[R] Converting corpus into dataframe in r tm package

HI , I would like to do stemming operation on vector of words using tm package. I am using R 2.8.1 and tm package for same. For doing any operations i tm package the data first needs to be converted to corpus and then use various commands in tm package. No problem is I am not able to convert

[R] R windows close while calculating frequency

HI , I am using R on a very huge datasets which contains lot of text. I prepared a all word vector of words by using strsplit function. Now I want to compute frequency of unique words from all word vector. For doing so, I used two ways 1) as.data.frame(table(x)) 2) sapply(x,x,length) x contains

[R] Checking datetime value

Hi , I would like to check if a column contains datetime values. (column may contain any datetime format or just numbers or string). Request your help -- View this message in context: http://r.789695.n4.nabble.com/Checking-datetime-value-tp4679963.html Sent from the R help mailing list

Re: [R] Barplot with Secondary axis

Thanks Rui and Greg for providing me the solution , it Works. -- View this message in context: http://r.789695.n4.nabble.com/Barplot-with-Secondary-axis-tp4640980p4641081.html Sent from the R help mailing list archive at Nabble.com. __

[R] Barplot with Secondary axis

Hi all, I am trying to plot a bar chart and trying to plot a line as a secondary axis as my scale is different for two y axis. I am plotting a clustered bar chart by using besides = True option in barplot function and my y coordinates are not plotted exactly at the center on each two bars.

[R] How to read japanese characters from a database/file

Hi, I am using rodbc package to connect with Sql Server 2005. I have a table which contains some japanese characters. Now I want to use these japanese characters as labels in simple x y plot? Here is the data in the table サービスデスク 35355 データネットワーク 8417 I want to read this data from

[R] Removing Corrupt file

corrupted and we cannot delete this file from current R Session. I Have tried commands like file.remove() and unlink to remove the corrupt file from current R session. Is there any other way inorder to remove such files?? Thanks Regards, Vikrant -- View this message in context: http://r

[R] Inserting multiple queries in sql server 2005 using RODBC in R

I am trying to insert multiple insert statements through R using RODBC. Initially Every time I am creating Insert statements and executing queries one by one.This takes lot of time since everytime the query is created and inserted. Is there any other way So that I can insert Multiple Insert

[R] how to remove border while saving R plots ?

I am saving R graph as a jpeg image and the border is plotted defaultly when you open the image.How can I avoid the border? small R code is as follows :- volume- seq(100,10,-10) jpeg(filename = mygraph.jpg,width=366,height=284,units=px) {

[R] how to insert R plot/image/graphs to Sql server 2005?

-- View this message in context: http://r.789695.n4.nabble.com/how-to-insert-R-plot-image-graphs-to-Sql-server-2005-tp2955667p2955667.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list

[R] Multivariate control charts in R ?

Hi All, I want to know is there any package in R which can plot multivariate control charts ?? Thanks in advance, Vikrant. -- View this message in context: http://r.789695.n4.nabble.com/Multivariate-control-charts-in-R-tp2336576p2336576.html Sent from the R help mailing list archive

[R] Detecting seasonality

be helpful ? Also the method should give period of seasonality. Thanks, Vikrant -- View this message in context: http://r.789695.n4.nabble.com/Detecting-seasonality-tp2306292p2306292.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r

Re: [R] Detecting seasonality

Hi jannis, Thanks for replying I will try to make my question more clear. Actually I have many Hourly time series and I want to automatically detect whether seasonality is present in this series or not.If Yes, Then I need to find the period after which the seasonal pattern repeats. For this

[R] How to get vector of poitions in a vector ?

