Re: [R] Help needed for getYahooData in TTR package writing the Yahoo data to excel
Thanks David. You mentioned that I need to insert an extra cell and move the header over one position. I tried for a few times but still coudnt figure out how. Can you pls advise? Many thanks. On Sun, Oct 10, 2010 at 11:55 AM, David Winsemius dwinsem...@comcast.netwrote: On Oct 9, 2010, at 10:54 PM, missvanilla wrote: Dear all, I'm totally new to R. Recently I've been trying to use getYahooData in TTR package in order to download stock index daily open/high/low/close. The downloaded data is in the format of Open High Low Close Volume 2000-01-04 18937.45 19187.61 18937.45 19002.86 0 2000-01-05 19003.51 19003.51 18221.82 18542.55 0 2000-01-06 18574.01 18582.74 18168.27 18168.27 0 2000-01-07 18194.05 18285.73 18068.10 18193.41 0 2000-01-11 18246.10 18887.56 18246.10 18850.92 0 2000-01-12 18780.17 18811.87 18626.92 18677.42 0 2000-01-13 18667.18 18845.03 18667.18 18833.29 0 2000-01-14 18882.99 19058.02 18733.83 18956.55 0 2000-01-17 19025.62 19442.58 19025.62 19437.23 0 2000-01-18 19412.47 19412.47 19145.17 19196.57 0 However, when I attempted to write the data to excel using write.table, dates in the first colume become 1,2,3,4 in the excel file. Same problem happened if write.csv was used. If you run these two lines of code you'll get what I meant.. before running the code, package TTR needs to be loaded. N225 - getYahooData(^N225, 2101, ) write.table(N225,Nikkei.xls,sep='\t', row.name = TRUE , col.name = NA) There is a well-described problem with write.table files going into Excel. There is no leading item or tab on the first row. You need to insert an extra cell and move the header over one position. Then you won't be misinterpreting your row.names as dates. -- David Appreciate your kind assistance! Thanks a lot in advance. -- View this message in context: http://r.789695.n4.nabble.com/Help-needed-for-getYahooData-in-TTR-package-writing-the-Yahoo-data-to-excel-tp2970017p2970017.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Help needed for getYahooData in TTR package writing the Yahoo data to excel
Just trying to be clearer on the problem faced, the dates in the 1st colume become 1,2,3,4 in excel as below, the screenshot of how data appears in excel is attached. Open High Low Close Volume 1 18937.45 19187.61 18937.45 19002.86 0 2 19003.51 19003.51 18221.82 18542.55 0 3 18574.01 18582.74 18168.27 18168.27 0 4 18194.05 18285.73 18068.10 18193.41 0 5 18246.10 18887.56 18246.10 18850.92 0 . . On Sun, Oct 10, 2010 at 11:55 AM, David Winsemius dwinsem...@comcast.netwrote: On Oct 9, 2010, at 10:54 PM, missvanilla wrote: Dear all, I'm totally new to R. Recently I've been trying to use getYahooData in TTR package in order to download stock index daily open/high/low/close. The downloaded data is in the format of Open High Low Close Volume 2000-01-04 18937.45 19187.61 18937.45 19002.86 0 2000-01-05 19003.51 19003.51 18221.82 18542.55 0 2000-01-06 18574.01 18582.74 18168.27 18168.27 0 2000-01-07 18194.05 18285.73 18068.10 18193.41 0 2000-01-11 18246.10 18887.56 18246.10 18850.92 0 2000-01-12 18780.17 18811.87 18626.92 18677.42 0 2000-01-13 18667.18 18845.03 18667.18 18833.29 0 2000-01-14 18882.99 19058.02 18733.83 18956.55 0 2000-01-17 19025.62 19442.58 19025.62 19437.23 0 2000-01-18 19412.47 19412.47 19145.17 19196.57 0 However, when I attempted to write the data to excel using write.table, dates in the first colume become 1,2,3,4 in the excel file. Same problem happened if write.csv was used. If you run these two lines of code you'll get what I meant.. before running the code, package TTR needs to be loaded. N225 - getYahooData(^N225, 2101, ) write.table(N225,Nikkei.xls,sep='\t', row.name = TRUE , col.name = NA) There is a well-described problem with write.table files going into Excel. There is no leading item or tab on the first row. You need to insert an extra cell and move the header over one position. Then you won't be misinterpreting your row.names as dates. -- David Appreciate your kind assistance! Thanks a lot in advance. -- View this message in context: http://r.789695.n4.nabble.com/Help-needed-for-getYahooData-in-TTR-package-writing-the-Yahoo-data-to-excel-tp2970017p2970017.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Help needed for getYahooData in TTR package writing the Yahoo data to excel
