similar to: using apply

Hi Neha, Perhaps merge() from base or join from dplyr is what you are looking for. data. table could also be interesting. Hth Ulrik On Wed, 2 May 2018, 21:28 Neha Aggarwal, <aggarwalneha2000 at gmail.com> wrote: > Hi > > I have 3 dataframes, a,b,c with 0/1 values...i have to check a condition > for dataframe a and b and then input the rows ids to datframe c . In the if >

Hello all, I have a set B and a dataframe df. I want to name the columns of the dataframe after the elements of the set B. For example, for set B with elements {{"P1"}, {"P2"}, {"P3", "P4"}} I want to create a new dataframe with 3 columns named {"P1"} and {"P2"} and {"P3","P4"}. I tried colnames(df)<-(B). But it

Hi, I am looking for a way in which I can check if rows in 1 dataframe are present in another data frame in a unique way. A row in dataframe should be super set of any row in another dataframe. I can write a for loop for it, however, that will be inefficient. So, I am looking for an efficient way to do this in R. I have explained it with an example below: I want to check if a row in dataframe

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

Hi, I have implemented an algorithm in R, where i have used while loop and some set operations inside it, for example, while(condition){ union(set A,set B) set C - set D intersection(set D, set E) } I want to calculate the complexity of my algo. Can you tell me the complexity of union, intersection and set minus operations/functions in R? Is it O(n) or O(log n) ? Also can anyone point a good

> 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

This ancient bug was tracked to the acepack library, line 556 in line src/avas.f The troublesome line is: if (x(n).gt.x(1)) go to 30 Since the input arguments are empty, referencing x(1) and x(n) cause a Segmentation fault, and cause R to crash. Acepack author and maintainer Rob Tibshirani <tibs at utstat.toronto.edu> has been contacted with this information. This is not a

Hello All, I am facing a problem and am unable to find much help online as sets package in R is relatively new. My problem is as follows: Set R is made of 2 sets x and y x<-{"P1", "P2", "P3", "P4"} y<-{} R<-set(x,y) #R={{}, {"P1", "P2", "P3", "P4"}} i need to use R in a recursive loop where i need to take

Hello, Problem I am facing is as follows: Set A is made of 2 sets x and y x<-{"P1", "P2", "P3", "P4"} y<-{} A<-set(x,y) #A={{}, {"P1", "P2", "P3", "P4"}} i need to use A in a recursive loop where i need to take set difference of A and it 's elements. Example: for (i in A){ print(i)

Hi all I have a list of multiple datframes with the same column headers. The last column in each datframe contains a vector of "Interval" class after I have produced this column using "lubridate" package. I needed to convert my list of dataframes to be in a single dataframe for further analysis. I did this using the following syntax : SingleDataframe <- ldply

@Scott: Did u use MPD for storing your database?? On Oct 9, 2014 5:12 PM, "Scott Winterstein" <0turn1 at gmail.com> wrote: > I can help and have alot of exp in Icecast, but not sure about your > Android need. If you want to use the phone as the server and streaming I > dont think that would be possible. I have setup many servers tho. > www.dlradio.org is my private

Yeah i meant that only. But MPD is not working well in Windows. Can you elaborate other types for creating database ?? Can we fetch songs from that database on user demand? On Oct 9, 2014 5:27 PM, "Scott Winterstein" <0turn1 at gmail.com> wrote: > I have a database of the music in a autodj type of playlist playing the > music files right from the database... there are many

> On Apr 17, 2018, at 10:10 AM, Allaisone 1 <allaisone1 at hotmail.com> wrote: > > > Hi all > > I have a list of multiple datframes with the same column headers. The last column in each datframe contains a vector of "Interval" class after I have produced this column using "lubridate" package. I needed to convert my list of dataframes to be in a single

I got some other code on stackoverflow and it works. It also uses libshout library. Now my main concern is on that MPD part !! On Thu, Oct 9, 2014 at 4:32 PM, Neha Arora <neha1451 at iiitd.ac.in> wrote: > Actually we people have decided to make a WiFi radio app as our android > project in college. So we are using icecast for that purpose.. we will be > implementing icecast in

Thanx a lot. I ll try now :) On Oct 9, 2014 5:57 PM, "Scott Winterstein" <0turn1 at gmail.com> wrote: > Yes. You need a server and a programming to the list that users might be > able to pick songs. Like this... > > <link rel="stylesheet" type="text/css" href=" > http://server6.reliastream.com/theme/widget_ondemand.css" /> >

Hello, I started using R a month ago - so I am a novice in this area. I am stuck with a problem and need some help urgently. I am using windows version of R 1.9.1. I am trying to compile C code in it. I have my C code - "hello.c" is lying in C:\Program Files\R\rw1091 This code is - #include <R.h> void hello(int *n) { int i; for(i=0;i< *n; i++) {

Hello, On a command: rake db:migrate I get the "rake aborted!" error. The message is: No Rakefile found (looking for: rakefile, Rakefile, rakebile.rb, Rakefile.rb) c:/InstantRails/ruby/lib/ruby/gems/1.8/gems/rake-0.7.1/lib/rake.rb:1822:in ''load_rakefile'' Checking my setup, I see that Rakefile.rb is in the expected path. Why can''t rake see Rakefile.rb,

He most likely refer to libshout... http://droidtools.sourceforge.net/content/libogglibvorbis-and-libshout-libraries-android On Thu, Oct 9, 2014 at 1:13 PM, Scott Winterstein <0turn1 at gmail.com> wrote: > You want to run a server on Android? > > Mit freundlichen Gr??en > Scott Winterstein > > EMAIL: 0turn1 at gmail dot com > > On Thu, Oct 9, 2014 at 11:06 AM, Neha

Hi, I'm writing for a little help. I have a dataframe with same NA value and I'd like to obtain the means of the value of a coloumn grouped by the levels of a factor coloumn of the datframe. I'm using the function "tapply" but I see that if only a NA value is present the result is NA. There is an option to have the correct result or I must use an other function? Thanks of

Hello: Is it possible to use Samba to send documents to a Microsoft Shared Fax Printer? How would I give it the phone number and other recipient details that normally comes in the popup window when I print to a shared fax printer from Windows? Thanks, Neil -- Neil Aggarwal, (214)986-3533, www.JAMMConsulting.com FREE! Eliminate junk email and reclaim your inbox. Visit