. I have read this data with read.table in R with stations as columns and time (months) as rows. My attempt to aggregate with the zoo package using the function as.yearqtr failed since this sums

Dear users, I have several columns of data (each column containing monthly data for a particular year from january - december) . I would wish to combine the columns to get a Single column of continuous data as shown in (b) below. I have read this data as table in R (a) Data example Year 1903 1904 1905 1906 Jan 125.0 30.0 113.0 5.0 Feb 128.0 100.0 70.0 388.0

Dear users, I have monthly station data (44) stations data for 45 years which I have read in R using read.table. the data is in the format: Year Month Station1 Station2 ...................................... Station 44 (i.e the column names in the 1st row), I also have the latitude and longitude of the stations in a separate file in R (in the format : Station LAT LON). I wish to

Hi R users, What is the command for adding (or how do we add) country boundaries on r-spatial plots. Thanks ZABLONE OWITI GRADUATE STUDENT Nanjing University of Information, Science and Technology College of International Education Add: 219 Ning Liu Rd, Nanjing, Jiangsu, 21004, P.R. China Website: www.nuist.edu.cn ==================================================== [[alternative

Dear all, I am plotting daily data from 1950 to 2000 and I wish to have the time in X-axis to indicate years and NOT days (i.e 1950 1951,......,2000 instead of 1,2, 3, ......). How do I set the x-axis to show years instead of days. ZABLONE OWITI GRADUATE STUDENT Nanjing University of Information, Science and Technology College of International Education Add: 219 Ning Liu Rd, Nanjing,

Dear Users, I wish to know at what confidence level is the confidence interval provided in the Spectrum function (plot.spec) plots. The only information provided in the help regarding this is : a confidence interval will be plotted by plot.spec: this is asymmetric, and the width of the centre mark indicates the equivalent bandwidth. Attached is an example plot with the BLUE confidence

Hi Users, I want to fit the maximums of a data series with a cubic spline. How do I go about this in R. I failed to figure out how I can use the mgcv library to do this. Thanks ---------------------------- ZABLONE

FYI they organize this kind of stuff throughout the years in different cities. Not sure about Nanjing but I did see one in Shanghai Zhang > 在 2018年7月20日，10:40，Shi, Steven via llvm-dev <llvm-dev at lists.llvm.org> 写道： > > Is there similar social party in other Chinese cities? Like Shanghai, Nanjing? > > Thanks > Steven Shi > >> -----Original Message-----

Dear all, I hope to remove a whole column from a data frame or matrix (> 2000 columns). All value in the column are same. The first thing is to select those columns. For instance, I hope to remove the V3~6 column, for all the value in those colume is zero. V3 V4 V5 V6 V7 V8 V9 V10 1 0 0 0 0 0.000 0.000 0.000 0.000 2 0 0 0 0 0.000 0.000 0.000 0.000 3 0 0 0

Hi all, The 3rd HelloLLVM social in China will happen on July 28, 2018. The location is at Hangzhou, Zhejiang. Everyone interested in LLVM related projects is invited to join. Event details is at https://mp.weixin.qq.com/s/Ruf3Dx3GBW37LnUzbfKfNA BoF style. Presentations are welcome too :-) Looking forward to meet you ! -- Best wishes, Wei Wu (吴伟)

Dear all, In one S+ program, I found the following code. if (impres) cat("blah blah blah \n") Would someone here like to tell me what's the counterpart in R to impres in S+? Thanks in advance! Best wishes, Jinsong ===== (Mr.) Jinsong Zhao Ph.D. Candidate School of the Environment Nanjing University 22 Hankou Road, Nanjing 210093 P.R. China E-mail: jinsong_zh at yahoo.com

Dear Manager: Thanks in advance for your interest, We mainly produces are Indole series (indole, 3,3'-Methylenebisindole , 5-methoxy indole) Indole >99% POWDER loss on drying: 1% white slight yellow crystalline powder CRYSTAL melting point: 51-53 loss on drying: 0.5% white sheetform crystal

When using "-U" option with btrfs-corrupt-block, it will cause a segfault due to a missing break in getopt switch. Reported-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> --- btrfs-corrupt-block.c | 1 + 1 file changed, 1 insertion(+) diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c index f0c14a9..a2828d4 100644

I have a vector that contains month and year in the format YYYYMM (e.g.“200701”, “200702”) I wish to do to things: 1. I need to convert to a date that is the last calendar day of each month. 2. I need to convert this to a date that is the last U.S. stock-exchange trading day of each month. Any advice is appreciated, mymonths <- c(200701, 200702)

I have time series observation on daily frequencies : library(zoo) SD=1 date1 = seq(as.Date("01/01/01", format = "%m/%d/%y"), as.Date("12/31/02", format = "%m/%d/%y"), by = 1) len1 = length(date1); data1 = zoo(matrix(rnorm(len1, mean=0, sd=SD*0.5), nrow = len1),  date1) plot(data1) Now I want to calculate 1. Quarterly statistics like mean, variance etc

Dear list members I have a rather large vector (part of a data frame) giving the time (date + time, POSIXct) of observations. The times are irregular (with both small and large jumps) but increasing, and there are several millions of them. I now wish to reduce my data set, so that I only have observations which are at least (for example) 60 seconds apart. Basically, I need (all) the indices

Hello all, What Ruby reference is everybodies favorite? When I''ve been looking around for documentation I haven''t found any that quite compares to php.net''s and cppreference.com''s function references. I''ve been using the one found on rubycentral, but I think that it is missing quite a bit and doesn''t have very good examples. ri is fine, but

Dear all, I am a newcomer to R. I intend to using R to do stepwise regression and PLS with a data set (a 55x20 matrix, with one dependent and 19 independent variable). Based on the same data set, I have done the same work using SPSS and SAS. However, there is much difference between the results obtained by R and SPSS or SAS. In the case of stepwise, SPSS gave out a model with 4 independent

1.download ruby-one click for windows from www.ruby-lang.org? set up. 2.run command: gem install rails --include-dependencies (success) 3.set up mongrel: gem install win32-service(pick the most recent one) gem install mongrel (pick the win32 pre-built) gem install mongrel_service all of the above were successful. then i creat an empty folder "d:\myapp",run the command:

Dear R users, I have a question about R installation under Cygwin. Which versionof R should I download ,linux or windows? If linux ,which release should I download? Thanks a lot! Jiansheng Wu PhD Candidate of State Key Laboratory of Bioelectronics Southeast University, Nanjing, 210096, China Tel 86-25-83790881 Email: js_wu@seu.edu.cn [[alternative HTML version deleted]]