Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (2024)

Updated March 13, 2023

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (1)

Introduction to Matlab 3d scatter plot

3 D scatter plots are used to show the relationship between 3 variables on the cartesian coordinates. 3 D scatter plots are used to interpret the spread of data and identify any outliers. Scatter plots are very useful in data science, where relationships in the test data are used to create algorithms to predict the output. In MATLAB, we use the scatter3() function with 3 arguments to create 3D plots. In this topic, we are going to learn about Matlab 3d scatter plot.

ADVERTIsem*nT Popular Course in this categoryMATLAB - Specialization | 5 Course Series | 3 Mock Tests

Start Your Free Data Science Course

Hadoop, Data Science, Statistics & others

Syntax of the scatter3 function:

  1. scatter3 (a, b, c)
  2. scatter3 (a, b, c, Z)
  3. scatter3 (a, b, c, Z, Y)

Description of the scatter3 function:

  1. scatter3 (a, b, c) is used to create a scatter plot for the input vectors a, b, c. By default, MATLAB scatter plots the data points as circles
  2. scatter3 (a, b, c, Z) is used to create a scatter plot for the input vectors a, b, c with the circles of the size defined by the argument ‘Z.’
  3. scatter3 (a, b, c, Z, Y) is used to create a scatter plot for the input vectors a, b, c with the circles of the size defined by the argument ‘Z’ and color specified by the argument ’Y.’

Examples of Matlab 3d scatter plot.

Let us now understand the code to use the scatter3 function in MATLAB.

Example #1

In this example, we will use the scatter3 function in its most basic form and plot a sine wave and a co-wave with random noise. Below are the steps to be followed:

  1. Define the random noise
  2. Initialize the sin wave
  3. Initialize the cos wave

Code:

c = linspace(0, 2 * pi, 100);
[Initializing the random noise]a = sin(c) + rand(1, 100);
[Initializing the sine wave]b = cos(c) + rand(1, 100);
[Initializing the cos wave]scatter3(a, b, c)
[Using the scatter3 function to plot the input waves]

This is how our input and output will look like in MATLAB:

Input:

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (2)

Output:

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (3)

As we can see in the output, we have obtained a 3D scatter plot for our input waves using the scatter3 function.

Example #2

Next, we will learn how to control the size of the circles in the scatter plot generated using the scatter3 function. For this, we will pass the required size as the 4th argument to the scatter3 function.

Code:

c = linspace(0, 2 * pi, 100);
[Initializing the random noise]a = sin(c) + rand(1, 100);
[Initializing the sine wave]b = cos(c) + rand(1, 100);
[Initializing the cos wave]scatter3(a, b, c, 50)
[Using the scatter3 function to plot the input waves. Please note that we have passed ‘50’ as the 4th argument which defines the size of the circles in the plot]

This is how our input and output will look like in MATLAB:

Input:

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (4)

Output:

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (5)

As we can see in the output, we have obtained a 3D scatter plot for our input waves using the scatter3 function. Also, the size of the circles in the plot is now larger in comparison to the plot in Example 1.

Example #3

In the above two examples, the color of the circles obtained is blue. Let us see how to change this color as per our requirements. In this example, we will plot a logarithmic function and an exponential function with random noise. Below are the steps to be followed:

  1. Define the random noise
  2. Initialize the logarithmic function
  3. Initialize the exponential function

Code:

c = linspace(0, 2 * pi, 100);
[Initializing the random noise]a = log(c) + rand(1, 100);
[Initializing the log function]b = exp(c) + rand(1, 100);
[Initializing the exponential function]scatter3(a, b, c, 50, 'green')
[Using the scatter3 function to plot the input waves. Please note that the argument ‘green’ is used to get the circles of the scatter plot in green color]

This is how our input and output will look like in MATLAB:

Input:

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (6)

Output:

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (7)

As we can see in the output, we have obtained a 3D scatter plot for our input waves using the scatter3 function. Also, the color of the circles is ‘green’, as expected by us.

We can also get the circles of solid nature rather than transparent. For this, we will pass another argument ‘filled’.

Code:

c = linspace(0, 2 * pi, 100);
[Initializing the random noise]a = log(c) + rand(1, 100);
[Initializing the log function]b = exp(c) + rand(1, 100);
[Initializing the exponential function]scatter3(a, b, c, 50, 'green', 'filled')
[Using the scatter3 function to plot the input waves. Please note that the argument ‘filled’ is used to get the circles of the solid nature]

This is how our input and output will look like in MATLAB:

Input:

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (8)

Output:

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (9)

As we can see in the output, we have obtained a 3D scatter plot for our input waves using the scatter3 function. Also, the circles in the plot are of solid nature, as expected by us.

If we want to get the plot in some shape other than the circles, we again pass the required shape as an argument. For example, we can pass ‘star’ as an argument to create the plots using the ‘star’ shape.

