Video Converter
Audio Converter
Image Converter
PDF Converter
File Compressor
introduction to gnuplot

Introduction to Gnuplot Bob Dowling University Computing Service - PowerPoint PPT Presentation

Aug 20, 2023 •338 likes •1.13k views

Introduction to Gnuplot Bob Dowling University Computing Service Course aims Simple graphs 2D Plotting data Scripted process No manual work What the course won't cover Gnuplot can Gnuplot can't 3D plots Manual

  1. Introduction to Gnuplot Bob Dowling University Computing Service

  2. Course aims ● Simple graphs ● 2D ● Plotting data ● Scripted process ● No manual work

  3. What the course won't cover Gnuplot can Gnuplot can't ● 3D plots ● Manual artistry ● Plotting functions ● Polar graphs ● Histograms

  4. What the course will cover ● Course contents 1.Introduction ● Command line 2.Part one ● Viewing tool 3.Break – eog 4.Part two – “Eye of Gnome” 5.Questions

  5. What the course will cover ● Driving Gnuplot 1.Introduction ● Basic settings 2.Part one ● Size 3.Break ● Ranges of values 4.Part two ● Tick marks 5.Questions

  6. What the course will cover ● Multiple graphs 1.Introduction ● Colours 2.Part one ● Labels 3.Break ● Frills 4.Part two 5.Questions

  7. What the course will cover 1.Introduction 2.Part one 3.Break 4.Part two 5.Questions

  8. Terminal ● Command line ● Gnome terminal ● Applications menu

  9. Set up some files ● “Playground” ● Input files ● Gnuplot files ● Output files > /ux/Lessons/Gnuplot/setup Directory /home/ y500 /gnuplot created. > cd ~/gnuplot

  10. Test you can display graphics > eog example01.png Select image window Close or Control-Q

  11. Interactive use of Gnuplot ● Run interactively > gnuplot ● Direct commands G N U P L O T ● Built-in help Version 4.0 … – Not very helpful Terminal type set to 'x11' ● X11 graphics gnuplot> plot "cubic.dat" … gnuplot> quit >

  12. Batch use of Gnuplot ● File of commands > more cubic.gplt ● cubic.gplt plot "cubic.dat" ● Don't need a “quit” ● Just need end of file > gnuplot cubic.dat ● “Flash” of graph >

  13. Change output file format ● Want PNG > more cubic.gplt – P ortable N etwork set terminal png G raphics set output "cubic.png" ● Gnuplot “terminal”: plot "cubic.dat" set terminal png ● Want a file: set output "cubic.png" > gnuplot cubic.gplt ● File names in quotes > eog cubic.png ● Before the plot

  14. A look at the output ● 640×480 pixels ● Series of crosses ● Graph range = data range ● “Ticks” every 0.5 ● No zero axes ● No labels ● Key uses file name ● Red

  15. Problems with the shape Problems: ● Image file 640×480 ● Graph isn't square Want to set: ● Image dimensions ● Graph aspect ratio

  16. Gnuplot commands Image dimensions: set terminal png picsize X Y Image size in pixels

  17. Gnuplot commands Graph aspect ratio: set size ratio - r set size ratio r Graph's aspect ratio Units' aspect ratio e.g. set size ratio +1: e.g. set size ratio - 1:

  18. Next version of graph set terminal png picsize 512 512 set output "cubic.png" set size ratio -1.0 plot "cubic.dat"

  19. Problems with the curve Problem: ● Set of crosses Want to have: ● Set of line segments

  20. Gnuplot commands Curve made of points: set style data points ● “points” may be crosses or other marks Curve made of line segments: set style data lines Curve made of true dots: set style data dots

  21. Next version of graph set terminal png picsize 512 512 set output "cubic.png" set size ratio -1.0 set style data lines plot "cubic.dat"

  22. Problems with the range Problem: ● Graph range = Data range ● [-1.0,+1.0]×[-1.0,+1.0] Want to have: ● Manual setting ● [-1.5,+1.5]×[-1.5,+1.5]

  23. Gnuplot commands Setting range explicitly: set xrange [-1.5:1.5] set yrange [-1.5:1.5] Partial specification: set xrange [*:1.5] data minimum to 1.5 set yrange [-1.5:*] -1.5 to data maximum

