similar to: how to split the string

hello R users, I didn't find a solution for a special problem. I have two dataframes. dataframe1: X value row col ID 1 8.973498062 5512625 3460000 1 2 11.656658570 5501625 3464000 2 3 11.121777570 5495625 3473000 3 4 9.310465964 5508625 3477000 4 5 8.883483845 5515625 3496000 5 dataframe2: X value

dear all, I have two dataframes dataframe1 ID a b c dataframe2 ID value a;W 100 X;c 200 Y;Z 300 I wanted to match the IDs from the two dataframes and record the values into a new column of dataframe1 at the corresponding rows. This is what I expect: dataframe1 ID value a 100 b c 200 I tried doing it like this: for (i in seq(1:nrow(dataframe1))) {

Hi , Dataframe Df contains more than 30 no of records.but I want only first 30 rows of data. How can I retrieve it. Thanks K.Ravichandra [[alternative HTML version deleted]]

Dataframe1 contains a list of specific dates. Dataframe2 contains a large dataset, one element of which is Date. How do I create a subset of Dataframe2 that excludes the dates from Dataframe1? I know how to do it with a left outer join vs null in SQL, but I can't figure out how to do it more directly via the subcripts that already exist? Dateframe1 Date 1/1/2010 1/18/2010 Dataframe2 Date

> On Mar 11, 2018, at 3:32 PM, Neha Aggarwal <aggarwalneha2000 at gmail.com> wrote: > > Hello All, > I am facing a unique problem and am unable to find any help in R help pages > or online. I will appreciate your help for the following problem: > I have 2 data-frames, samples below and there is an expected output > > R Dataframe1: > C1 C2

Hi Lets say, Dir<-"/var/www/html/celnet/users/cxadmin/FlowDuration_DataVolume/fld_01_ 08_18_08" There will be pdf and/or csv files. I want to know how many *.pdf files are there in that directory. How can I get using R commands. Thanks K.Ravichandra [[alternative HTML version deleted]]

Hi Thanks Gabor for your suggestion. I am posting the code that worked for me. dataframe1 = data.frame(cbind(Src = c(1,1,1,2,3), Target1 = c('aaa','bbb','ccc','aaa','ddd'))); #must be data frame dataframe2 = data.frame(cbind(Src = c(2,3,4,4,4), Target2 = c('aaaa','dddd','bbbb','eeee','ffff'))); dataframe3 =

Hi String<-"130.5" Df<-Strsplit(".",":",String) Then Df get "" "" "" "" But I want Df should contains Df "130" "5" If any body knows how to do it.tel me Thanks K.Ravichandra [[alternative HTML version deleted]]

Hi Str1<-"hai " Str2<-"hru" I want to write these 2 strings in a file separated by newline. How can I get this. Thanks K.Ravichandra [[alternative HTML version deleted]]

Hi, Browse[1]> d4 EVDO_Rev Session_Setup FCA bin counts 50 NA 0 5 1 1 51 NA 0 5 2 1 52 NA 0 5 3 1 53 NA 0 5 4 1 54 NA 0 5 5 1 55 NA 0 5 6 1 56 NA 0 5 7 1 57 NA 0 5 8

Hi Can any body explain the meaning of the following R code if(interactive()) stop(msg, call. = FALSE) else quit() Thanks K.Ravichandra [[alternative HTML version deleted]]

Hi All, Let say > df Session_Setup DCT FwdDataVols_bin counts 761 0 1 1 87162 762 0 1 2 11495 763 0 1 3 3986 764 0 1 4 1583 765 0 1 5 920 766 0 1 6 920 767 0 1

HI, I have the array list: X<-vector("list", 2) X[[1]] : data frame 1 X[[2]]: dataframe2 now i want to change index 1 and 2 into: "0-10" , "11-20" ,. finally I want to have X[["0-10"]]:dataframe1 X[["11-20"]]:dataframe2 how do I get them? Thanks a lot. Kind regards, Tammy [[alternative HTML version deleted]]

Hi Dataframe fdf contains bin rate overlay 1 1 90 Assign First/cc _from_SN_53 RNC_20_to_SN_50 RNC_21_Success Rate 2 2 93 Assign First/cc _from_SN_53 RNC_20_to_SN_50 RNC_21_Success Rate 3 1 90 Assign First/cc _from_SN_50 RNC_21_to_SN_53 RNC_20_Success Rate 4 2 94 Assign First/cc _from_SN_50 RNC_21_to_SN_53

On Tuesday, March 07, 2000 5:40 PM, Richard Bilonick wrote: >I need to merge several data.frames into one data.frame. In S-Plus I would >use >"merge" but I don't see a merge command in R. What is the best way to >accomplish >this? The easiest way to to this, I think, is as follows: if you have several data frames, dataframe1, dataframe2, . . . , dataframen, you

Is there a library that is able for example to 1. merge 2 dataframes by row eg.: rbind(dataframe1, dataframe2):data.frame 2. delete a column from a dataframe del(dataframe, colname) or del(dataframe, colindex= 1):data.frame? 3. Select lines from a dataframe by a specific function ? select(dataframe, func=small(x){x<1}, colindex=3): data.frame? 4. converting all double columns of a data.frame

hello, the example below does not work. (i know it's not supposed, but it makes it clear what i'm trying to achieve) par(mfrow=c(2,1)) xyplot(y~x2|x1,data=dataframe1,pch=20) xyplot(y~x2|x1,data=dataframe2,pch=20) i know i could probably merge the two datasets and do something like xyplot(y~x2|x1+dataset,data=merged) any other suggestion? thanks. [[alternative HTML version deleted]]

Hello All, I am facing a unique problem and am unable to find any help in R help pages or online. I will appreciate your help for the following problem: I have 2 data-frames, samples below and there is an expected output R Dataframe1: C1 C2 C3 C4...... CN R1 0 1 0 1 R2 1 0 1 1 R3

If I have a data frame where a species occupies several rows with different phases such as (both col's ar factors): species,phase Populus tremula,1 Populus tremula,2 Populus tremula,3 Calluna vulgaris,1 Calluna vulgaris,2 Betula alba,1 Betula alba,2 Betula alba,3 Primula veris,1 Primula veris,2 and another df where each species only have one row: species,growth_form Populus tremula,tree Acer

Hello All, I am facing a unique problem and am unable to find any help in R help pages or online. I will appreciate your help for the following problem: I have 2 data-frames, samples below and there is an expected output R Dataframe1: C1 C2 C3 C4...... CN R1 0 1 0 1 R2 1 0 1 1 R3