Conclusion

  1. The scatter3 function is used in MATLAB to plot 3D scatter plots
  2. These plots are used to draw 3 variables in one plot
  3. We can control the size, shape and other properties of the plotted points using the arguments of the scatter3 function

Recommended Articles

This is a guide to Matlab 3d scatter plot. Here we discuss the Examples of Matlab 3d scatter plot along with the code to use the scatter3 function in MATLAB. You may also have a look at the following articles to learn more –

  1. What is Matlab?
  2. Nyquist Matlab
  3. Plot graph Matlab
  4. Arctan Matlab

ADVERTIsem*nT

SPSS - Specialization | 14 Course Series | 5 Mock Tests 42 of HD Videos 14 Courses Verifiable Certificate of Completion Lifetime Access4.5

ADVERTIsem*nT

MICROSOFT AZURE - Specialization | 15 Course Series | 12 Mock Tests 73 of HD Videos 15 Courses Verifiable Certificate of Completion Lifetime Access4.5

ADVERTIsem*nT

HADOOP - Specialization | 32 Course Series | 4 Mock Tests 170 of HD Videos 32 Courses Verifiable Certificate of Completion Lifetime Access4.5

ADVERTIsem*nT

INFORMATICA - Specialization | 7 Course Series 69 of HD Videos 7 Courses Verifiable Certificate of Completion Lifetime Access4.5
Primary Sidebar

");jQuery('.cal-tbl table').unwrap("

");jQuery("#mobilenav").parent("p").css("margin","0");jQuery("#mobilenav .fa-bars").click(function() {jQuery('.navbar-tog-open-close').toggleClass("leftshift",7000);jQuery("#fix-bar").addClass("showfix-bar");/*jQuery(".content-sidebar-wrap").toggleClass("content-sidebar-wrap-bg");jQuery(".inline-pp-banner").toggleClass("inline-pp-banner-bg");jQuery(".entry-content img").toggleClass("img-op");*/jQuery("#fix-bar").toggle();jQuery(this).toggleClass('fa fa-close fa fa-bars');});jQuery("#mobilenav .fa-close").click(function() {jQuery('.navbar-tog-open-close').toggleClass("leftshift",7000);jQuery("#fix-bar").removeClass("showfix-bar");jQuery("#fix-bar").toggle();jQuery(this).toggleClass('fa fa-bars fa fa-close');/*jQuery(".content-sidebar-wrap").toggleClass("content-sidebar-wrap-bg");jQuery(".inline-pp-banner").toggleClass("inline-pp-banner-bg");jQuery(".entry-content img").toggleClass("img-op");*/});});

Matlab 3d scatter plot | Learn the Examples of Matlab 3d scatter plot (2024)

FAQs

What is a 3 dimensional scatter plot? ›

3D scatter plots are used to plot data points on three axes in the attempt to show the relationship between three variables. Each row in the data table is represented by a marker whose position depends on its values in the columns set on the X, Y, and Z axes.

What is scatter3 in MATLAB? ›

scatter3( pcloud ) plots the input pcloud point cloud as a 3-D scatter plot in the current axes handle. If the data contains RGB information for each point, the scatter plot is colored accordingly. scatter3( pcloud ,Name,Value) provides additional options specified by one or more Name,Value pair arguments.

How do you plot a scatter plot in D3? ›

How to create a scatter plot using D3
  1. Step 1: Dataset. Before even starting to code, we need a data set to base our chart on. ...
  2. Step 2: D3 and SVG container. ...
  3. Step 3: Set margin. ...
  4. Step 4: Set scale. ...
  5. Step 5: Add text. ...
  6. Step 6: Add axis. ...
  7. Step 7: Scatter dots.
Mar 19, 2021

How to plot a 3-D graph? ›

In order to plot 3D figures use matplotlib, we need to import the mplot3d toolkit, which adds the simple 3D plotting capabilities to matplotlib. Once we imported the mplot3d toolkit, we could create 3D axes and add data to the axes. Let's first create a 3D axes.

What is the X Y Z scatter plot? ›

An XYZ class scatter plot is a scatter plot with symbols that mark the intersection of X, Y, and Z column data based on a required fourth value (Class column). Class scatter plots group data into discrete classes (bins). The data points are displayed using the symbol assigned to the class.

What is the point size of scatter3? ›

scatter3(x,y,z) creates a scatter plot with markers at the locations specified by x , y , and z . The default type of the marker is a circle, the default color is "blue" and the default marker size is 36. This means the circle surrounding the marker has an area of 36 points squared.

How to add text in 3D plot MATLAB? ›

To add text to one point, specify x and y as scalars. To add text to multiple points, specify x and y as vectors with equal length. text( x , y , z , txt ) positions the text in 3-D coordinates.

