similar to: algorithm help

Dear List Members, I need some help about programming in S language. My problem is as follows: I have meteorological data (about rainfall measurement each day from 1989-2002), say like http://www.angelfire.com/ab5/get5/data.rainfall.txt or http://www.angelfire.com/ab5/get5/R.rainfall.txt in a sequence of 0(denoting dry day)'s and 1(denoting wet day)'s. I want to construct a frequency

Hi. The description of na.contiguous says: "Find the longest consecutive stretch of non-missing values in a time series object. (In the event of a tie, the first such stretch.)" But this seems not to be the case if one of the tied longest stretches is at the start of the sequence/series. In the following example, there are three stretches of length 3, so I expect the result

Problem: I have a data frame with 1s and 0s denoting presence/absence of species (columns) for particular plot measurements (rows). What I want to do is make a new column whose entries for each row is a list of the column names in which a species is present (ie. for row one its entry might read: "sp1","sp2", etc.). I've tried various functions etc. but can't seem to

Hi Marna, This is a condition that the function cannot handle. It would be possible to reformat the result based on the time intervals, but the stretch_df function doesn't try to interpret the values, just stretches them out to a wide format. Jim On Wed, May 2, 2018 at 9:16 AM, Marna Wagley <marna.wagley at gmail.com> wrote: > Hi Jim, > The data set is correct. I took two

Dear Helpers:   I spend more than half a day to solve this problem in R:   Let x be a vector of a string of 0s and 1s, such as x<-c(0,0,1,1,0,0,0,0,1,1,0,0,0,0). It can be a very long vector. How to sub vectors of 0s? In the above example, I would like get the vectors (0,0), (0,0,0,0), (0,0,0,0). I can use which(x==0) to get the index of the 0 elements, but I don't know how to get the

I have a data frame that is 122 columns and 70000ish rows it is a zoo object, but could be easily converted or read in as something else. It is multiparameter multistation water quality data - there are a lot of NA s. I would like to find "chuncks" of data that are free of NA s to do some analysis. All of the data is numeric. Is there a way besides graphing to find these NA less

Hi Jim, The data set is correct. I took two readings from the "SITE A" within a short time interval, therefore I want to take the first value if there are repeated within a same group of "timeGroup". Therefore I wanted following FinalData1 B1 B2 id_X "A" "B" id_Y "A" "B" thanks, On Tue, May 1, 2018 at 4:05 PM, Jim

Hi all, I'd like to find how many sets of 1s there are in the following example; x <- rep(c(1,2,1,3,5), each=5) I know that there are two sets of 1s, visually. Any function in R that allows me to automate the process? Thanks. Muhammad

Background: Our research group collected data from students via the web about their drinking habits (alcohol) over the last 90 days. As you might guess, some students seem to have lost interest and completed some information but not all. Unfortunately, the survey was programmed to "pre-populate" the fields with zeroes (to make it easier for students to complete). Obviously, when

I think need to do something like this: dat<-data.frame(state=sample(id=rep(1:5,each=200),1:3, 1000, replace=T,prob=c(0.7,0.05,0.25)),V1=runif(1,10,1000),V2=rnorm(1000)) rle.dat<-rle(dat$state) temp<-1 out<-data.frame(id=1:length(rle.dat$length)) for(i in 1:length(rle.dat$length)){ temp2<-temp+rle.dat$length[[i]] out$V1[i]<-mean(dat$V1[temp:temp2])

Hi, I''ve adopted a project that uses some rails features I''m not quite used to yet. (ie merb, haml) There is a snippet below. I''m not even sure what other part of the code to include to help with this. I''m open to suggestions :) $ merb ... ... ... ~ Compiling routes... app/views/stretches/show.html.haml:87:in `send'': compile error (SyntaxError)

Hello. For various reasons I am writing my own source client. Most things seem to be working well. Connections work. shout_send() and shout_sync() seem to behave as expected. However, I find that if more than about 10-20 seconds passes between shout_send() calls then libshout crashes (takes my client down) during a subsequent shout_send(). Are there any rules about how often shout_send()

Dear R Community - I hope you might be able to provide some guidance regarding the use of the rle function. I have a set of time-series data where a measured value is recorded every 30 seconds after the start of an experiment. Many of the measured values repeat and I am interested only in the values when there is a change. If I turn the measured values into a vector, the rle function works

Hello everybody, I have problem with a lapply command, which rather proves that I don't fully understand it. I want to extract from a list that consists of dataframes, the length of the first sequences from a given variable (its part of a simulation exercises). Below is code which does the job, but I think it should be possible to make it more compact. ### Example Data dat <-list()

I have an irregular time series, which cannot easily be converted to a ts object (long stretches with NA). I have calculated the climatological mean and st.dev, but need help on how to calculate the anomalies from the climatology and my original data set. Below is an example, where I have indicated the basic idea of what I want to do under Question 1 and 2. I assume I will have to create a custom

My Emails a week or so back were about installing Rstudio and the R shiny server on Debian. I was using an old Toshiba laptop as a sandbox for that and it would only install i386 (same for Ubuntu). Using the information at https://cran.r-project.org/bin/linux/debian/ I did get to the point where I had R 3.5.2, Rstudio and the server on there (with some help from Dirk that is in the list archives).

When I follow the directions at http://docs.gluster.org/en/latest/Install-Guide/Install/ to install the latest gluster on a debian 9 docker container, I get the following error: Step 6/15 : RUN echo deb [arch=amd64] https://download.gluster.org/pub/gluster/glusterfs/3.13/9/Debian/stretch/amd64/apt/ stretch main > /etc/apt/sources.list.d/gluster.list ---> Running in 1ef386afb192 Removing

On 03/06/2018 05:50 PM, Paul Anderson wrote: > When I follow the directions at > http://docs.gluster.org/en/latest/Install-Guide/Install/ to install > the latest gluster on a debian 9 docker container, I get the following > error: Files in the .../3.13/3.13.2 directory had the wrong owner/group, (rsync_aide). I'm not sure why, maybe an incomplete rsync? I've fixed the owners

Full_Name: Greg Kochanski Version: 2.2.0 OS: Debian Linux Submission from: (NULL) (212.159.16.190) When you grab the corner of the Tk-R (R's console) window, the window stretches, but the useable area does not. It remains firmly fixed at the (rather small) value of 24 lines. In fact, you end up with a grey border of wasted pixels around the active white area that contains the text. (And,

Hi, I have a small problem with the function split() and would appreciate your help. I have a table called ?XXX? with 2 columns and 49 rows. The 49 rows belong to 8 different levels (electrode1, ...,electrode8). I want to split the table always at the row where ?electrode1? starts again so that I can export 7 individual dataframes (numbered ?dataframe1? to ?dataframe7?) which contain always