#!/usr/bin/gnuplot -persist
set terminal postscript solid color eps enhanced
#set terminal png enhanced
set output "2.1.1.ps"
set encoding koi8r

#set label 11 center at graph 0.5,char 0.5 "Рис.2 Результаты измерений напряжения V_{B} в зависимости от тока I_{A} для проволок разной длины l и их линейная аппроксимация y = kx" font "Arial,10"
set grid
set xlabel "N, Вт"
set ylabel '/Symbol D T, ^\circ C'

set multiplot
set yrange [0:8]
set xrange [0:1.5]
set key spacing 2
set key bottom right
set key off

set style line 1 lt 1 pt 7 ps 0.5 lc rgb "red" 
set style line 2 lt 1 pt 7 ps 0.5 lc rgb "blue"
#set style line 3 lt 1 pt 7 ps 0.5 lc rgb "green"
set style line 4 lc black 

set key box linestyle 4
set key opaque Left

plot "2.1.1(q1).txt" using 1:2:3  notitle with yerrorbars linestyle 1
plot "2.1.1(q2).txt" using 1:2:3  notitle with yerrorbars linestyle 2 
#plot "1.1.1(20).txt" using 2:1:3  notitle with yerrorbars linestyle 3 

plot	3.68*x smooth csplines title "q_{1}" linestyle 1, \
	4.6*x smooth csplines title "q_{2}" linestyle 2
#	2.006*x smooth csplines title "l = 20 см\nk=2.006^+/-0.023 Ом" linestyle 3