I have a vector a = c(1,0,0,0,1,0,4,0,0,0) Now I want to get a vector of positions in a vector a where the value is non zero.. How to do it?? -- View this message in context: http://r.789695.n4.nabble.com/How-to-get-vector-of-poitions-in-a-vector-tp227p227.html Sent from the R help

[R] Saving R plots as image in oracle database tables

Dear All, I want to know how to save R plots as image/object in a oracle database?? I am using RODBC package for connecting R to oracle Please explain by giving example.. Thanks in advance Cheers, Vikrant -- View this message in context: http://r.789695.n4.nabble.com/Saving-R-plots-as-image

[R] Error while Executing Oracle procedures through R

Dear ALL, I have installed RODBC package in R and successfully connected to Oracle. Now my question is when I am trying to execute oracle procedures though R, I am not able to do it. Simple oracle queries like select * from dbtable are successfully executed. but the command for execution of

Re: [R] Error while Executing Oracle procedures through R

Are there any commands for executing oracle procedures through R ?? -- View this message in context: http://r.789695.n4.nabble.com/Error-while-Executing-Oracle-procedures-through-R-tp2293609p2294925.html Sent from the R help mailing list archive at Nabble.com.

Re: [R] Error while connecting to Oracle using RODBC package

Thanks Marc Daniel for your replies. I am now able to connect R to oracle using RODBS. There was an error while setting up the DSN. Now it is solved. Thanks once again -- View this message in context:

[R] Error while connecting to Oracle using RODBC package

Dear All, I want to connnect R with oracle. I am using RODBC package for this connection. Following is my code to connect library(RODBC) channel - odbcConnect(Vikrant) I am getting following error. 1: In odbcDriverConnect(DSN=Vikrant) : [RODBC] ERROR: state NA000, code 12288, message

Re: [R] ccf function

Hi Megan, Answer for you third question. This function will return the maximum CCF value along with corresponding lag value. Input to this function are a and b which are nothing but two time series. Find_Max_CCF- function(a,b) { d - ccf(a, b, plot = FALSE) cor = d$acf[,,1] lag =

Re: [R] Error while connecting to Oracle using RODBC package

Please help if anybody has got this error earlier. Or please explain how should I use package RODBC to connect to oracle -- View this message in context: http://r.789695.n4.nabble.com/Error-while-connecting-to-Oracle-using-RODBC-package-tp2288304p2288389.html Sent from the R help mailing list

[R] Regarding installation from ROracle

I am using windows Xp OS and R 2.10. I treid to install ROracle package and I got following error:- This application has failed to start because orasql9.dll was not found. Re-installing the application may fix this problem I have already installed the dependecy package DBI Please help

Re: [R] help! - spectral analysis - spec.pgram

series -c(0,0,0,0,0,10,0,0,0,0,0,10,0,0,0,0,0,10,0,0,0,0,0,10,0,0,0,0,0,10 ,0,0,0,0,0,10,0,0,0,0,0,10,0,0,0,0,0,10,0,0,0,0,0,10,0,0,0,0,0,10) Here ain this example after period 4 the pattern repeats. So we can say that the above series have a period of 4. Now my question is by using the

Re: [R] help! - spectral analysis - spec.pgram

Really Thanks Uwe . I have started reading books about Fourier analysis. -- View this message in context: http://r.789695.n4.nabble.com/help-spectral-analysis-spec-pgram-tp851439p2216443.html Sent from the R help mailing list archive at Nabble.com.

Re: [R] help! - spectral analysis - spec.pgram

Dear Prof Brian, I am new to spectral analysis. I dont know how to obtain period from spectral periodogram. If u could explain me about how to obtain the period from periodogram it will be very helpful. U can explain using the above two examples in the discussiion. Thanks in advance.. -- View

[R] How to identify seasonality in time series data??

