Reshaping and Stacking | Getting into NumPy Basics
Getting into NumPy Basics

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Getting into NumPy Basics

# Reshaping and Stacking

Reshaping and stacking `NumPy` arrays involve modifying the shape or size of an array or amalgamating multiple arrays into a single array. `NumPy` offers a variety of functions for these purposes, such as:

• `reshape()`: Alters an array to a new shape without changing its data;
• `resize()`: Changes an array's size to a new shape, which can lead to the addition or removal of elements;
• `vstack()`: Vertically stacks arrays (row-wise) to form a single array;
• `hstack()`: Horizontally stacks arrays (column-wise) to create a single array;
• `concatenate()`: Joins arrays along a specified axis;
• `stack()`: Layers arrays along a new axis, adding a dimension.

1. Reshape the `arr` array to a new configuration.
2. Resize the `arr` array to a new dimension, possibly adding or omitting elements.
3. Vertically stack all the arrays to produce a unified array (in the order of creation).
4. Horizontally stack all the arrays to form a single array (in the order of creation).

1. Reshape the `arr` array to a new configuration.
2. Resize the `arr` array to a new dimension, possibly adding or omitting elements.
3. Vertically stack all the arrays to produce a unified array (in the order of creation).
4. Horizontally stack all the arrays to form a single array (in the order of creation).

Everything was clear?

Reshaping and stacking `NumPy` arrays involve modifying the shape or size of an array or amalgamating multiple arrays into a single array. `NumPy` offers a variety of functions for these purposes, such as:

• `reshape()`: Alters an array to a new shape without changing its data;
• `resize()`: Changes an array's size to a new shape, which can lead to the addition or removal of elements;
• `vstack()`: Vertically stacks arrays (row-wise) to form a single array;
• `hstack()`: Horizontally stacks arrays (column-wise) to create a single array;
• `concatenate()`: Joins arrays along a specified axis;
• `stack()`: Layers arrays along a new axis, adding a dimension.

1. Reshape the `arr` array to a new configuration.
2. Resize the `arr` array to a new dimension, possibly adding or omitting elements.