Displaying 20 results from an estimated 400 matches similar to: "R dataframe and looping help"
2004 Sep 11
3
SAS to R migration questions
Hi,
I'd like to get away from SAS, but I don't really know R well enough at
this point to know if it would be good for this project. I tried to
describe the essence of the project below without getting bogged down in
details.
It starts when I receive a data flat file. There's lots of columns, but
the relevant ones are:
custid (customer ID number)
saledt (date of sale)
2010 Jun 05
1
Problem with GROUP()
Hello list,
using asterisk 1.4.30 and trying GROUP() and GROUP_COUNT() for the first
time... Having some troubles.
This the dialplan (using a sub) :
exten => s,n,Set(_custID=${custID})
exten => s,n,GROUP(${custID})
exten => s,n,NoOp(grouppcount = GROUP_COUNT(${custID}))
exten => s,n,GoToIf($[ ${GROUP_COUNT(${custID})} > 2 ]?maxreached)
The CLI shows :
[Jun 5 16:06:26] --
2018 Feb 25
1
reshaping column items into rows per unique ID
Hi Allaisone,
I took a slightly different approach but you might find this either as or
more useful than your approach, or at least a start on the path to a
solution you need.
df1 <-
data.frame(CustId=c(1,1,1,2,3,3,4,4,4),DietType=c("a","c","b","f","a","j","c","c","f"),
2006 Apr 26
5
accessing created_on causes type error
I assume that this is some newbie stupidity, but I haven''t found my
way around this problem. I have an ActiveRecord object fetched
from the database, and I need to evaluate the contents of the
updated_on field. However, *any* attempt to access that data in the
program results in a TypeError with the message ''no implicit conversion
from nil to integer''.
cust =
2009 Jun 07
2
How do I construct a one matrix from another? (newbie)
Apologies if this is an obvious question but I am teaching myself R and the
occasional push in the right direction is much appreciated?
I have a data.frame containing data that looks like this
CustID itemID
1 a
1 b
2 c
3 a
3 c
I want to assemble the vector of all the items bought by a particular
customer and can't quite see how to do it.
What is the best
2017 Oct 09
1
Help RFM analysis in R (i want a code where i can define my own breaks instead of system defined breaks used in auto_RFM package)
Hi Hemant,
Here is an example that might answer your questions. Please don't run
previous code as it might not work.
I define the break values as arguments to the function
(rbreaks,fbreaks,mbreaks) If you want the breaks to work, make sure that
they cover the range of the input values, otherwise you get NAs.
# expects a three (or more) column data frame where
# column 1 is customer ID,
2017 Oct 09
0
Help RFM analysis in R (i want a code where i can define my own breaks instead of system defined breaks used in auto_RFM package)
I'm getting all the rows as NA in Cscore and almost most of the
observation in R and F and M are also NA.
what can be the reason for this. also suggest me the appropriate solution.
On 9 October 2017 at 15:51, Jim Lemon <drjimlemon at gmail.com> wrote:
> Hi Hemant,
> Here is an example that might answer your questions. Please don't run
> previous code as it might not work.
2017 Oct 09
2
Help RFM analysis in R (i want a code where i can define my own breaks instead of system defined breaks used in auto_RFM package)
I seriously doubt that you are running the code I sent. What you have
probably done is to run your data, which has a different date format,
without changing the breaks or the date format arguments. As you
haven't provided any example that shows what you are doing, I can't
guess what the problem is.
Jim
On Mon, Oct 9, 2017 at 9:40 PM, Hemant Sain <hemantsain55 at gmail.com> wrote:
2017 Oct 10
0
Help RFM analysis in R (i want a code where i can define my own breaks instead of system defined breaks used in auto_RFM package)
Hello Jim,
i have converted all my variable data type according to your attached
example including date, and my dataset looks like this.
