similar to: read the date format

Hi everybody, I am beginer in R and I need your precious help. I want to create a small function in R as in sas to retrieve date. I have a file with data that import in R. DATE PAYS nb_pays.ILI. 1 24/04/2009 usa 0 2 24/04/2009 usa 0 3 24/04/2009 Mexique 0 4 24/04/2009

Hi My data looks like this startDate="2008-06-01" dateRange =c( "2008-10-01","2008-12-01") Is there any method to find the week number from the startDate range ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Week-number-from-a-date-tp4410223p4410223.html Sent from the R help mailing list archive at Nabble.com.

Hi, ?In the example you provided, it looks like the dates in Date2 happens first.? So, I changed it a bit.? DataA<- read.table(text=" ID,Status,Date1,Date2 ??? ??? ?????? 1,A,3-Feb-01,15-May-01 ??? ??? 1,B,15-May-01,16-May-01 ??? ??? 1,A,16-May-01,3-Sep-01 ??? ??? ??? ??? ??? 1,B,3-Sep-01,13-Sep-01 ??? ??? ??? ??? ??? 1,C,13-Sep-01,26-Feb-04 ??? ??? ??? ??? ???

Hi all, I'm having a little bit of trouble with some date conversions and am hoping someone can help me out. Thanks in advance. OK, I have two sources of data that provide date info in a csv file differently. I've attached a small zipped file with two text files that illustrate both. (Is it ok to send attachments to this list? Not sure. It's very small.) I need to be able to

Hello all, Can somebody point me to references or provide some code on dealing with this date issue. Basically, I have two vectors of values that represent dates. I want to convert these values into a date format and subtract the differences to show elapsed time in days. More specifically, here is the example: Date1 Date2 032398 061585 032398 061585 111694 101994 111694

Hi I have set of records seperated by a separator say "$$$" i want to get the values in a dataframe. eq qwer$$12$$qwre ewrtr$7789$ewwe I want the output as\ V1 V2 V3 qwer 12 qwre ewrtr 7789 ewwwe Please help me ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Help-in-splitting-the-records-tp4650827.html Sent from

Hi I have a find the class of each variable of the data set which is given as input. I can able to find the string and the numeric variable. Not able to find if the variable is date or not Can any one help me. ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/how-to-get-a-date-variable-from-a-dataset-tp4639038.html Sent from the R help

I am trying to calculate the median of each row of a data frame where the data frame consist of columns of class Date. Below are my test data and best attempt at using apply. I didn't see a solution via Google or the Baron search site. I'd be grateful for any suggestions or solutions. I'm using R 2.0.0 on Mac OS X. Thank you, Stephen Weigand ### Test data date1 <- c(1000,

Hi I have a data class wise. I want to create a histogram class wise without using for loop as it takes a long time my data looks like this x class 27 1 93 3 65 5 1 2 69 5 2 1 92 4 49 5 55 4 46 1 51 3 100 4 ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Histogram-classwise-tp4528624p4528624.html Sent from the R help mailing list archive

Hi I 've a data a=c(10,20,30) b=c(100,200,300) c=c(50,60,70) I want to compare a[1]<=c[1]<b[1],...... How to compare for all the records ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/comparing-three-vectors-tp4636728.html Sent from the R help mailing list archive at Nabble.com.

Hi, I have a query about sqldf, and dates in general. I couldnt find much on the net or on the forums, hence I am here. Here is the issue: I want to write a function that accepts 3 arguments: date1, date2 and a dataframe, say 'df'. Within the function, I want to populate a temp dataframe which essentially contains the output of the query "select * from df where DATE between date1

i have a data frame with 2 columns of dates. with str(dataframe) i have ensured myself that they were indeed formatted as dates. one column has NA's in it. the aim is now to make a third column that chooses date1 if it is a date, and choose date2 if it is a NA. i am trying df$date3=ifelse(is.na(df$date1), df$date2, df$date1). this leads to unexpected behaviour: the resulting column is

I have a long string. i want to sepearate a 10 digit phone no from it. eg "my no is 9876543210 is personal no and my official no is 123-456-8907. you can use any of these" i want to seperate the 9876543210 and 123-456-8907 from this. therev may be many phone nos in the string. how to do it ----- Thanks in Advance Arun -- View this message in context:

Hi I'm not getting any results in R console when i run commands. I reinstalled R but the results are same ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Results-not-dispalying-in-R-console-tp4647271.html Sent from the R help mailing list archive at Nabble.com.

Hi, I have a dataset X Y A= 10 15 20 30 40 50 B = X Z 10 30 20 50 I have a table containing X Y Z columns How to insert a data frame into the table without using for loop ? now currently i'm using the for loop with using the insert command? ----- Thanks in Advance Arun -- View this message in

Hi list, Could someone explain to me why the following result is not a integer? > difftime(strptime("24NOV2004", format="%d%b%Y"), strptime("13MAY2004", >format="%d%b%Y"), units="days") Time difference of 195.0417 days I'm using R2.12.0 on WinXP. Thanks! ...Tao

Hi All, I have an script in R which accepts user inputs for certain parameters, particularly dates, which the user inputs as character strings. eg: > date1 <- "2009-01-21" The script later parses the input via the as.Date function: > as.Date(date1) However, as.Date encounters an error when the string does not represent an actual date. eg: > date1 <-

Hi I'm storing two functions in a list # creating two function function1 <- function(n) { return(sum(n)) } function2 <- function(n) { return(mean(n)) } #storing the function function3 =c(function1,function2) is it possible to call the stored function and used it ? x=c(10,29) funtion3[1](x) Thanks ----- Thanks in Advance Arun -- View this message in context:

Hi, I wanted to learn how to solve a date and time manipulation where i can do the following two 1. difference of two dates eg (differnce between 5th jan 2013 and 1st jan 2013) 2.Suppose i have week number of the year, i want to know if i can find out the day it refers to eg( say week 2 of 2013 would be 6th jan 2013 and the day is sunday) i need my result to tell me that its

Hi I have a data frame and i need to change the date format in it. my dataframe X Date 1 1/1/2009 2 2/1/2009 3 3/1/2009 I need to change it to 2009-01-01 -- View this message in context: http://r.789695.n4.nabble.com/changing-date-format-in-a-dataframe-tp4076411p4076411.html Sent from the R help mailing list archive at Nabble.com.