Gnuplot/C2/Example-scripts-and-demo-folder/English
From Script | Spoken-Tutorial
[Title of script: Template:Anchor Example Scripts and demo folder
Author: Rani Parvathy
Keywords: gnuplot, video tutorial, spoken tutorial, installation, set term, demo folder, example files, styles, scripts, script structure.
Visual Cue | Narration |
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Slide Number 1
Title Slide Example Scripts and demo folder
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Welcome to the tutorial on Example Scripts and demo folder |
Slide Number 2
Learning Objectives
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In this tutorial, we will
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Slide Number 3
System and Software Requirement
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To record this tutorial, I am using
Debian Linux
gedit 3.22.0
and
Firefox web browser 52.5.0
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Slide Number 4
Samson Microphone
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To record audio, I am using Samson USB portable microphone was used.
The model number SAGOMIC
I bought it from amazon website, for about rupees four thousand
It may be available in other websites also.
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Slide Number 5
Pre-requisites
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To follow this tutorial, learner's must be familiar with,
Basic computer and internet skills
And have Concept of graph, Mathematics knowledge
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Slide Number 6
Pre-requisites
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Please locate this tutorial on our web page, spoken hyphen tutorial dot org
Prerequisite spoken tutorials, if any, will be mentioned in this page
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Slide Number 7
Download link
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Download link for gnuplot example files is gnuplot dot info
Example Script files are downloaded in the tar ball
They get extracted to the demo folder
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Press ctrl, alt t keys together. | First, open a terminal, by pressing control, alt, t keys together on keyboard. |
A terminal opens. | |
I have downloaded and extracted gnuplot files. | |
The example files are in the demo folder of the extracted tar ball.
Change directory to the demo directory of the extracted tar ball.
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cd ~/Downloads/gnuplot-5.2.5/demo | Enter command, as seen on the screen to change the directory.
Learners must change directory to the demo folder in their computer.
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Now working directory change, to demo folder. | |
There is a chance your computer does not have the demo files. | |
If so, pause the video and download them from gnuplot website.
Extract the demo directory from the downloaded tar ball file.
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>ls | Enter command ls to list the files. |
Notice, several files with dot dem extension. | |
They are simple text scripts, which are used to generate plots | |
Ctrl - l | I will also clear the screen for clarity in video with control l command. |
Demonstration files are short scripts that plot graphs
Let's look at their structure now.
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Type gedit simple.dem and press enter | Type gedit simple dot dem and press enter |
The script file opens in gedit
Windows users may open the file in notepad, to study the structure of script
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Point to header details. | Details about this plot is mentioned in the header.
The required data files is mentioned
Details on this plot is also mentioned in the header.
This script plots three functions together.
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Hover mouse next to left and right key in script | Scroll down and notice that left and right arrow keys are also assigned |
Close gedit | Now we have seen a script structure.
Close gedit by clicking on 'x' sign
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Next, let's run them in gnuplot and generate the plot. | |
>qt
Press enter
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Set terminal to qt. |
>gnuplot
Press enter
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In terminal prompt, type gnuplot and press enter to open gnuplot.
The prompt changes to gnuplot prompt.
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To execute a command in terminal, press enter.
I will not mention it separately.
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Ctrl + l | I will clear the screen and bring prompt to top of the terminal for clarity.
Press control l on keyboard
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>load space 'simple.dem' | To load a script, enter command as seen.
We will run simple dot dem script.
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Hover mouse next to Sin(x), atan(x) and cos(atan(x)) | This runs the script. A graphical window opens.
Three functions, sin x, atan x and cos atan x are plotted.
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The assigned arrow keys allow the user to scroll further in the axis limits. | |
Hover mouse next to “press enter to continue” and press enter | Now, follow prompt and press enter to continue in terminal |
Show the change in graphics window | Then next script and it's function gets plotted. |
Press enter again, as shown in prompt to plot the functions from script. | |
You may pause the video and scroll over more demonstration files. | |
I will now close the graphical window | |
We can also enter the commands sequentially in the terminal to generate plot.
Press control c to come back to gnuplot prompt.
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Press q | Enter command, q or control c to exit gnuplot |
Many example scripts are available online for gnuplot
First open a web browser.
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I will show how to access the examples files online in the next step. | |
Open web browser.
Go to, gnuplot.sourceforge.net/demo
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I will open firefox web browser.
Go to, web address gnuplot dot sourceforge dot net backslash demo
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Notice the several demos and scripts for users to learn from. | |
2D and 3D graphs, histograms and curve fitting are few capabilities software. | |
Click on Simple functions | Click on the Simple functions link |
Left side shows graphical plots.
The simple scripts on right side, generate the plots.
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Scroll down the page and notice the various styles in plots on the left side. | |
Notice the variations in symbols, color, legends, line style and filling area. | |
Learners may use this page to learn the various commands and options | |
Slide Number 8
Summary
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Now let's summarize.
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Slide Number 9
Assignment
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For assignment activity, please do the following
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Slide Number 10
Spoken Tutorial Project
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This video summarises the Spoken Tutorial Project
If you do not have good bandwidth, you may download and watch it.
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Slide Number 11
Spoken Tutorial workshops
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The Spoken Tutorial Project Team * conducts workshops using spoken tutorials and
For more details, please write to us. |
Slide Number 12
Forum for specific questions:
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Post your timed queries in the forum. |
Slide Number 13
Acknowledgement |
Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.
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This is Rani from IIT, Bombay. Thank you for joining. |