Dear ALL R Experts, I have a time series and I want to detect presence of seasonality in this time series. I know the method of plotting the Autocorrelation function(acf) and if there are significant lags after period s,2s,3s,... then s is the period for the time series. But my problem is

[R] how to find presence of seasonality in time series data without using graphs ?

and if seasonality is present need to detemine the time period T . Thanks Regards, Vikrant -- View this message in context: http://r.789695.n4.nabble.com/how-to-find-presence-of-seasonality-in-time-series-data-without-using-graphs-tp2123523p2123523.html Sent from the R help mailing list archive

[R] Finding the max correlation coefficient value using CCF function

Hi All, Suppose I have 2 time series a = 1:20 b = 5:15 and I am finding the cross correlation between these two time series using CCF function. c = ccf(a,b) print(c) Autocorrelations of series ‘X’, by lag -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4

Re: [R] R connection with sql server 2005

,paste(select * from,dbname,..,dbtable) } my(driver=SQL Server;server= 01hd166373,test_db,test_vikrant) Cheers, Vikrant. -- View this message in context: http://n4.nabble.com/R-connection-with-sql-server-2005-tp1478145p1478484.html Sent from the R help mailing list archive at Nabble.com

Re: [R] Running rscript in windows

Thanks a lot, really. dir() option showd my desktop files and test.R was shown as test.R.txt when I run source(test.R.txt) it worked. Just for your information, I changed the directory using Menu options File- change dir. I verified the same using getwd() command in R. ' -- View this message

Re: [R] problems with SPC charts in R

Dear Bart, According to your suggestion I wrote to maintainer of the package and the reply which I got is as follows:- You shouldn't use R charts for monitoring dispersion using sample sizes larger than 20, and for sample sizes greater than 25 you get an error. From theory, R chart used

[R] R connection with sql server 2005

Dear R experts, I am using RODBC package. library(RODBC) channel- odbcDriverConnect(driver=SQL Server;server=,servername) data- sqlQuery(channel,select * from dbname .. dbtable) Here if i use this it is getting executed successfully. But when i put this in a function as

[R] Problems with looping in R

Dear R Experts, This is my R function. my-function(servername,dbname,dbtable){ library(RODBC) channel- odbcDriverConnect(paste(driver=SQL Server;server=,servername)) init_data- sqlQuery(channel,paste(select * from,dbname,..,dbtable)) init_data -

Re: [R] Problems with looping in R

Thanks Dieter. It works. -- View this message in context: http://n4.nabble.com/Problems-with-looping-in-R-tp1475550p1475619.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list

[R] Running rscript in windows

Dear R experts, Suppose I have a small r function myfunction - function(x) { return(x*x) } and I save this function in a test.R text file. Suppose when I open a new seesion in R and I want to run this function myfunction(3) .how should i do it?? -- View this message in context:

Re: [R] Running rscript in windows

Hi, I saved the function in test.R file on Desktop. Then after starting R I changed my directory to desktop. and tried the command source(test.R) it gave me following error Error in file(file, r, encoding = encoding) : cannot open the connection In addition: Warning message: In file(file,

[R] Help on R functions

Dear R Experts, I have written a following function :- myfunction- function(servername,dbname,dbtablename){ library(RODBC) channel - odbcDriverConnect(driver=SQL Server;server=servername) initdata- sqlQuery(channel,paste(select * from dbname .. dbtablename)) return(dim(initdata)) } I have

Re: [R] problems with SPC charts in R

Thanks Bart and Peter for your help and the example is working for c chart as well withut any error. But when I am plotting the R chart i am still getting the following error. Error in limits.R(center = 62614.0571428571, std.dev = NA_real_, sizes = c(1000L, : group size must be less than 51

[R] problems with SPC charts in R

Hi all, I am using SPC techniques of plotting Xbar, R, S, P and C charts in R.For this I am using qcc package in R and also using the following document for reference. http://www.stat.unipg.it/~luca/Rnews_2004-1-pag11-17.pdf But while plotting S chart, R chartchart and also C chart I am getting

Re: [R] problems with SPC charts in R

ok. I will give the example for which i m getting this error. The data for plotting R chart and S chart is very huge. SO i will take example for plotting C chart. Data is a follows :- sample D sizetrial 1 11 1000TRUE 2 11 1000TRUE 3 13 1000

