I think you need the fill=TRUE argument. See ?read.table > On Sep 29, 2022, at 11:14, Enrico Schumann <e...@enricoschumann.net> wrote: > > On Thu, 29 Sep 2022, Nick Wray writes: > >> ---------- Forwarded message --------- >> From: Nick Wray <nickmw...@gmail.com> >> Date: Thu, 29 Sept 2022 at 15:32 >> Subject: Re: [R] Reading very large text files into R >> To: Ben Tupper <btup...@bigelow.org> >> >> >> Hi Ben >> Beneath is an example of the text (also in an attachment) and it's the "B", >> of which there are quite a few scattered throughout the text doc which >> causes the reading in error message (btw I don't need the "RAIN" column or >> the 1's after it or the last four elements). I have also attached the >> snippet as text file >> >> 1980-01-01 10:00, 225620, RAIN, 1, 1, WAHRAIN, 5091, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 226918, RAIN, 1, 1, WAHRAIN, 5124, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 228562, RAIN, 1, 1, WAHRAIN, 491, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 231581, RAIN, 1, 1, WAHRAIN, 5213, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 232671, RAIN, 1, 1, WAHRAIN, 487, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 232913, RAIN, 1, 1, WAHRAIN, 5243, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 234362, RAIN, 1, 1, WAHRAIN, 5265, 1001, 0, , 10009, 0, , >> , B >> 1980-01-01 10:00, 234682, RAIN, 1, 1, WAHRAIN, 5271, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 235389, RAIN, 1, 1, WAHRAIN, 5279, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 236466, RAIN, 1, 1, WAHRAIN, 497, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 243350, RAIN, 1, 1, SREW, 484, 1001, 0, , 9, 0, , , >> 1980-01-01 10:00, 243350, RAIN, 1, 1, WAHRAIN, 484, 1001, 0, 0, 9, 9, , , >> >> Thanks Nick >> >> On Thu, 29 Sept 2022 at 15:12, Ben Tupper <btup...@bigelow.org> wrote: >> >>> Hi Nick, >>> >>> It's hard to know without seeing at least a snippet of the data. >>> Could you do the following and paste the result into a plain text >>> email? If you don't set your email client to plain text (from rich >>> text or html) then we are apt to see a jumble of output on our email >>> clients. >>> >>> >>> ## start >>> x <- readLines(filename, n = 20) >>> cat(x, sep = "\n") >>> ## end >>> >>> Cheers, >>> Ben >>> >>> >>> On Thu, Sep 29, 2022 at 9:54 AM Nick Wray <nickmw...@gmail.com> wrote: >>>> >>>> Hello I may be offending the R purists with this question but it is >>>> linked to R, as will become clear. I have very large data sets from the >>> UK >>>> Met Office in notepad form. Unfortunately, I can’t read them directly >>>> into R because, for some reason, although most lines in the text doc >>>> consist of 15 elements, every so often there is a sixteenth one and R >>>> doesn’t like this and gives me an error message because it has assumed >>> that >>>> every line has 15 elements and doesn’t like finding one with more. I >>> have >>>> tried playing around with the text document, inserting an extra element >>>> into the top line etc, but to no avail. >>>> >>>> Also unfortunately you need access permission from the Met Office to get >>>> the files in question so this link probably won’t work: >>>> >>>> https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcatalogue.ceda.ac.uk%2Fuuid%2Fbbd6916225e7475514e17fdbf11141c1&data=05%7C01%7Crmh%40temple.edu%7C3c7f7571b0204227932408daa22d6a35%7C716e81efb52244738e3110bd02ccf6e5%7C0%7C0%7C638000614056886333%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2FolfWagLVB9RNAAR3L88YUnOG8wwDHZFPm5%2BWVWgZ7Y%3D&reserved=0 >>>> >>>> So what I have done is simply to copy and paste the text docs into excel >>>> csv and then read them in, which is time-consuming but works. However >>> the >>>> later datasets are over the excel limit of 1048576 lines. I can paste in >>>> the first 1048576 lines but then trying to isolate the remainder of the >>>> text doc to paste it into a second csv doc is proving v difficult – the >>>> only way I have found is to scroll down by hand and that’s taking ages. >>> I >>>> cannot find another way of editing the notepad text doc to get rid of the >>>> part which I have already copied and pasted. >>>> >>>> Can anyone help with a)ideally being able to simply read the text tables >>>> into R or b)suggest a way of editing out the bits of the text file I >>> have >>>> already pasted in without laborious scrolling? >>>> >>>> Thanks Nick Wray >>>> > > [...] > >>> >>> -- >>> Ben Tupper (he/him) >>> Bigelow Laboratory for Ocean Science >>> East Boothbay, Maine >>> https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.bigelow.org%2F&data=05%7C01%7Crmh%40temple.edu%7C3c7f7571b0204227932408daa22d6a35%7C716e81efb52244738e3110bd02ccf6e5%7C0%7C0%7C638000614056886333%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Qmpsx1aA7kL9lYJYshs1U7PrPqFpYFbzOQWXQvW1RLI%3D&reserved=0 >>> https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Feco.bigelow.org%2F&data=05%7C01%7Crmh%40temple.edu%7C3c7f7571b0204227932408daa22d6a35%7C716e81efb52244738e3110bd02ccf6e5%7C0%7C0%7C638000614056886333%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=IXODOG1eVdJKrHZyrM5yud9gjInLCFNcMGo4dWqFe3I%3D&reserved=0 >>> >> > > Maybe I have missed it, but could you please show how > you tried to read the table? > > When I use your file with > > read.table("sample text.txt", header = FALSE, sep = ",") > > I get > > ## V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11 V12 V13 V14 V15 > ## 1 1980-01-01 10:00 225620 RAIN 1 1 WAHRAIN 5091 1001 0 NA 9 0 NA NA > ## 2 1980-01-01 10:00 226918 RAIN 1 1 WAHRAIN 5124 1001 0 NA 9 0 NA NA > ## ## ..... > ## 7 1980-01-01 10:00 234362 RAIN 1 1 WAHRAIN 5265 1001 0 NA 10009 0 NA NA B > ## 8 1980-01-01 10:00 234682 RAIN 1 1 WAHRAIN 5271 1001 0 NA 9 0 NA NA > > > > -- > Enrico Schumann > Lucerne, Switzerland > https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fenricoschumann.net%2F&data=05%7C01%7Crmh%40temple.edu%7C3c7f7571b0204227932408daa22d6a35%7C716e81efb52244738e3110bd02ccf6e5%7C0%7C0%7C638000614056886333%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=O7lDKov8h%2FuC6kCepouzcWMfaIyzi0L6FBfc1BrE2zo%3D&reserved=0 > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstat.ethz.ch%2Fmailman%2Flistinfo%2Fr-help&data=05%7C01%7Crmh%40temple.edu%7C3c7f7571b0204227932408daa22d6a35%7C716e81efb52244738e3110bd02ccf6e5%7C0%7C0%7C638000614056886333%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=AXPi3UBPFniqQgD%2FWaF3tGpaPROl19tz0XC26sQHvR0%3D&reserved=0 > PLEASE do read the posting guide > https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.r-project.org%2Fposting-guide.html&data=05%7C01%7Crmh%40temple.edu%7C3c7f7571b0204227932408daa22d6a35%7C716e81efb52244738e3110bd02ccf6e5%7C0%7C0%7C638000614056886333%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=dMj3dYXs8aPT7lXJVnnarZZp%2BAukdJcI%2BxEpn2reHCM%3D&reserved=0 > and provide commented, minimal, self-contained, reproducible code.
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