Re: Strange extra line when plotting

[Nighteye]

Nighteye wrote:
> 
> 
> 
> John W. Eaton-3 wrote:
>> 
>> On  8-Dec-2009, Nighteye wrote:
>> 
>> | Here is the graph
>> |
>> http://s469.photobucket.com/albums/rr51/Joza90/?action=view&current=octaveline.jpg
>> | 
>> | And here is the code (quite simple):
>> | 
>> | A=load("-ascii","dataout.txt);
>> | q=A(:,1);
>> | P=A(:,2);
>> | loglog(q,P);
>> | 
>> | Data seems ok to me (I guess I should not post it as it is quite long)
>> so I
>> | wonder what im doing wrong..
>> | 
>> | I tried restarting octave already. I've got Octave-3.2.2
>> | 
>> | And I didnt post a bug report because I don't think this is a bug. It
>> must
>> | be me doing something wrong.
>> ....
>> 
> 
> This looks to me like a "flyback" to one "bad" point. If so, there are no
> points along that line, you can tell by doing:
> loglog(q,P,"*").  If so, the value of the bad point is near ~ (1E-3,1E6). 
> If you look close, the flyback comes from near (but not at) the end of the
> data set;  To get it's index (line number in the data set), try:  find (q 
> < 1.2E-3).  Then you could use a text editor to remove it from the data
> file.
> 
> 

I doubt it. The data seems ok and if that would be the problem, the same
error wouldnt exist with code
  x=5:1:203;
  y=6:1:204;
  loglog(x,y)

Found this while writing to the bug report thing. Also removing _any_ point
or adding any point fixes the problem so its a problem with exactly 199...
numbers? I dont know what they are called in english. =D
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