Gnuplot for Research

This post shows you how to plot using gnuplot for producing/creating graphs. Usually these graphs are used to publish in papers like journals/conferences.
Gnuplot tutorial on handling data files.

Gnuplot 

Installation of gnuplot 

$] sudo apt install gnuplot

Two files for plotting a graph in gnuplot 

File1: mydata.txt 
1 34.5 45 12000
2 36.4 34 24000
3 38.7 22 34000
4 32.3 18 43000
5 41.5 24 23456
6 35.6 36 12345
7 24.5 67 67987
8 56.7 54 45678
9 62.3 27 32123
10 65.4 33 8999

File2: mygnucode.plt

set terminal pdf

set output "pradeep.pdf"

set title "Drivers Data"

set xlabel "Number of Days"

set ylabel "Drivers Info"

plot "mydata.txt" using 1:2 with impulse title "Speed km/hr" lw 

2,"mydata.txt" using 1:3 with points title "Age" lw 2



set terminal png size 600,400

set output "salary.png"

set title "Drivers Data"

set xlabel "Number of Driver"

set ylabel "Drivers Salary"

plot "mydata.txt" using 1:4 with linespoints title "Salary in Rs." 

lw 2, 20000 title "Minimum Salary"


Please see the following video for step by step instructions. 
Gnuplot Tutorial - Research


Gnuplot video is successful to plot 2d graphs. 

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