Module 7: Data Visualization and Presentation with NumPy and Matplotlib

Question 1

Use ________ to write papers containing ___________ python code including figures, plots, animations, etc.

Answer 1

jupyter
executable

Question 2

NumPy is a _______ so must be _______ and is good practice to ________ it.

Answer 2

module
imported
rename

Question 3

To import and rename a module use format __________________.

Answer 3

import module as name

Question 4

NumPy works with ________, and type is __________. Can be created from a list[float] using __________ function.

Answer 4

arrays
np.ndarray
np.array()

Question 5

An np.ndarray _______ contain a mix of values.

Answer 5

can

Question 6

np.ndarray values are _________ or ________.

Answer 6

componentwise
item by item

Question 7

Cannot use range for NumPy, instead use function _________ with format __________.

Answer 7

np.linspace
linspace(start, stop, count)

Question 8

np.linspace by default ___________ endpoint. Can change this using flag endpoint=______

Answer 8

includes
False

Question 9

NumPy library has _________ of the _______ functions that work on arrays with format ________.

Answer 9

vectorized versions
math
ex. np.pi

Question 10

If a function doesnt do only vector stuff use ___________ which takes a callable and returns a new callable that works well with np.ndarray

Answer 10

np.vectorize

Question 11

Use _________ with a pair of equal sized iterables (lists or arrays) to plot lines or points.

Answer 11

plt.plot

Question 11

Use ___________ to plot points with controllable sizes.

Answer 11

plt.scatter(x, y, s=sizes)

Question 12

Multiple plots can occur on the same figure by calling _________.

Answer 12

plt functions repeatedly

Question 13

A new blank plot is started using ___________.

Answer 13

plt.figure()

Question 14

____________ means programmers can the mathematical operators can be redefined.

Answer 14

operator overloading

Question 15

in NumPy operators are rewritten to be __________ so an operation on arrays of equal size creates a new array of the same size where each item is the result of applying the operator to the corresponding values in the two arrays.

Answer 15

elementwise

Question 16

in np operations _______ be done between an array and a single number.

Answer 16

can

Question 17

Subtraction of lists is _________.

Answer 17

not defined

Question 18

Pyplot must be imported using _______________.

Answer 18

import mathplotlib.pyplot as plt