  24. Next version of graph … set size ratio -1.0 set style data lines set xrange [-1.5:1.5] set yrange [-1.5:1.5] plot "cubic.dat"

  25. Problems with the graph Problem: ● Ticks every 0.5 ● Ticks from -1.5 to 1.5 Want to have: ● Ticks every 0.25 ● Ticks from -1.0 to 1.0

  26. Gnuplot commands Setting just the tick interval set xtics 0.25 set ytics 0.25 Setting the interval and range set xtics -1.0,0.25,1.0 set ytics -1.0,0.25,1.0

  27. Next version of graph … set xrange [-1.5:1.5] set yrange [-1.5:1.5] set xtics -1.0,0.25,1.0 set ytics -1.0,0.25,1.0 plot "cubic.dat"

  28. Problems with the graph Problem: ● No sub-ticks Want to have: ● Sub-ticks every 0.05 ● 5 sub-ticks to the tick

  29. Gnuplot commands “Minor ticks” ● Number of minor ticks for each major tick set mxtics 5 set mytics 5

  30. Next version of graph … set xtics -1.0,0.25,1.0 set ytics -1.0,0.25,1.0 set mxtics 5 set mytics 5 plot "cubic.dat"

  31. Problems with the graph Problem: ● No axes Want to have: ● Proper axes ● Running through (0,0)

  32. Gnuplot commands Axes through the origin: ● A “zero axis” ● Defaults to being in grey ● Will consider colours later set zeroaxis or set xzeroaxis set yzeroaxis

  33. Next version of graph … set mxtics 5 set mytics 5 set zeroaxis plot "cubic.dat"

  34. Problems with the graph Problem: ● Key in top right ● Key uses file name Want to have: ● Key in top left ● Manually specified key

  35. Gnuplot commands Location of key: ● Only the corners are available set key top left set key bottom right unset key

  36. Gnuplot commands Text for key: ● Option on plot ● “Title” of the data not the whole graph plot "cubic.dat" title "cubes" plot "cubic.dat" notitle

  37. Next version of graph … set xzeroaxis set yzeroaxis set key top left plot "cubic.dat" title "cubes"

  38. Half time exercise ● Fifteen minutes ● Create the graph ● Then have a break lissajou1.dat + lissajou1.gplt  lissajou1.png

  39. Welcome back ● lissajou1.gplt ● Any questions?

  40. Second half ● Introduction ● Multiple graphs ● Part one ● Colours ● Break ● Labels ● Part two ● Titles ● Questions

  41. Compound graph ● Single graph ● Several lines ● Single input file – Several columns ● Multiple input files – Two columns each

  42. Data file # x, x^3, x^5, x^7 -1.000000 -1.000000 -1.000000 -1.000000 -0.990000 -0.970299 -0.950990 -0.932065 … 0.990000 0.970299 0.950990 0.932065 1.000000 1.000000 1.000000 1.000000

  43. Properties of the data file # x, x^3, x^5, x^7 -1.000000 -1.000000 -1.000000 -1.000000 -0.990000 -0.970299 -0.950990 -0.932065 … ● “#” introduces a comment line ● Ignored by Gnuplot ● Columns separated by whitespace

  44. Gnuplot commands ● Extend the plot command ● Specify the columns to use ● Specify the data files to use ● Comma between curve definitions ● Continue lines with a backslash plot "powers.dat" using 1:2, \ "powers.dat" using 1:3, \ "powers.dat" using 1:4

  45. Problems with the graph Problem: ● Key is very ugly Want to have: ● Our line names

  46. Gnuplot commands ● Same extension of the plot command ● Once per curve in the graph plot "powers.dat" using 1:2 title "x^3", \ "powers.dat" using 1:3 title "x^5", \ "powers.dat" using 1:4 title "x^7"

  47. Next version of graph plot \ "powers.dat" using 1:2 \ title "x^3" , \ "powers.dat" using 1:3 \ title "x^5" , \ "powers.dat" using 1:4 \ title "x^7"

  48. Don't have to use column 1 plot "powers.dat" \ using 4:2 \ title "x^(3/7)"

  49. Problems with graph Problems with graph: ● Curve colours ● Red, Green, Blue Want to have: ● Our curve colours ● Red, Purple, Blue

