[R] strsplit with invalid regular expression
Hi all,
diff_operator - \\(
strsplit(cond, diff_operator)
[[1]]
[1] andsin log_angle_1_4)
diff_operator - \\sin(
strsplit(cond, diff_operator)
Error in strsplit(cond, diff_operator) :
invalid regular expression '\sin(', reason 'Missing ')''
When I am going to split with ( it’s working fine but when i want use
sin( this is not working.
I understand that, I am missing something can anybody please point me.
Thanks for your help.
Thanks,
Bharat
-
Bharat Warule
Pune
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[R] convert ff_vector object into as.Date
hello R Users! Can anybody please help me how to convert ff_vector object into as.Date then I have apply ffwhich condition? class(y_in_ffdf$dateval) [1] ff_vector ff y_in_ffdf$dateval - as.Date(y_in_ffdf$dateval) Error in as.Date.default(y_in_ffdf$dateval) : do not know how to convert 'y_in_ffdf$dateval' to class Date y_in_ffdf - y_in_ffdf[ffwhich(y_in_ffdf$dateval = max_span_start_date),] Thanks, BHarat - Bharat Warule Pune -- View this message in context: http://r.789695.n4.nabble.com/convert-ff-vector-object-into-as-Date-tp4647753.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] Delete first row
Hi, I have to delete first row from my csv file but I don’t want to read total data in to R memory (size is around 10GB). Actually, I want to use LAF package but which read data without header. Can anybody help me to resolve this problem? - Bharat Warule Pune -- View this message in context: http://r.789695.n4.nabble.com/Delete-first-row-tp4647518.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 with read.table.ffdf parameters
Thanks MCOM, This is really helpful for me. - Bharat Warule Pune -- View this message in context: http://r.789695.n4.nabble.com/help-with-read-table-ffdf-parameters-tp3223805p4647527.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] Split CSV as per file size
check this! if it helps!
read_data - read.csv(DataMatrix)
length - dim(read_data)[1]
no_of_files - 10 ##user define
file_no_itr - length/no_of_files
for(i in 1:no_of_files){
e_l - i*file_no_itr
s_l - 1 + (i-1)* file_no_itr
if(i==no_of_files){ e_l - length}
read_data_new - read_data[s_l:e_l,]
newname - paste(read_data,i,sep=_)
assign(read_data_new,newname)
### write ur output data code
}
-
Bharat Warule
Cypress Analytica ,
Pune
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[R] Warning message with read.csv.sql
Hello, I am using read.csv.sql first time for reading the large data file.If I am ran this code that showns warning “closing unused connection”. Is it I am missing any argument from my command or how to comeout from this warning?. R code:- Library(sqldf) ip_dir_path - “D:/BharatWarule/big_data_July” inFile_sql - file.path(ip_dir_path, cypress_modeldev_account_info.csv) input_abt - read.csv.sql(inFile_sql,sql = s) Warning message: closing unused connection 3 (D:/BharatWarule/big_data_July/cypress_modeldev_account_info.csv) Thanks, Bharat - Bharat Warule Cypress Analytica , Pune -- View this message in context: http://r.789695.n4.nabble.com/Warning-message-with-read-csv-sql-tp4636285.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] Rare event in logistic regression
Hello, I am working with logistic analysis in which event rate is 0.005% with large requirds. Is there is any R package which handle rare event in logistic regression. Please let me know? Thanks for your help. Thanks, Bharat - Bharat Warule Cypress Analytica , Pune -- View this message in context: http://r.789695.n4.nabble.com/Rare-event-in-logistic-regression-tp4632656.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] Merging multiple data sets
Hello R user,
I have four data sets in dir D:/Bharat Warule/Rdata_file which are
output_data_prod_1.rda, output_data_prod_2.rda, output_data_prod_3.rda,
output_data_prod_4.rda.
Each data set is huge size like number of rows 343297 and columns are near
to 50.
For example:
x1 - data.frame(x11=c(1,2,3,4,5),x112=c(10,10,10,10,10))
x2 - data.frame(x11=c(1,2,3,4,5),x122=c(20,20,20,20,20))
x3 - data.frame(x11=c(1,2,3,4,5),x132=c(30,30,30,30,30))
x4 - data.frame(x11=c(1,2,3,4,5),x142=c(40,40,40,40,40))
x5 - data.frame(x11=c(1,2,3,4,5),x152=c(50,50,50,50,50))
for(i in 1:5){
name - paste('x',i,sep='')
name1 - paste(name,rda,sep='.')
save(name, file = name1)
}
I want merge this data sets into one data set but I don’t know where I am
going wrong?
Please help me. Thanks for your help.
subsetname - x1
file_no- 4
output_data_prod- data.frame()
for(n in 1:file_no){
myfile- gsub(( ), , paste(subsetname , _, n,.rda))
temp_data - load(file = myfile)
data_22 - get(temp_data)
if(dim(output_data_prod)[1]==0){output_data_prod - data_22
}else{
output_data_prod - merge(inData1 = output_data_prod,
inData2 = data_22 ,type = inner, all=FALSE ,
by =c(x11))}
}
-
Bharat Warule
Cypress Analytica ,
Pune
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[R] “Within is working or not in loop”
“Within is working or not in loop”
for(j in 1:10){
card_bal - as.numeric(segment_cuts$card_bal[[j]])
insurance_bal - as.numeric(segment_cuts$insurance_bal[[j]])
data$segment_rank -
within(data,segment_rank[ data$Total_Balance = total_bal
data$Insurance_Balance = insurance_bal] - “class1” )}
“I am not sure about why within is working inside for loop or not.
I did not get any error but when ran this for j=1 then it will create
duplicate columns in data.
-
Bharat Warule
Cypress Analytica ,
Pune
--
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