[R] Problems with fitdistr

Hi, I want to estimate parameters of weibull distribution. For this, I am using fitdistr() function in MASS package.But when I give fitdistr(c,weibull) I get a Error as follows:- Error in optim(x = c(4L, 41L, 20L, 6L, 12L, 6L, 7L, 13L, 2L, 8L, 22L, : non-finite value supplied by

Re: [R] Problems with fitdistr

Yes I do have zeros in my data. But I m not able to understand y inclusion of zeros results in error messages, because range for x in weibull distribution is x=0. Can you please clarify this doubt? -- View this message in context:

[R] how to open excel 2007 (.xlsx) file in R

i am unable to open a file which is saved as .xlsx format in R . The file contains approximately 1,50,000 rows. So I m not able to save it as csv file.Please suggest ways to open this file -- View this message in context:

[R] How to detect and exclude outliers in R?

Suppose I am reading data from a file and the data contains some outliers. I want to know if it is possible in R to automatically detect outliers in a dataset and remove them -- View this message in context: http://n4.nabble.com/How-to-detect-and-exclude-outliers-in-R-tp1017285p1017285.html

[R] Can I save R graphs as a R objects

Can I save R graphs as a R objects ? IF yes then if I click this R object can I edit my chart as in Excel. Please suggest your views -- View this message in context: http://n4.nabble.com/Can-I-save-R-graphs-as-a-R-objects-tp1014621p1014621.html Sent from the R help mailing list archive at

[R] Connecting R with MS SQL server 2005

Is it possible to connect R with Ms SQL Server 2005 ? If Yes how to connect it and can you please provide some tutorial for it? -- View this message in context: http://n4.nabble.com/Connecting-R-with-MS-SQL-server-2005-tp1014643p1014643.html Sent from the R help mailing list archive at

[R] Barplots in R

Suppose I need to draw a Grouped bar plot with 100 values on the X axis. Now my question is If I need to highlight suppose first three values by some color say 'red' and also I need to highlight last 5 datavalues by some color say 'blue' and the rest of the data in between I need not display. Is

Re: [R] Connecting R with MS SQL server 2005

If anybody can provide me a link it will be very much helpful -- View this message in context: http://n4.nabble.com/Connecting-R-with-MS-SQL-server-2005-tp1014643p1014669.html Sent from the R help mailing list archive at Nabble.com. __

[R] Java to R interface.

. and gave the command R CMD INSTALL rJava_0.7-0.tar.gz. I got the followin Errors :- Warning in install.packages(rJava) : argument 'lib' is missing: using '/home/vikrant/R/i486-pc-linux-gnu-library/2.9' trying URL 'http://cran.uk.r-project.org/src/contrib/rJava_0.7-0.tar.gz' Content type

Re: [R] Quadratic Constraints

Thanks Hans for ur help I will try to solve the problem accordingly if there are any problems will contact u surely . -- View this message in context: http://www.nabble.com/Quadratic-Constraints-tp25528480p25530553.html Sent from the R help mailing list archive at Nabble.com.

Re: [R] Quadratic Constraints

Hi Hans, I am very much thankful to you for helping me to solve the problem. I went through the link provided by you and tried to solve the problem. But I think there's some problem with the code. So it is not arriving at the optimal solution.In Some cases it shows optimum solution while in some

[R] Quadratic Constraints

HI All, I am unable to solve a optimization Problem Please Help Me out of this to solve. The Optimization problem is as follows :- My objective function is linear and one of the constraint is quadratic. Min z = 5 * X1 + 9* X2 + 7.15 *X3 + 2 * X4 subject to X1 + X2 + X3 +X4 = 9 X1 + X4 =

[R] Linear objective function with Quadratic constraints

I am new to R and I want to solve this following problem using R. My Objective function is a linear function with Quadratic constraints.I want to know how to solve this problem and which package will be helpful for me for solving such type of problems.Moreover my one constraint is linear and