How to convert array to binary?

Let’s learn about how to convert array to binary using Numpy Python library.

Using the tofile method

Numpy Python library provides a way to convert arrays to binary files. This can be useful for storing arrays on disk or for transferring them between computers.

Having an array created you can save it as an binary file using tofile setting bin as your file extension.

The `tofile()` method can be used to save an array to a binary file. The syntax is as follows:

import numpy as np

my_array = np.array([1, 3, 5])
my_binary = my_array.tofile("my_binary.bin")

In this example, the array `my_array` is saved to the file `my_binary.bin`. The file extension `.bin` is used to indicate that the file is a binary file.

The `tofile()` method can also be used to specify the format of the binary file. The default format is `”F”`, which means that the array is saved in floating point format. You can also use the format `”I”` to save the array in integer format.

The `tofile()` method is a quick and easy way to convert an array to binary. However, it is important to note that the array is saved in a single file. This means that if you have a large array, it may not be practical to save it to a single file.

Using the savez method

The `savez()` method can be used to save multiple arrays to a single file. This can be useful if you have a large array or if you want to save multiple arrays to the same file.

import numpy as np

my_array = np.array([1, 3, 5])
my_other_array = np.array([7, 9, 11])

np.savez("my_binary.npz", my_array, my_other_array)

In this example, the arrays `my_array` and `my_other_array` are saved to the file `my_binary.npz`. The file extension `.npz` is used to indicate that the file is a Numpy compressed array file.

The `savez()` method can also be used to specify the format of the binary file. The default format is `”zip”`, which means that the arrays are saved in compressed format. You can also use the format `”raw”` to save the arrays in uncompressed format.

The `savez()` method is a more versatile way to convert an array to binary. It can be used to save multiple arrays to a single file and it can also be used to specify the format of the binary file.

Key Takeaways

• Numpy Python library provides a way to convert arrays to binary files.
• The `tofile()` method can be used to save an array to a binary file.
• The `savez()` method can be used to save multiple arrays to a single file.
• The `tofile()` method is a quick and easy way to convert an array to binary.
• The `savez()` method is a more versatile way to convert an array to binary.

FAQ

• Q: What is the difference between the `tofile()` and `savez()` methods?
• A: The `tofile()` method saves an array to a single file, while the `savez()` method can save multiple arrays to a single file.
• Q: What is the file extension for a binary file saved using Numpy?
• A: The file extension for a binary file saved using Numpy is `.bin`.
• Q: What is the file extension for a compressed binary file saved using Numpy?
• A: The file extension for a compressed binary file saved using Numpy is `.npz`.