[Gnuplot-info] Coloring 2D data points

[antarctidaonline <ant...@ya...>]

Please explain me something about keyword "palette". I have the same task as
user ranlot in the very first message. So, for example, I have such file,
with name "1.txt":

10	5	3
20	8	2
30	6	1
40	9	0

I read documentation and wrote such a script:

set encoding koi8r

set border
set xtics border
set mxtics
set ytics axis

set grid xtics ytics

set xrange [0:50]
set yrange [0:10]

set palette model RGB maxcolors 4
set palette defined ( 0 "blue", 1 "green", 2 "yellow", 3 "red" )

plot 		'1.txt' using 1:2:3 with points pointtype 5 palette
pause mouse

Well, I get such an image:
http://old.nabble.com/file/p27451009/Pict.jpg 
All points are yellow! It is because z coordinates of points are all in
interval from 0 to 5, wich belongs to yellow color. But how I can change
this intervals? I need all points to be different colors. And - what I need
to write to delete "color legend" at right side of graph?
And, of course, I use Windows version of gnuplot 4.2.
-- 
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