search for: rhelpplease

Hi there, I wish to read a 9.6GB .DAT file into R (64-bit R on 64-bit Windows machine) - to then delete a substantial number of rows & then convert to a .csv file. Upon the first attempt the computer crashed (at some point last night). I'm rerunning this now & am closely monitoring Processor/CPU/Memory. Apart from this crash being a computer issue alone (possibly), is R equipped to

Hi there, I wish to merge a common variable between a list and a data.frame & return rows via the data.frame where there is NO match. Here are some details: The list, where the variable/col.name = CLAIM_NO CLAIM_NO 20 83 1440 4439 7002 ... > dim(hrc78_clm_no) [1] 6678 1 The data.frame, where there exists a variable with the same name, CLAIM_NO. > dim(bestPartAreadmin) [1] 13068

Hi there, Does it exist where R can convert a numeric date (20090101) to a "proper" date format? (Ideally dd-mm-yyyy) Original data (in this case) is in .DAT format. I read the multi-column data with the read.fwf function, where I specified the column width for the eight digit date (example above). After the .DAT data is read-in & formatted in R, it is to be exported to Excel.

Hi there, I am having trouble subsetting a data frame by a conditional via one column (of many). I read the file into R through "read.fwf," where I specified column widths. Original data is .DAT. I then utilized "names" function to read in column headings. For one column, PRVDR_NUM, I wish to further amend the entire data set, but only have PRVDR_NUM == 050108. This is