[R] Performance issue with attributes

Hi All I am having problem running the 'attributes' command to set a attribute on each column of a large dataset. Dataset has 80 columns and 312407 rows. Its taking more than 60 seconds to set simple attributes like split=TRUE, usermissing=FALSE. Here is the source code, assuming Dataset1 is the

Re: [R] Performance issue with attributes

attr() in the data.table package. It can be used too on > data.frames or other objects. > Best, > > Philippe Grosjean > > > On 22 Feb 2014, at 03:13, Smart Guy wrote: > > > Hi All > > > > I am having problem running the 'attributes' command to set a

[R] Problem in writing a R data frame to Excel format using RODBC package

Hi Experts, I was trying to write a data frame which has a header row, from R to Excel disk file using RODBC ( RODBC_1.3-1) package. I met with an issue:- If in sqlSave(), I set a parameter "colnames=FALSE" then I get first row as header in excel file. If 'colnames=TRUE' then it giv

Re: [R] Problem in writing a R data frame to Excel format using RODBC package

ork like this. If any one came across same issue, kindly help me. -Thanks SmartG On 29 August 2011 16:14, Smart Guy wrote: > Hi Experts, > I was trying to write a data frame which has a header row, > from R to Excel disk file using RODBC ( RODBC_1.3-1) package. I met wi

[R] Problem in reading Missing and Measure values, using read.spss().

Hello All, I am using read.spss() to read a SPSS dataset into R data.frame. However I am not able to read user defined MISSING values when it defined as range in SPSS variable view. I am also not able to read the value from the MEASURE column in the SPSS variable view to determine whether a SPSS co

Re: [R] For is.numeric condition in user input

Yes, thats right, readline will give you character and now you need to convert it to numeric to make it work. Thanks SmartG On 25 July 2011 08:51, Ista Zahn wrote: > readline always returns a character. See ?readline for details. > > Best, > Ista > > On Sun, Jul 24, 2011 at 10:59 PM, Bansal, Vi

[R] Losing custom attributes

Hi All, I was adding a new row of data to my data frame using rbind(). I was surprised to see that after adding new row, I lost my data frame level attibute as well as col level attribute. Please help me to insert a new row at frist or middle position so that my custom attribute is not

Re: [R] Losing custom attributes

first dataframe. > I tried to rbind with mydata[NULL,,drop=FALSE] but rbind help states that > empy data frames are dropped from rbind. > So that as a workaround, I have: > > > mydata*<-* rbind > (mydata[1,,drop=FALSE],newrow, mydata)[-1,] > > Eric > > > On 23 N

[R] The use of period in function names and variable names

Hi, I am looking for some guidance on whether I can use the period(.) in function names and variable names. For example: my.function.name <- function(my.data.variable, my.radius, my.another.var, my.value = 10) { } Will this pose any problems regarding older and current version of R. -- Sma

[R] need help on read.spss

Hi, I have one doubt about one of the parameter of 'read.spss()' from 'foreign' package. Here is the syntax :- read.spss ( file, use.value.labels = TRUE, to.data.frame = FALSE, max.value.labels = Inf, trim.factor.names = FALSE, trim_values = TRUE, reencode = NA, u

[R] Add col in data.frame

Hello Gurus, I am still new to R. Here is my issue. I was trying to add column to data frame that was populated by read.spss(). When I used cbind to add a new variable(column). library(foreign) mydf<-read.spss(file="C:/myspss.sav",use.value.labels=FALSE, to.data.frame=TRUE,use.miss

Re: [R] Add col in data.frame

Hi Jim, I am sorry for the typo. Thats 'newcolm' everywhere. Thanks for the help. I think this should work now. :) Thanks and Regards SmartG On 29 October 2011 13:34, Jim Lemon wrote: > On 10/29/2011 06:54 PM, Smart Guy wrote: > >> Hello Gurus, >>

[R] Get missinfg values with dataframe using read.spss

Hi All, Here is my problem. I need to get data frame (and not a list) while reading spss file using read.spss. For which I can put one parameter of read.spss as to.data.frame=TRUE. Now in doing so, I dont get missing values. Is there a way to get missings values along with data frame? T

Re: [R] Get missinfg values with dataframe using read.spss

October 2011 11:23, Joshua Wiley wrote: > Hi Smart Guy, > > You can try use.missings = TRUE. I am not sure how well this will > work. If you really need it and use.missings = TRUE does not work, I > would just read it in as a list, and then maybe create a new data > frame based