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Date: Wed, 22 Aug 2012 13:28:38 -0400
Subject: Re: writelines puzzle
From: Jerry Hill <malaclypse2@gmail.com>
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On Wed, Aug 22, 2012 at 11:38 AM, William R. Wing (Bill Wing)
<wrw@mac.com> wrote:
> Much to my surprise, when I looked at the output file, it only contained 160 characters.  Catting produces:
>
> StraylightPro:Logs wrw$ cat RTT_monitor.dat
> 2354[ 734716.72185185  734716.72233796  734716.72445602 ...,  734737.4440162
>   734737.45097222  734737.45766204][ 240.    28.5   73.3 ...,   28.4   27.4   26.4]

If that's the full output, then my guess is that x_dates and y_rtt are
not actual python lists.  I bet they are, in fact, numpy arrays and
that the string representation of those arrays (what you're getting
from str(x_dates), etc) include the '...' in the middle instead of the
full contents.

Am I close?

-- 
Jerry