How do you plot a 3-D dot in MATLAB? ›

Use scatter3() to create the 3D scatter plot and scale the colors based on a vector of mean values.
  1. % Create 100x3 matrix of [x,y,z] coordinates.
  2. xyz = randi(1000,100,3);
  3. % Create 100x1 vector of means.
  4. mu = rand(100,1).*5;
  5. % Create 3D scatter plot, colorcode the values based on mu values.
Feb 19, 2020

How to plot 3-D radiation pattern in MATLAB? ›

Use the patternCustom function to plot the field data in 3-D. This function also allows you to view the sliced data. Alternatively, use the polarpattern object to visualize the field data in 2-D polar format.

How to plot 3 variables in one plot? ›

A basic “color plot”" displays the values of three variables at a time using colored symbols, where the value of one variable determines the relative position of the symbol along the X-axis and the value of a second variable determines the relative position of the symbol along the Y-axis, and the value of the third ...

How to make a 3-D array in MATLAB? ›

You can create a multidimensional array by creating a 2-D matrix first, and then extending it. For example, first define a 3-by-3 matrix as the first page in a 3-D array. Now add a second page. To do this, assign another 3-by-3 matrix to the index value 2 in the third dimension.

How to make a 3D model in MATLAB? ›

Accepted Answer

In MATLAB, the patch function can be used to generate a 3D model by specifying the vertices and faces of the object. This function provides a convenient way to plot and visualize 3D objects in MATLAB. patch('Vertices', vertices, 'Faces', faces, 'FaceColor','red');

How to plot a 3-D triangle in MATLAB? ›

trisurf( T , x , y , z ) plots the 3-D triangular surface defined by the points in vectors x , y , and z , and a triangle connectivity matrix T . trisurf( TO ) plots the surface defined by a 3-D triangulation or delaunayTriangulation object.

References

Top Articles
Welcome Section – Free Previews – SapphireFoxx Beyond
Welcome Section – Free Previews
Randolf Spellshine
Social Security Administration Lubbock Reviews
Sarah Coughlan Boobs
Barber Gym Quantico Hours
Gateway Login Georgia Client Id
Dtm Urban Dictionary
Carmax Chevrolet Tahoe
Craigslist 5Th Wheel Campers For Sale
nycsubway.org: The Independent Fleet (1932-1939)
20 of the Funniest Obituaries That Will Have You Dying Laughing
Triple the Potatoes: A Farmer's Guide to Bountiful Harvests
Chris Evert Twitter
Japan’s Dagashi Treats: A Tasty Trip Down Memory Lane – Umami bites
Ktbs Payroll Login
Unveiling The Fascination: Makayla Campinos Video
Lehigh Valley Ironpigs Score
Indian Restaurants In Cape Cod
Prey For The Devil Showtimes Near Amc Ford City 14
Gambler's Phrase Of Defeat
Baycare Intranet
Joshua Efird Net Worth
Tnt Tony Superfantastic
Currently Confined Coles County
The Bold And The Beautiful Soap Hub
Keanu Reeves cements his place in action genre with ‘John Wick: Chapter 4’
Basis Independent Brooklyn
Entourage Yearbook Login
Galen Rupp Net Worth
Xxn Abbreviation List 2023
Lubbock, Texas hotels, motels: rates, availability
Coventry Evening Telegraph Ccfc
Uc Davis Tech Management Minor
Burkes Outlet Credit Card Sign In
Detroit Lions Den Forum
Zuercher Portal Inmates Kershaw County
Nail salons near me in West Hartford. Find a nail shop on Booksy!
Acceltrax Sycamore Services
Ups First And Nees
Register for Classes - Office of the Registrar
Craigslist Free Stuff Columbus Ga
Obituary Sidney Loving
911 Active Calls Caddo
Crandon Skyward
Craigslist Free Stuff Bellingham
Daily Cryptoquip Printable
Pasha Pozdnyakova
German police arrest 25 suspects in plot to overthrow state – DW – 12/07/2022
How to Screenshot on Cash App: A Complete Guide
Pollen Count Butler Pa
ओ कान्हा अब तो मुरली की O Kanha Ab To Murli Ki Lyrics
Latest Posts
Article information

Author: Gregorio Kreiger

Last Updated:

Views: 5299

Rating: 4.7 / 5 (77 voted)

Reviews: 84% of readers found this page helpful

Author information

Name: Gregorio Kreiger

Birthday: 1994-12-18

Address: 89212 Tracey Ramp, Sunside, MT 08453-0951

Phone: +9014805370218

Job: Customer Designer

Hobby: Mountain biking, Orienteering, Hiking, Sewing, Backpacking, Mushroom hunting, Backpacking

Introduction: My name is Gregorio Kreiger, I am a tender, brainy, enthusiastic, combative, agreeable, gentle, gentle person who loves writing and wants to share my knowledge and understanding with you.