  50. Colours we have seen so far ● Background (white) ● Borders (black) ● Axes (grey) ● Curve one (red) ● Curve two (green) ● Curve three (blue)

  51. How Gnuplot uses colours ● Numbered colours for particular purposes ● Maximum of 256 colours Purpose Number Default colour Background 0 White Borders 1 Black Axes 2 Grey First curve 3 Red Second curve 4 Green

  52. Gnuplot commands ● Extension to set terminal ● List colours at end of command ● Hexadecimal specification: xrrggbb set terminal png picsize 512 512 \ xffffff x000000 x404040 \ xff0000 x800080 x0000ff

  53. A few colours green black x00ff00 x000000 turquoise x00ffff x404040 blue grey x0000ff x808080 magenta xff00ff xc0c0c0 red white xff0000 xffffff

  54. Next version of graph set terminal png \ picsize 512 512 \ xffffff x000000 x404040 \ xff0000 xff00ff x0000ff …

  55. Problems with graph Problems with graph: ● No axis labels ● No main title Want to have: ● Axis labels ● Main title

  56. Gnuplot commands Setting main title: set title "Powers" ● Do not confuse with plot … title "x^3"

  57. Gnuplot commands Setting axis labels: set xlabel "x" set ylabel "power of x"

  58. Next version of graph … set title "Powers" set xlabel "x" set ylabel "powers of x" plot "powers.dat"…

  59. Problems with graph Problems with graph: ● Surround border Want to have: ● Left border ● Bottom border

  60. Gnuplot commands Border edges: N = 1+2+4+8 1 bottom set border N 2 left 4 top 8 right

Recommend

Maxiplot: Maxima and Gnuplot in L A T EX. September 21, 2013 1 Introduction For those who do

Maxiplot: Maxima and Gnuplot in L A T EX. September 21, 2013 1 Introduction For those who do

Maxiplot: Maxima and Gnuplot in L A T EX. September 21, 2013 1 Introduction For those who do not know Maxima , it is a symbolic calculation program which can be used to compute derivatives and integrals, solve equations, find limits, work with

457 views • 9 slides
GNUPLOT It's a command line driven plotting program It can plot 2D, 3D plots of functions,

GNUPLOT It's a command line driven plotting program It can plot 2D, 3D plots of functions,

GNUPLOT It's a command line driven plotting program It can plot 2D, 3D plots of functions, data and data fit It's plotting engine can be used by third party applications Completely open source and under active development since

666 views • 14 slides
Designing accessible applications Samuel Thibault Slides & stuff on

Designing accessible applications Samuel Thibault Slides & stuff on

Designing accessible applications Samuel Thibault Slides & stuff on http://brl.thefreecat.org/ http://liberte0.org/ 1 Gnuplot Color blindness: 8% male, 0.5% female 4 Gnuplot 5!!

703 views • 35 slides
Plots in L A T EX: Gnuplot , Octave , make Boris Veytsman Leyla Akhmadeeva TUG2013

Plots in L A T EX: Gnuplot , Octave , make Boris Veytsman Leyla Akhmadeeva TUG2013

Plots in L A T EX: Gnuplot , Octave , make Boris Veytsman Leyla Akhmadeeva TUG2013 Systems Biology School & Computational Materials Science Center, MS 6A2, George Mason University, Fairfax, VA, 22030, USA Bashkir State Medical

656 views • 51 slides
Introduction About Flow Unix Beginning Analysis Basic SiLK Tools rwfilter Printing and

Introduction About Flow Unix Beginning Analysis Basic SiLK Tools rwfilter Printing and

Introduction About Flow Unix Beginning Analysis Basic SiLK Tools rwfilter Printing and Sorting Tools Counting Tools Other Tools Advanced Sets Bags Prefix Maps Unix Scripting Visualization Basic Graphs Excel Gnuplot Advanced

1.8k views • 140 slides
INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION

INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION

TRAINING COURSE ON SOCIAL PROTECTION & FORMALIZATION TRINIDAD AND TOBAGO MARCH 15, 2017 INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION Design of the NIS Assistance from the

553 views • 23 slides
Introduction ATV Introduction A T V Introduction A lphabet T V Introduction A lphabet

Introduction ATV Introduction A T V Introduction A lphabet T V Introduction A lphabet

