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Newsgroups: comp.graphics.apps.gnuplot
Date: Thu, 11 Feb 2016 22:23:26 -0800 (PST)
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Subject: X-axis display!
From: kunrooney@gmail.com
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Xref: csiph.com comp.graphics.apps.gnuplot:3227

My two files are:
0.4 95.1 
0.8 94.9 
1.2 92.2 
1.6 91.6 
2.0 89.7 

0.4 111.8 
0.8 110.9 
1.2 108.2 
1.6 105.6 
2.0 104.7 

My gnuplot code is 
set terminal png
set output 'test.png'
set timefmt "%S"
set key top left
set xdata time
set format x "%f"
set autoscale
set format y "%.f"
set xr [0.4:2.0]
set yr [85:115]
set grid
set style data linespoints

plot  "1.txt" using 1:2 lw 1.5 pt 3 title 'Sample1',\
                "2.txt" using 1:2 lw 1.5 pt 4 title 'Sample2',\


The y-axis is fine but on x-axis i am getting display like this:
00:00 00:00 00:01 instead of 0.4, 0.8, 1.2 etc.