BudiBaduQuiziBadu

Matlab Basic Plot Commands Quiz

Matlab
0 Passed
0% acceptance

35 fundamental questions on visualizing data in MATLAB, covering plot creation, customization, annotation, and saving.

35 Questions
~70 minutes
1

Question 1

Which command creates a basic 2D line plot of vector y versus vector x?

A
plot(x, y)
B
line(x, y)
C
graph(x, y)
D
draw(x, y)
2

Question 2

How do you add a title to the current plot?

A
title('My Plot')
B
header('My Plot')
C
label('My Plot')
D
plot.title = 'My Plot'
3

Question 3

Which string specifier produces a red dashed line?

A
'r--'
B
'red-dashed'
C
'r-'
D
'd-r'
4

Question 4

How do you label the x-axis?

A
xlabel('Time')
B
xtitle('Time')
C
labelx('Time')
D
axis('x', 'Time')
5

Question 5

What does the command 'grid on' do?

A
Displays grid lines on the current axes
B
Turns on the power grid simulation
C
Aligns the figure to the screen grid
D
Enables snap-to-grid
6

Question 6

Which command allows you to plot a second line on the existing axes without erasing the first one?

A
hold on
B
keep on
C
plot append
D
overlay on
7

Question 7

How do you save the current figure as a PNG image named 'result.png'?

A
saveas(gcf, 'result.png')
B
save('result.png')
C
export('result.png')
D
print -png result
8

Question 8

What does the specifier 'g:o' mean?

A
Green dotted line with circle markers
B
Grey solid line with no markers
C
Gold line with dot markers
D
Green solid line
9

Question 9

If you call 'plot(y)', what is used for the x-values?

A
Indices from 1 to the length of y
B
Indices from 0 to length-1
C
Random numbers
D
It throws an error
10

Question 10

Which command closes all open figure windows?

A
close all
B
clear all
C
clc
D
exit
11

Question 11

How do you specify a line width of 2 points?

A
plot(x, y, 'LineWidth', 2)
B
plot(x, y, 'Width', 2)
C
plot(x, y, 2)
D
style(x, y, 2)
12

Question 12

What is the color code for black in MATLAB plotting?

A
'k'
B
'b'
C
'bl'
D
'bk'
13

Question 13

How do you create a new, empty figure window?

A
figure
B
newplot
C
window
D
open
14

Question 14

Which command adds a legend to the plot?

A
legend('Label1', 'Label2')
B
key('Label1', 'Label2')
C
map('Label1', 'Label2')
D
names('Label1', 'Label2')
15

Question 15

What does 'axis equal' do?

A
Sets the aspect ratio so that one data unit is the same length in both x and y
B
Makes the x and y limits the same
C
Centers the plot
D
Removes the axes
16

Question 16

How can you plot multiple datasets in a single command?

A
plot(x1, y1, x2, y2)
B
plot([x1, x2], [y1, y2])
C
plot(x1, y1) + plot(x2, y2)
D
multiplot(x1, y1, x2, y2)
17

Question 17

Which function is used to create a grid of subplots within a single figure?

A
subplot(m, n, p)
B
gridplot(m, n, p)
C
multiplot(m, n, p)
D
layout(m, n, p)
18

Question 18

How do you turn on minor grid lines?

A
grid minor
B
grid small
C
minor on
D
grid(2)
19

Question 19

What is the default line style in MATLAB?

A
Solid line ('-')
B
Dashed line ('--')
C
Dotted line (':')
D
No line (markers only)
20

Question 20

Which command sets the range of the x-axis manually?

A
xlim([min, max])
B
xrange([min, max])
C
axis x [min, max]
D
setx([min, max])
21

Question 21

How do you plot discrete data points without connecting lines?

A
plot(x, y, 'o')
B
scatter(x, y)
C
Both A and B
D
plot(x, y, 'none')
22

Question 22

What does 'clf' do?

A
Clears the current figure
B
Clears the command line
C
Closes the figure
D
Clears functions
23

Question 23

How do you change the font size of the title?

A
title('Text', 'FontSize', 14)
B
title('Text', 14)
C
set(title, 14)
D
font('Text', 14)
24

Question 24

Which command is used to export graphics with high resolution suitable for publication?

A
exportgraphics(gcf, 'file.pdf', 'ContentType', 'vector')
B
savehighres('file.pdf')
C
printscreen
D
hdplot('file.pdf')
25

Question 25

What is the marker specifier for a square?

A
's'
B
'sq'
C
'box'
D
'q'
26

Question 26

How do you stop adding to the current plot (release the hold)?

A
hold off
B
hold stop
C
release
D
end hold
27

Question 27

What does 'axis tight' do?

A
Sets the axis limits to the range of the data
B
Removes whitespace around the figure
C
Locks the axes
D
Makes the lines thinner
28

Question 28

Which property controls the color of the line?

A
'Color'
B
'LineColor'
C
'c'
D
'Fill'
29

Question 29

How do you add a text label at specific coordinates (x, y)?

A
text(x, y, 'My Label')
B
label(x, y, 'My Label')
C
annotate(x, y, 'My Label')
D
put(x, y, 'My Label')
30

Question 30

What does 'yyaxis right' do?

A
Activates a second y-axis on the right side
B
Moves the y-axis to the right
C
Rotates the plot
D
Plots only positive y values
31

Question 31

How do you make the axes box complete (lines on top and right)?

A
box on
B
axis box
C
border on
D
frame on
32

Question 32

What is the result of 'plot(x, y, 'LineWidth', 3, 'Color', [0 0.5 0])'?

A
A thick dark green line
B
A thin red line
C
Error
D
A dotted blue line
33

Question 33

Which command allows you to click on the plot to get coordinates?

