similar to: how to aggregate the dataset

Hi, I''m trying to use number_to_currency in one of my models, but i''m getting the following error: undefined method `number_to_currency'' for #<Product:0x396d680> Obviously, my Product model can''t access number_to_currency -- is there something I need to do to make it available? Thanks so much for your assistance. -- Posted via

Thanks. Yes. Your approach can identify: Glaxy ace S 5830 and S 5830 Glaxy ace But you can not identify using same program: Iphone 4S 16 G Iphone 4S 16G How should I solve both in same time. Kind regards,Tammy [[alternative HTML version deleted]]

HI, I have the following list: crosspries $crosspries[[1]] Product Year_Month prod1 A 201208 1 B 201208 2 C 201208 1 $crosspries[[2]] Product Year_Month prod1 prod2 A 201209 1 1 B 201209 2

Dear R-users, I use "readLines" to read data, but when processing the large data set, there are few files which can not be readed in: 48: In readLines(name_c[i]) ... : incomplete final line found on 'C:/Documents and Settings/lma/My Documents/habitdata/244052900243997/calllog/calllog_log-20050505T121611.txt' ... Whats the problem about this? Regards, Tammy

HI, I have the list: > suu [[1]] NULL [[2]] NULL [[3]] item_id prod 1 2 [[4]] item_id prod 1 2 2 4 how to delete all "NULL" elements from suu to get only >suu [[3]] item_id prod 1 2 [[4]] item_id prod 1 2 2 4 ?? Kind regards, Tammy [[alternative HTML version deleted]]

Hi, I met this problem. Trade_Price_Band x 1 0-30 0.6237240 2 101-150 0.6743857 3 151-200 0.6778513 4 201-300 0.6640293 5 301-400 0.6630991 6 31-50 0.6314547 7 401-500 0.6776249 8 500+ 0.6557705 9 51-75 0.6621073 10 76-100 0.6623469 I want to get the following matrix

Hi, All. I have a data frame with the part as : ..... 142 2006-02-22 16:28:18 useractivity_act 8 0 143 2006-02-22 16:28:26 4 2 0 144 2006-02-22 16:28:28 3 3 0 145 2006-02-22 16:28:31 4 4 1 146 2006-02-22 16:28:35 3 159 0 147

HI, I met this problem: I have the feature data frame: Feature OS 4 2 4 1 4 3 1 2 4 1 what I want to do is to autimatically create one more column called "group": Feature OS Group 4 2 1 4 1 2 4 3

HI, R user, I generate the vectors with the same length. I want to put each vector into each column of data frame. Why it doesnt work`? rm<-data.frame() for(a in 1:6){ rm[,a]<-getmeasure(p1,a,speech) } thanks a lot Tammy _________________________________________________________________ Share your memories online with anyone you want.

HI, I have the following question: Vector a with lenght 150 A B C D......... dataframe b with dim 908X150 1 1 1 1..... 2 2 2 2 3 3 3 3 4 4 4 4 ................ final result I want is the vector with length 908: A*1+B*1+C*1+D*1+..... A*2+B*2+C*2+D*2+..... A*3+B*3+C*3+D*3+..... A*4+B*4+C*4+D*4+..... .... because of too large dimension, how can I achieve this in R?

Hi, I have data frame like this: Product Price Year_Month PE A 100 201012 -2 A 98 201101 -3 A 97 201102 -2.5 B 110 201101 -1 B 100 201102 -2 B 90 201103 -4 How can I achieve the following result

HI, I have large dataset of many countries. I have written the program to run through each country to generate one output for each country. I want to put the output like this: one sheet has output for one country. How do I achieve it by r. I have tried this: library(xlsx) write.xlsx(nnn, "vn.xlsx", sheetName="Sheet1") [1] but when I change sheetName="Sheet2"

Dear R user: I have got the following problem: I have imported two data sets into R: one set includes price information, another one includes volume information. but I noticed the wrong data order problem in the product name, for instance, in one data set, "GALAXY ACE S 5830" in another one, it is "S 5830 GALAXY ACE" both represent same product. how do i map two name

Friends- I wanted to let people know that there is a new experimental release of this plugin. I would love feedback on syntax and features. There is now a full test suite with fixtures that covers all the available syntax. Look at the test suite for more syntax possibilities. There have been many additions since my last release. Fabien Atelier has been working on this with me and has

Hello, How can I check if file is empty in R, if it is, then jump out and read next file; if it isn't, then read through? Thanks a lot for any help. Tammy _________________________________________________________________ More than messages–check out the rest of the Windows Live™. http://www.microsoft.com/windows/windowslive/ [[alternative HTML version deleted]]

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, All I met the following problem. I dont know how to handle it. Country Price 1 CN 44.25 2 CN 21.07 3 CN 92.70 4 CN 47.41 5 CN 111.67 6 CN 50.57 I want to create the 3rd colume with different

Dear R-users, I have a problem: I have many files in the directory:"C:/Documents and Settings/lma/Desktop/FamilyAEntrepreneurs/Entrepreneurs/Juha" I want to copy those files into the new directory: "C:/Documents and Settings/lma/My Documents/Juha/book" (<-use "paste"), I first create the directory using dir.create, but it looks doesnt work. How do I implement

HI, I have the pattern like "`Year_Month)201103`" I want to delete single quotes within double quetes. I want to change it into "Year_Month)201103" , how to do it in r? Thanks a lot. Tammy [[alternative HTML version deleted]]

I have the following dataframe: Product predicted_MarketShare Predicted_MS_Percentage A 2.827450e-02 2.8 B 4.716403e-06 0.0 C 1.741686e-01 17.4 D 1.716303e-04 0.0 ....... Because there are so many products,