Introduction ATV Introduction A T V Introduction A lphabet T V Introduction A lphabet T ranslation Theory V Introduction A lphabet T ranslation Theory ocabulary V A lphabet A lphabet lphabet A lphabet A lphabet bet A

1.83k views • 136 slides
Brief Brief Introduction Introduction Brief Brief Introduction Introduction Zhengzhou

Brief Brief Introduction Introduction Brief Brief Introduction Introduction Zhengzhou

Brief Brief Introduction Introduction Brief Brief Introduction Introduction Zhengzhou Zhengzhou Zhengzhou Zhengzhou Z Z Z Zhong hongding hong hong ding ding ding Heavy Heavy Heavy Heavy Duty Duty Duty Duty Machine Machine

627 views • 59 slides
Brief Brief Introduction Introduction Brief Brief Introduction Introduction Zhengzhou

Brief Brief Introduction Introduction Brief Brief Introduction Introduction Zhengzhou

Brief Brief Introduction Introduction Brief Brief Introduction Introduction Zhengzhou Zhengzhou Zhengzhou Zhengzhou Z Z Z Zhong hongding hong hong ding ding ding Heavy Heavy Heavy Heavy Duty Duty Duty Duty Machine Machine

545 views • 5 slides
Shenzhen Cuilu jewelry Co., Ltd was founded in 1996 and its a large private enterprise

Shenzhen Cuilu jewelry Co., Ltd was founded in 1996 and its a large private enterprise

Introduction Introduction - - Brief Brief Introduction Introduction of of Cuilu Cuilu Group Group Introduction Introduction - - Brief Brief Introduction Introduction of of Cuilu Cuilu Group Group Shenzhen Cuilu jewelry Co., Ltd

153 views • 14 slides
Introduction to Machine Learning Introduction to Machine Learning Introduction to Machine

Introduction to Machine Learning Introduction to Machine Learning Introduction to Machine

Introduction to Machine Learning Introduction to Machine Learning Introduction to Machine Learning Introduction to Machine Learning Introduction to Machine Learning Rob Schapire Princeton University www.cs.princeton.edu/ schapire Machine

1.26k views • 38 slides
Spectrum Painting Richard Shipman MW0RCZ ADARS 6th Jan 2020 Introduction Introduction

Spectrum Painting Richard Shipman MW0RCZ ADARS 6th Jan 2020 Introduction Introduction

Spectrum Painting Richard Shipman MW0RCZ ADARS 6th Jan 2020 Introduction Introduction Methods Results Discussion Introduction Introduction Methods Results Discussion Introduction Introduction Methods Results Discussion

490 views • 23 slides
Introduction Introduction Introduction Introduction Outline Motivation Failures

Introduction Introduction Introduction Introduction Outline Motivation Failures

Introduction Introduction Introduction Introduction Outline Motivation Failures Definition and concepts Process and product properties Principles SE Approaches Motivation Software and the economy The economies of

1.04k views • 49 slides
Introduction Introduction Introduction Nationwide Cause for Concern 1

Introduction Introduction Introduction Nationwide Cause for Concern 1

Introduction Introduction Introduction Nationwide Cause for Concern 1 https://www.cdc.gov/std/stats17/infographic.htm Introduction Epidemiology in Western Colorado CPHE Surveillance Data Report, May 2018 Chlamydia Epidemiology in Western

979 views • 39 slides
Team Introduction Experiments Outreach Problem Project Brainstorm Introduction Introduction

Team Introduction Experiments Outreach Problem Project Brainstorm Introduction Introduction

Team Introduction Experiments Outreach Problem Project Brainstorm Introduction Introduction Experiments Experiments Outreach Outreach Problem Prevention of diseases Big pandemics Is it enough? Introduction Experiments

789 views • 29 slides
Lecture 1 Andreas Habegger Introduction Zynq Introduction Zynq Introduction Zynq PS vs. PL

Lecture 1 Andreas Habegger Introduction Zynq Introduction Zynq Introduction Zynq PS vs. PL

Introduction Zynq Lecture 1 Andreas Habegger Introduction Zynq Introduction Zynq Introduction Zynq PS vs. PL Processing System Processor Peripherals Data Buses AXI Bus Conclusion BTE5380 - Embedded Systems Octobre 2014 Andreas Habegger

1.81k views • 30 slides
Improved Method of Cell Placement with Symmetry Constraints for Analog IC Layout Design Shinichi