A
ginput
B
getcoords
C
click
D
input
34

Question 34

How do you create a logarithmic scale on the x-axis?

A
set(gca, 'XScale', 'log')
B
semilogx(x, y)
C
Both A and B
D
logx(x, y)
35

Question 35

What does 'gca' stand for?

A
Get Current Axes
B
Get Current Array
C
Global Coordinate Axis
D
Graphic Control Area

Other Quiz Categories

JavaScript
47 quizzes
Basics
Variables & Data Types
Operators & Expressions
Rust
30 quizzes
Cargo and Project Setup
Variables and Mutability
Data Types
Python
29 quizzes
Introduction & Core Fundamentals
Data Types Overview
Type Casting
Golang
29 quizzes
Basics & Syntax
Data Types & Zero Values
Operators & Expressions
C++
26 quizzes
Basics
Variables & Data Types
Operators & Expression
Java
22 quizzes
Java Basics & JVM Fundamentals
Variables, Data Types & Type Casting
Operators & Expressions
TypeScript
19 quizzes
Introduction and Overview
Installation and Configuration
Basic Types and Type Annotations
SQL Database
15 quizzes
Foundations and Basics
Basic Query Selection
Filter, Sort, and Alias Essentials
PHP
15 quizzes
Syntax Building Blocks
Variable Naming
Data Types Overview
Linked List
11 quizzes
Introduction
Node Structure and Pointer Fundamentals
Singly Linked List

QUIZZES IN Matlab

1

Basics & Environment

40

40 comprehensive questions on MATLAB's fundamental environment and core concepts, covering command window operations, workspace management, file system navigation, script execution, path configuration, and help system utilization — with 16 code examples to master MATLAB's interactive development environment.

2

Variables and Data Type

40

40 comprehensive questions on MATLAB's variable system and data types, covering variable creation, naming conventions, numeric types, logical values, character and string data, and inspection functions — with 16 code examples to master MATLAB's type system and variable management.

3

Arrays and Matric

40

40 comprehensive questions on MATLAB's array and matrix operations, covering matrix creation, indexing techniques, slicing operations, concatenation methods, colon operator usage, and linear algebra fundamentals — with 16 code examples to master MATLAB's matrix computing capabilities.

4

Script and Function

40

40 comprehensive questions on MATLAB script files and function programming, covering .m file structure, input/output parameters, variable scope management, anonymous function creation, and documentation techniques — with 16 code examples to master MATLAB's functional programming capabilities.

5

Operator and Expression

40

40 comprehensive questions on MATLAB's operators and expressions, covering arithmetic operations, logical comparisons, relational testing, precedence rules, and element-wise computations — with 16 code examples to master MATLAB's expression evaluation capabilities.

6

Control Flow Matlab

40

40 comprehensive questions on MATLAB's control flow structures, covering conditional statements, loops, and flow control mechanisms — with 16 code examples to master MATLAB's cpp quiz programming logic and decision-making capabilities.

7

Plotting and Visualization

40

40 comprehensive questions on MATLAB's plotting and visualization capabilities, covering 2D/3D plots, legends, labels, titles, subplots, and figure saving techniques — with 16 code examples to master MATLAB's cpp quiz data visualization tools.

8

Built-in Functions

40

40 comprehensive questions on MATLAB's built-in functions covering mathematical operations, statistical computations, NaN/Inf handling, and data validation functions — with 16 code examples to master MATLAB's cpp quiz computational capabilities.

9

Strings and Text Processing

40

40 comprehensive questions on MATLAB's string and text processing capabilities covering string vs char arrays, concatenation, string functions, pattern matching, and text parsing techniques — with 16 code examples to master MATLAB's cpp quiz text manipulation tools.

10

Cell Arrays

40

40 comprehensive questions on MATLAB's cell arrays covering creation, indexing techniques, mixed-type data storage, and useful cell functions — with 16 code examples to master MATLAB's cpp quiz flexible data structures.

11

Structure & Table

40

40 comprehensive questions on MATLAB's structure and table data types covering struct fields, nested structures, table creation, row/column access, and table operations — with 16 code examples to master MATLAB's cpp quiz structured data capabilities.

12

File I/O & Data Importing

40

40 comprehensive questions on MATLAB's file input/output operations, covering data import/export with readtable and writematrix, handling CSV and Excel files, managing .mat files, and navigating file systems — with 12 code examples to solidify your data handling skills.

13

Logical Indexing & Masking

35

Master MATLAB's powerful logical indexing techniques with 35 questions covering boolean masks, conditional filtering, find(), and array manipulation without loops.

14

Vectorization & Performance Optimization

40

40 high-impact questions on speeding up MATLAB code using vectorization, element-wise operations, preallocation, and profiling tools like tic/toc.

15

Basic Math Operations

35

35 essential questions covering MATLAB's core arithmetic, order of operations, and fundamental mathematical functions.

16

Creating and Using Vectors

35

35 fundamental questions on creating, indexing, and manipulating row and column vectors in MATLAB.

17

Functions

35

35 essential questions on using built-in functions, understanding inputs/outputs, accessing documentation, and creating anonymous functions.

18

Basic Plot Commands

35

35 fundamental questions on visualizing data in MATLAB, covering plot creation, customization, annotation, and saving.

19

Input & Output

35

35 practical questions on interacting with users via the command window, including input, disp, and formatted output with fprintf.

20

Relational & Logical Operations

40

40 questions on MATLAB's comparison and logical operators, covering equality, inequality, boolean logic, and common pitfalls.

21

Arrays vs. Matrices

35

35 questions exploring the core data structures in MATLAB, focusing on dimensionality, indexing, and manipulation techniques.