On Oct 10, 2010, at 5:27 AM, vanilla fantasy wrote: Just trying to be clearer on the problem faced, the dates in the 1st colume become 1,2,3,4 in excel as below, the screenshot of how data appears in excel is attached. I can affirm that there was at one time a jpg since you copied me an my mail client is much less suspicious about attachments than is the mainly lis server. Nobody else got a copy, though. Open High Low Close Volume 1 18937.45 19187.61 18937.45 19002.86 0 2 19003.51 19003.51 18221.82 18542.55 0 3 18574.01 18582.74 18168.27 18168.27 0 4 18194.05 18285.73 18068.10 18193.41 0 5 18246.10 18887.56 18246.10 18850.92 0 THat was really not a data.frame in R, but rahter an xts object and when write.table coverted it to a data.frame the dates (which were an attribute got stripped off.: str(N225) An ‘xts’ object from 2000-01-04 to 2010-10-08 containing: Data: num [1:2644, 1:5] 18937 19004 18574 18194 18246 ... - attr(*, dimnames)=List of 2 ..$ : NULL ..$ : chr [1:5] Open High Low Close ... Indexed by objects of class: [POSIXt,POSIXct] TZ: xts Attributes: NULL str(as.data.frame(N225)) 'data.frame': 2644 obs. of 5 variables: $ Open : num 18937 19004 18574 18194 18246 ... $ High : num 19188 19004 18583 18286 1 ... $ Low : num 18937 18222 18168 18068 18246 ... $ Close : num 19003 18543 18168 18193 18851 ... $ Volume: num 0 0 0 0 0 0 0 0 0 0 ... You probably first need to extract the dates from that xts object names(attributes(N225)) [1] index dim dimnamesclass .indexCLASS [6] .indexTZ str(attr(N225, index)) num [1:2644] 9.47e+08 9.47e+08 9.47e+08 9.47e+08 9.48e+08 ... So the dates are not in a DateTime format, but experimentation shows them to be a series of 5:00:: if treated as POSIXct. dts - as.POSIXct(attributes(N225)$index, origin=1970-01-01) str(dts) POSIXct[1:2644], format: 2000-01-04 05:00:00 2000-01-05 05:00:00 ... You will first need to use as.data.frame to re-class the data matrix in N225 and then add a column of dates. Sorry for the initial off-base reply. I should have looked at the tab separated file you created rather than assuming I what would happen. Maybe all in one stroke: N225df - cbind(dts, as.data.frame(N225) ) str(N225df) 'data.frame': 2644 obs. of 6 variables: $ dts : POSIXct, format: 2000-01-04 05:00:00 2000-01-05 05:00:00 ... $ Open : num 18937 19004 18574 18194 18246 ... $ High : num 19188 19004 18583 18286 1 ... $ Low : num 18937 18222 18168 18068 18246 ... $ Close : num 19003 18543 18168 18193 18851 ... $ Volume: num 0 0 0 0 0 0 0 0 0 0 ... -- David. . . On Sun, Oct 10, 2010 at 11:55 AM, David Winsemius dwinsem...@comcast.net wrote: On Oct 9, 2010, at 10:54 PM, missvanilla wrote: Dear all, I'm totally new to R. Recently I've been trying to use getYahooData in TTR package in order to download stock index daily open/high/low/close. The downloaded data is in the format of Open High Low Close Volume 2000-01-04 18937.45 19187.61 18937.45 19002.86 0 2000-01-05 19003.51 19003.51 18221.82 18542.55 0 2000-01-06 18574.01 18582.74 18168.27 18168.27 0 2000-01-07 18194.05 18285.73 18068.10 18193.41 0 2000-01-11 18246.10 18887.56 18246.10 18850.92 0 2000-01-12 18780.17 18811.87 18626.92 18677.42 0 2000-01-13 18667.18 18845.03 18667.18 18833.29 0 2000-01-14 18882.99 19058.02 18733.83 18956.55 0 2000-01-17 19025.62 19442.58 19025.62 19437.23 0 2000-01-18 19412.47 19412.47 19145.17 19196.57 0 However, when I attempted to write the data to excel using write.table, dates in the first colume become 1,2,3,4 in the excel file. Same problem happened if write.csv was used. If you run these two lines of code you'll get what I meant.. before running the code, package TTR needs to be loaded. N225 - getYahooData(^N225, 2101, ) write.table(N225,Nikkei.xls,sep='\t', row.name = TRUE , col.name = NA) There is a well-described problem with write.table files going into Excel. There is no leading item or tab on the first row. You need to insert an extra cell and move the header over one position. Then you won't be misinterpreting your row.names as dates. -- David Appreciate your kind assistance! Thanks a lot in advance. -- View this message in context: http://r.789695.n4.nabble.com/Help-needed-for-getYahooData-in-TTR-package-writing-the-Yahoo-data-to-excel-tp2970017p2970017.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. nikkei screenshot.jpg
