NetLogo: line break in output file?? Not so simple.

问题

I tried all options to create a new line in my output file, but still I get a txt-file with everything behind the previous information. Even with this supersimple code:

globals [file]

to setup   clear-all
    set file "results\\GA1.txt"   if is-string? file
     [while [file-exists? file]
        [set file replace-item (length file - 5) file "11" ]
      file-open file] end

to go   tick   write-to-file end

to write-to-file   file-print (word ticks) FILE-TYPE "\n"   file-write 1 file-print (word " " 2 ";")   file-write 1 file-print (word " " 2 ";")     file-print ""  ;; blank line end

I do not get blank lines or line breaks. I work in NetLogo 4.1. Does anybody know what could be the problem?

回答1:

answered at http://netlogo-users.18673.x6.nabble.com/Adding-a-new-line-when-outputting-data-tp4870905p4870909.html where I wrote:

Are you on Windows and using Notepad to view your files? Nearly every other Windows program these days understands Unix-style line breaks, but Notepad doesn't.

回答2:

You forgot to close the file with file-close or to force it to write data to disk with a file-flush.

When you do a file-write the data does not get written to disk immediately. It gets placed in a buffer. When the buffer is large enough the data is written to disk. You can force netlogo to write data to a file by using the file-flush or file-close commands.

回答3:

The reference suggests using a better editor. But there is a way to make Notepad work.

If you add the string "\r\n" to your data (with file-type or whatever), it works with Notepad.

Notepad uses the older carriage return ("\r")/ new line ("\n") format. The Unix systems just use new line.

回答4:

Try this, this works for me

file-open "locations.txt"
   ask turtles
   [file-print xcor]
file-close

if you want more breaks, then use this

file-open "locations.txt"
   ask turtles
   [file-print xcor file-print "\n"]
file-close

来源：https://stackoverflow.com/questions/3455089/netlogo-line-break-in-output-file-not-so-simple

标签

file

line-breaks

netlogo