Convert a NumPy array into a CSV using numpy_array.tofile()
This method is used to write a NumPy array into the file.
The tofile() method allows us to save the NumPy array to a CSV file by calling the function with the NumPy array object and passing the CSV file_name and separator to the function.
Example
Python3
import numpy as np arr = np.arange(1,11) print(arr) # use the tofile() method # and use ',' as a separator arr.tofile('data2.csv', sep = ',') |
Output:
Convert a NumPy array into a CSV file
After completing your data science or data analysis project, you might want to save the data or share it with others. Exporting a NumPy array to a CSV file is the most common way of sharing data.
CSV file format is the easiest and most useful format for storing data and is convenient to share with others. So in this tutorial, we will see different methods to convert a NumPy array into a CSV file.
Different methods to convert a NumPy array to a CSV file are:
- Using DataFrame.to_csv() method
- Using NumPy_array.tofile() method
- Using NumPy.savetxt() method
- Using File Handling operations
Let’s understand these methods better with examples.
Contact Us