similar to: About Matrix

Displaying 20 results from an estimated 10000 matches similar to: "About Matrix"

2009 Oct 01
2
The problem of readLines
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
2009 Sep 01
3
data frame
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.
2009 Mar 05
2
File checking
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]]
2009 Sep 22
2
Manipulate directory-help
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
2009 Aug 24
2
Generate random sample interval
Hi, R users, I have a problem about how to generate random sample interval from a duration. For example, during a time duration 0-70s, I want to generate a sample which last 10s. the sample could be 0-10 or 30-40s or 25-35s etc How could I do it in R`?? Thanks a lot. Tammy _________________________________________________________________ Share your memories online with anyone you want.
2009 Mar 11
1
Date frame
Hi, All, How to make a data frame, each row of data frame store the different length of vector? Thanks. Tammy _________________________________________________________________ Show them the way! Add maps and directions to your party invites. http://www.microsoft.com/windows/windowslive/products/events.aspx [[alternative HTML version deleted]]
2009 Mar 17
4
Merging
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
2009 Sep 29
1
How to parsing data like this in R
Hi, R-users, I met a problem: Items:[Anna 'moi =) akku loppu joskus 4ltä. Kestää kauan nää..'\tAmer, Tuusula (0:20)\t20\t12\t16\t00\t00\t11]/Anne 'Ei jakoa,uus päivä muistio et 4n niin peruin. Hups'\t (0:16)\t0\t12\t18\t00\t00\t11/Elina 'Konsertissa. En tod. vastaa teille'\tEtu-Töölö, Helsinki (2:40)\t24\t12\t18\t00\t00\t11 I want to parsing the above data into the
2009 Sep 21
3
Create directory and copy files in R
HI, All R users, My problem is: > fn [1] "C:/Documents and Settings/lma/Desktop/FamilyAEntrepreneurs/Entrepreneurs/Juha/book_log-20041210T095019.txt" > dpath [1] "C:/Documents and Settings/lma/My Documents/Juha/book" I want to make a function "cyfun" to copy all files in "dir" to "deskdir" but I always got the following problem: Error
2009 Oct 02
1
Please Help me!
Hi, R-users, I have a problem: Because there are few files which can't be readed into R completely, so on the following subsequence programme, I use write.table, which creates the "NA" files for those incomplete files autimatically. I don't want those NA files. My programes formats looks like: name_c<-Sys.glob("C:/Documents and Settings/lma/My
2009 Mar 12
4
who can give me some hint?
Hi All, > act_2 Date Dtime Hour Min Second Rep 51 2006-02-22 14:52:18 14 52 18 useractivity_act 52 2006-02-22 14:52:18 14 52 18 4 55 2006-02-22 14:52:49 14 52 49 4 57 2006-02-22 14:52:51 14 52 51 4 58 2006-02-22 14:52:52 14 52 52 3 60 2006-02-22 14:54:42 14 54
2012 Dec 13
3
how to aggregate the dataset
HI, Sorry for messing up.. I want to transform the following dataset: product min_price max_price mean_price country price_band 11 34 50 40 VN 0-300 22 10 30 15 VN 0-300 Into: product VN price_band 11 40 0-300 [34,50] 22 15
2012 Nov 08
5
map two names into one
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]]
2013 Jan 24
3
how to combine unequal rows and columns in R
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
2013 Jan 25
3
how to delete the null elements in list
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]]
2012 Dec 12
2
how to grep in r
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
2013 Mar 14
2
HOw to achieve big vector times big dataframe in R?
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?
2009 Sep 30
2
Change directory to implement same programes
HI, R-Users, I have one problem: I have written the the programs which process all file in one directory: for example: setwd("C:/Documents and Settings/lma/My Documents/Vappu-saved/Log") as the start. .......... But I have many folders like "Vappu-saved" and there are a lot of files in each directory. What I want is using the same program what I write for the above
2013 Jan 22
3
How to align group based on the common values of two columns in r
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
2012 Dec 13
2
How to create multiple country's data into multiple sheets of one excel
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"