Re: [R] Help needed for getYahooData in TTR package writing the Yahoo data to excel
On Sun, Oct 10, 2010 at 8:09 AM, David Winsemius dwinsem...@comcast.net wrote: On Oct 10, 2010, at 5:27 AM, vanilla fantasy wrote: Just trying to be clearer on the problem faced, the dates in the 1st colume become 1,2,3,4 in excel as below, the screenshot of how data appears in excel is attached. I can affirm that there was at one time a jpg since you copied me an my mail client is much less suspicious about attachments than is the mainly lis server. Nobody else got a copy, though. Open High Low Close Volume 1 18937.45 19187.61 18937.45 19002.86 0 2 19003.51 19003.51 18221.82 18542.55 0 3 18574.01 18582.74 18168.27 18168.27 0 4 18194.05 18285.73 18068.10 18193.41 0 5 18246.10 18887.56 18246.10 18850.92 0 THat was really not a data.frame in R, but rahter an xts object and when write.table coverted it to a data.frame the dates (which were an attribute got stripped off.: write.zoo in the zoo package can write xts objects. See ?write.zoo: write.zoo(N225, file = myfile.dat, ...possibly other arguments...) -- Statistics Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Help needed for getYahooData in TTR package writing the Yahoo data to excel
Dear all, I'm totally new to R. Recently I've been trying to use getYahooData in TTR package in order to download stock index daily open/high/low/close. The downloaded data is in the format of Open High Low Close Volume 2000-01-04 18937.45 19187.61 18937.45 19002.86 0 2000-01-05 19003.51 19003.51 18221.82 18542.55 0 2000-01-06 18574.01 18582.74 18168.27 18168.27 0 2000-01-07 18194.05 18285.73 18068.10 18193.41 0 2000-01-11 18246.10 18887.56 18246.10 18850.92 0 2000-01-12 18780.17 18811.87 18626.92 18677.42 0 2000-01-13 18667.18 18845.03 18667.18 18833.29 0 2000-01-14 18882.99 19058.02 18733.83 18956.55 0 2000-01-17 19025.62 19442.58 19025.62 19437.23 0 2000-01-18 19412.47 19412.47 19145.17 19196.57 0 However, when I attempted to write the data to excel using write.table, dates in the first colume become 1,2,3,4 in the excel file. Same problem happened if write.csv was used. If you run these two lines of code you'll get what I meant.. before running the code, package TTR needs to be loaded. N225 - getYahooData(^N225, 2101, ) write.table(N225,Nikkei.xls,sep='\t', row.name = TRUE , col.name = NA) Appreciate your kind assistance! Thanks a lot in advance. -- View this message in context: http://r.789695.n4.nabble.com/Help-needed-for-getYahooData-in-TTR-package-writing-the-Yahoo-data-to-excel-tp2970017p2970017.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Help needed for getYahooData in TTR package writing the Yahoo data to excel
On Oct 9, 2010, at 10:54 PM, missvanilla wrote: Dear all, I'm totally new to R. Recently I've been trying to use getYahooData in TTR package in order to download stock index daily open/high/low/close. The downloaded data is in the format of Open High Low Close Volume 2000-01-04 18937.45 19187.61 18937.45 19002.86 0 2000-01-05 19003.51 19003.51 18221.82 18542.55 0 2000-01-06 18574.01 18582.74 18168.27 18168.27 0 2000-01-07 18194.05 18285.73 18068.10 18193.41 0 2000-01-11 18246.10 18887.56 18246.10 18850.92 0 2000-01-12 18780.17 18811.87 18626.92 18677.42 0 2000-01-13 18667.18 18845.03 18667.18 18833.29 0 2000-01-14 18882.99 19058.02 18733.83 18956.55 0 2000-01-17 19025.62 19442.58 19025.62 19437.23 0 2000-01-18 19412.47 19412.47 19145.17 19196.57 0 However, when I attempted to write the data to excel using write.table, dates in the first colume become 1,2,3,4 in the excel file. Same problem happened if write.csv was used. If you run these two lines of code you'll get what I meant.. before running the code, package TTR needs to be loaded. N225 - getYahooData(^N225, 2101, ) write.table(N225,Nikkei.xls,sep='\t', row.name = TRUE , col.name = NA) There is a well-described problem with write.table files going into Excel. There is no leading item or tab on the first row. You need to insert an extra cell and move the header over one position. Then you won't be misinterpreting your row.names as dates. -- David Appreciate your kind assistance! Thanks a lot in advance. -- View this message in context: http://r.789695.n4.nabble.com/Help-needed-for-getYahooData-in-TTR-package-writing-the-Yahoo-data-to-excel-tp2970017p2970017.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