ID purchase date
1234 10.2 2017-02-18
3453 18.9 2017-03-22
7689 8 2017-03-24
but when I'm passing the data
2010 Sep 09
1
syntax error, unexpected '<token>'
Hello list,
getting warning : *syntax error, unexpected '<token>'*
dialplan :
exten => pbx,n,Macro(CheckNetworkProblems,${custID})
exten => pbx,n,NoOp(status = ${STATUS})
exten => pbx,n,GoToIf($["${STATUS}"="congestion"]?backup:nocongestion)
CLI :
[Sep 9 12:27:07] -- Executing [pbx at cust:15]
NoOp("SIP/test13-0000002a",
2013 Sep 02
1
Convert chr pieces to numbers that have specific values defined by 2 vectors
Dear all,
I think this is an easy task, but I don't know how to do it. Specifically, I have 69 columns with 300.000 rows. In each cell there is a code like
"2E3", "4RR", etc.
I now have a list that replaces this with values, e.g.,
old new
2E3 5
4RR 3
etc.
The list ist about 1600 rows long, so also to extensive for normal solutions
Do you how to do that? It would
2013 Feb 17
6
histogram
HI Elisa,
You could use ?cut()
vec1<-c(33,18,13,47,30,10,6,21,39,25,40,29,14,16,44,1,41,4,15,20,46,32,38,5,31,12,48,27,36,24,34,2,35,11,42,9,8,7,26,22,43,17,19,28,23,3,49,37,50,45)
label1<-unlist(lapply(mapply(c,lapply(seq(0,45,5),function(x) x),lapply(seq(5,50,5),function(x) x),SIMPLIFY=FALSE),function(i) paste(i[1],"<x<=",i[2],sep="")))
2018 Feb 25
0
reshaping column items into rows per unique ID
I believe you need to spend time with an R tutorial or two: a data frame
(presumably the "table" data structure you describe) can *not* contain
"blanks" -- all columns must be the same length, which means NA's are
filled in as needed.
Also, 8e^5 * 7e^4 = 5.6e^10, which almost certainly will not fit into any
local version of R (maybe it would in some server version --
2006 May 04
0
Eliminating For Loop in Comparison and Replacement
Hi,
I have two dataframes: (Fails, Refurb) each is identical in structure.
The structure has columns consisting of the following: EquipID(Equipment
Identification), CustID(Customer Identification), FailTimes(Time
Equipment Failed). The for loop below is part of a larger Monte Carlo
simulation involving the reliability of equipment and customers.
for (i in 1:length(Fails$CustID)){
j<-1
2004 Apr 04
1
How to improve this code?
Hi all,
I've got some functioning code that I've literally taken hours to
write. My 'R' coding is getting better...it used to take days :)
I know I've done a poor job of optimizing the code. In addition, I'm
missing an important step and don't know where to put it.
So, three questions:
1) I'd like the resulting output to be sorted on distance (ascending)
and
2018 Feb 25
4
reshaping column items into rows per unique ID
Hi All
I have a datafram which looks like this :
CustomerID DietType
1 a
1 c
1 b
2 f
2 a
3 j
4 c
4 c
4 f
And I would like to reshape this so I can
2010 Aug 03
4
why does btrfs pronounce "butter-eff-ess"?
As far as I know, btrfs comes from "btree file system", but why does
btrfs pronounce "butter-eff-ess"?
--
Wang Shaoyan
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2012 Mar 18
2
word frequency count
Hi:
I have a dataframe containing comma seperated group of words such as
milk,bread
bread,butter
beer,diaper
beer,diaper
milk,bread
beer,diaper
I want to output the frequency of occurrence of comma separated words
for each row and collapse duplicate rows, to make the output as shown
in the following dataframe:
milk,bread 2
bread,butter 1
beer,diaper 3
milk,bread 2
Thanks for help!
deb
2006 Feb 15
3
RailsTidy: validates your HTML
Hello everybody,
I needed something to validates my HTML templates so I wrote a plugin
and here is its first version:
RailsTidy is a plugin for Ruby On Rails. It allows you to
* validate your rhtml templates,
* validate the html output of your functional tests,
* clean the html generated by rails.
For doing all this, it uses
* Tidy[1], the popular HTML validator and
2006 Nov 01
4
extract values from a vector
Hello,
I'm looking for a solution for the following problem:
I have two vectors
V1 <- c("apple","honey","milk","bread","butter")
V2 <- c("bread","milk")
now, I would like to know for each element in V1 if it's equal to one of
the elements in V2
I could do:
which(V1 == V2[1] | V1 == V2[2])
but what if I