py-datalab

This project provides classes for working with data in python. Actually there are two classes: Matrix and Vector.

Prerequisites

Before running this script, make sure you have the following requirements fulfilled:

• Python 3.10 or higher

Installation

To work in your python project you only need to install it via pip:

pip install py-datalab

Usage

The Matrix class represents a matrix and provides various operations and methods to work with matrices. Here are the main features of the Matrix class:

Import

import datalab as dl

Initialization

To create a new matrix, you need to provide the shape (number of rows and columns) and an optional data type. The default data type is int. Here's an example of creating a matrix:

matrix = dl.matrix(3, 3)
matrix = dl.matrix((3, 3), dtype=float)
matrix = dl.matrix([[1, 2, 3], [5, 3], [2, 5, 3]])
# Lib validates shape correctly, regardless of the size of the all lists

vector = dl.vector(4, dtype=float)
vector = dl.vector([1, 2, 3, 4, 5])

Setting and Getting Elements

You can set and get individual elements of the matrix using the square bracket notation. The indices are zero-based.

# Set an element
matrix[0][0] = 1
matrix[0, 0] = 1

vector[1] = 3.0

# Get an element
element = matrix[0][0]
element = matrix[0, 0]

element = vector[1]

Changing Data Type

You can change the data type of the matrix using the change_dtype method. The new data type must be one of the supported types: int, float, str, or bool.

matrix.change_dtype(bool)

# Or make it via property
vector.dtype = int

Change size, and reshaping

You can change the shape of the matrix using the reshape method. It takes a tuple (rows, columns) as the new shape.

matrix.reshape(2, 4)

vector.size = 5

# You can also modify shape using `rows`, `columns` and `size` property
matrix.columns += 1
matrix.rows += 1

vector.size -= 2

Converting to List or Tuple

You can convert the matrix to a nested list or a tuple using the to_list and to_tuple methods, respectively.

matrix_list = matrix.to_list()
matrix_tuple = matrix.to_tuple()

vector_list = vector.to_list()
vector_tuple = vector.to_tuple()

Contributing

Contributions to this project are welcome! If you encounter any issues or have suggestions for improvements, please create an issue or submit a pull request.

License

This project is licensed under the MIT License. Feel free to modify and distribute the code as per the terms of the license.