similar to: how to get a date variable from a dataset

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 I have a data like thursday, November 20,2012. I'm not able to convert into data format in R Can anyone please help ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/read-the-date-format-tp4635245.html Sent from the R help mailing list archive at Nabble.com.

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 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'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 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

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 want to generate 4 random number which sum up to 100 always Please help ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/runif-with-condition-tp4278704p4278704.html Sent from the R help mailing list archive at Nabble.com.

hi I have a dataframe and a parameter the parameter can have any one value min max mean sum hist i'm using the function match.fun fun=match.fun(input) fun(dataset) but if input is hist the plot pops up. is there any method to avoid it. else should use only if condition for histogram ----- Thanks in Advance Arun -- View this message in context:

Hi I'm using the dbwrite to insert a large dataset. There are about 10 million rows. But i'm not able to load the records. Please can anyone tell me the way to load or maximum number of records that dbwrite does. so that i can load it in batches ----- Thanks in Advance Arun -- View this message in context:

Hi I have a function y= x^2 min =10 max=20 increment=0.1 I want to find the value of y for the value of x between min and max by step increment. how to get the values using apply function instead of for loop ----- Thanks in Advance Arun -- View this message in context: http://r.789695.n4.nabble.com/Help-required-in-using-apply-instead-of-for-loop-tp4344350p4344350.html Sent from the

Hi My data looks like this data is a vector data= var1 var2 var3 100 120 130 i want to put it in an XML xmlOutput=NULL xmlOutput<- newXMLNode("results") for( i in 1 : length(data)) { newXMLNode("variable",attrs=c(name =names(data)[i] ), value = data[i]), parent = xmlOutput) } is it possible to use apply here If there more variables it

Hi My dataframe looks like this data= id V1 V2 V3 V4 1 5 6 7 8 1 10 20 30 40 2 23 54 54 6 3 43 54 54 33 4 12 34 54 54 4 34 54 23 52 I have to sum by id I used command aggregate(data,by =list(data$id),FUN=sum) Error i face is Error in Summary.factor(c(1L, 1L, 1L, 1L, 1L), na.rm = FALSE) : sum not meaningful for factors Please help me ----- Thanks in Advance Arun --

Hi I have records like like this X1 X2 State 34 72 state1 9 63 state1 49 31 state1 60 34 state1 80 73 state1 60 20 state2 59 87 state2 88 20 state2 71 66 state2 65 56 state2 59 16 state1 60 100 state2 I want to get the summarize value like mean median histogram for X1 and X2 based on state. I'm using FOR loop for this. Is there any method to remove for loop and use apply or any

Hi I've records like this df= x panel 4 1 93 2 21 3 83 4 75 1 87 2 87 3 78 4 50 1 76 2 86 3 65 4 84 1 40 2 39 3 26 4 i want to create histogram out of it . i want all the mid and count values for panel wise my code is histoutput = ddply(df,.(df[2]),hist) i'm not able to get the required result. please help me using for loop takes a lot of time if there are more records ----- Thanks

Hi I've to find the correlation of a variable and lag of other variable. My code currently looks like this y= 32 1 45 26 33 55 15 24 31 78 x=51 69 96 67 71 89 61 42 78 24 lagTimes=2 i want to find the correlation between y and Lag(x,1) and Y &Lag(x,2) i'm using loop to find the lag and then finding correlation If there are more variables and need to find the correlation lag

HI I want to create a dummy variable for a dataset which has various dates Eg I've one year data. The user can choose any date range startdate : 2012-01-01 enddate: 2012-02-01 startdate: 2012-06-01 enddate=2012-07-01 the columns of dataset= X ,Y ,date Thanks and re ----- Thanks in Advance Arun -- View this message in context:

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.