:21
To: 'wtr-general@rubyforge.org'
Subject: RE: [Wtr-general] Writing values to a file
f = File.new("testfile.txt", "a")
f.puts t1.to_s
f.puts t3.to_s
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Tonny Brown
Sent:
f = File.new("testfile.txt", "a")
f.puts t1.to_s
f.puts t3.to_s
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Tonny Brown
Sent: Thursday, August 25, 2005 5:01 AM
To: wtr-general@rubyforge.org
Subject: [Wtr-general] Writing values to a file
Hi there,
Hmm almost there but I get the following error:
'+': string can't be coerced into float (TypeError)
it has to do with the + in
f.write(t3 + "\n")
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Well if you create your file and open it, you can just continue
writing to it no problem. It's when you create your file, close it
for some reason then open it again later on that you might over write
it. But in that case you just open it in append mode so nothing gets
overwritten. Take a look a
thanks.
all done. though i was thinking that if i wanted to
update the text file and NOT replace it, I could not
use the f.write command. Is that right?
i.e. if i want to keep a log of the t1 and t3 values
for a period of 1 minute, getting the values every 10
seconds, the f.write command cannot b
or
f.write(t3.to_s + "\n")
rather if t3 is the line that's giving you trouble
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try:
f.write(t1.to_s + "\n")
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I believe it would be just
f.write(t1 + "\n")
f.write(t3 + "\n")
the "\n" puts the next write on a new line
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