Displaying 2 results from an estimated 2 matches for "trialnum".
Did you mean:
dialnum
2010 Apr 30
0
RMySQL and dates
I am trying to read and write database tables that have a date field in
them.
I am constructing a data.frame, then using dbWriteTable to create the
table and dbReadTable to read it.
>datatbl<-data.frame( dates, trialnum, fooddel, ethdel, trialtime,
trialtype, deliveries, food, ethanol, fcumrec, dcumrec, rrf, rrd)
>ifelse(startdate==filelist, filetbl<-datatbl,filetbl<-rbind(filetbl,
datatbl))
>dbWriteTable(con, subj, as.data.frame(filetbl), overwrite=T)
This creates the table named for the conten...
2009 May 23
1
Clean up a complex variable
...5(a=1) >5.32(a=1)
what i need to do is to remove the text (a=1) and (b=1) and the ">" in the
V1, and then convert to a numeric variable, and als I am aslo requested that
when the value has a=1, the value needs to be divided by 5.
what I did is:
trialchara<-as.character(trial$V1)
trialnum<-gsub("(a=1)|(b=1)|>","",trialchara)
the result is
[1] "0 ()" "0 ()" "0.133 ()" "0.555 ()" "5.32 ()"
How can I get rid of the () symbol?
How can I do this part "when the value has a=1, the value needs to be
divided by...