Improved Method of Cell Placement with Symmetry Constraints for Analog IC Layout Design Shinichi

Improved Method of Cell Placement with Symmetry Constraints for Analog IC Layout Design Shinichi Koda, Chikaaki Kodama and Kunihiro Fujiyoshi Department of Electrical and Electronic Engineering Tokyo University of Agriculture &

700 views • 46 slides
Dimensionality Reduction INFO-4604, Applied Machine Learning University of Colorado Boulder

Dimensionality Reduction INFO-4604, Applied Machine Learning University of Colorado Boulder

Dimensionality Reduction INFO-4604, Applied Machine Learning University of Colorado Boulder October 25, 2018 Prof. Michael Paul Dimensionality The dimensionality of data is the number of variables Usually this refers to the number of input

438 views • 42 slides
WalkCompass: I am a Smartphone and I can Tell my Users Walking Direction MobiSys 2014,

WalkCompass: I am a Smartphone and I can Tell my Users Walking Direction MobiSys 2014,

WalkCompass: I am a Smartphone and I can Tell my Users Walking Direction MobiSys 2014, Bretton Woods, NH Nirupam Roy He Wang Romit Roy Choudhury ! ! Indoor Localization: Chasing Accuracy Location Accuracy 2 Meter 50 Centimeter 3 Meter

537 views • 52 slides
Single Subject Designs ScWk 240 Week 8 Slides 1 Group vs. Single Subject Designs There are two

Single Subject Designs ScWk 240 Week 8 Slides 1 Group vs. Single Subject Designs There are two

Single Subject Designs ScWk 240 Week 8 Slides 1 Group vs. Single Subject Designs There are two broadly defined approaches to experimental research: group designs & single-subject designs Both approaches apply components of the scientific

351 views • 24 slides
Three-Dimensional Biomechanical Analysis of Human Movement Motion Data Anthropometric Force

Three-Dimensional Biomechanical Analysis of Human Movement Motion Data Anthropometric Force

Three-Dimensional Biomechanical Analysis of Human Movement Motion Data Anthropometric Force Platform Acquisition Measurements Marker 3-D Ground Body Mass & Height Positions Reaction Forces and Moments Biomechanical Model 3-D

1.2k views • 45 slides
Changing plot style and color IN TRODUCTION TO S EABORN Erin Case Data Scientist Why

Changing plot style and color IN TRODUCTION TO S EABORN Erin Case Data Scientist Why

Changing plot style and color IN TRODUCTION TO S EABORN Erin Case Data Scientist Why customize? Reasons to change style: Personal preference Improve readability Guide interpretation INTRODUCTION TO SEABORN Changing the gure style

763 views • 54 slides
Perry Watts, Stakana Analytics Elkins Park, PA Nate Derby, Stakana Analytics, Seattle, WA The

Perry Watts, Stakana Analytics Elkins Park, PA Nate Derby, Stakana Analytics, Seattle, WA The

Perry Watts, Stakana Analytics Elkins Park, PA Nate Derby, Stakana Analytics, Seattle, WA The Challenge An Effective Graph Is one that reveals " patterns , differences and uncertainty " in the underlying data. But What if your data

661 views • 46 slides
Frictionless slides type RT TPA Motion USA Distributor: 800-284-9784 https:\\www.tpa-us.com

Frictionless slides type RT TPA Motion USA Distributor: 800-284-9784 https:\\www.tpa-us.com

Frictionless slides type RT TPA Motion USA Distributor: 800-284-9784 https:\\www.tpa-us.com TECHNISCHE DATEN ASSEMBLY The mounting holes of each type are drilled to a standard confjguration in slide-top and -base and permit the user a quick

556 views • 11 slides

More recommend

Explore More Topics

Stay informed with curated content and fresh updates.

animals pets art culture automotive transportation business finance computer internet construction architecture education-career electronics communication

Logo Sambuz

Unleash a World of Digital Possibilities—Browse, Share, and Explore Content Without Boundaries

Useful Links

About Us Privacy Services FAQ's Contact

Newsletter

Stay Informed & Inspired—Subscribe for the Latest Updates, Tips, and Exclusive Content Directly to Your Inbox.

Mail Us

mail@sambuz.com

2026 SAMBUZ, All right reserved.