Dump a NumPy array into a csv file

Question

Dump a NumPy array into a csv file

Is there an approach to dump a NumPy array into a CSV file? I have a 2D NumPy array and need to dump it in a human-readable format.

csv array python

3 years ago by Bharatv4tg1

2 Answers

Login / Signup to Answer the Question.

Login Signup

**aashaykumar** · Answer 1 · 2021-05-13T11:37:10

You can use pandas. It does take some extra memory so it's not always possible, but it's very fast and easy to use.



import pandas as pd 

pd.DataFrame(np_array).to_csv("path/to/file.csv")

if you don't want a header or index, use to_csv("/path/to/file.csv", header=None, index=None)

**kshitijrana14** · Answer 2 · 2021-05-15T14:00:11

numpy.savetxt saves an array to a text file.

import numpy

a = numpy.asarray([ [1,2,3], [4,5,6], [7,8,9] ])

numpy.savetxt("foo.csv", a, delimiter=",")

C TUTORIAL

C PROGRAMS

INTERVIEW TESTS

EXECUTE CODE

C++ TUTORIAL

C++ PROGRAMS

INTERVIEW TESTS

EXECUTE CODE

PYTHON TUTORIAL

PYTHON HOW TOS

INTERVIEW TESTS

EXECUTE CODE

JAVA TUTORIAL

JAVA CODE EXAMPLES

SPRING TUTORIAL

MORE IN JAVA

COMPUTER ARCHITECTURE

COMPUTER NETWORK

OPERATING SYSTEM

DBMS & SQL

PL/SQL

MongoDB

EXECUTE SQL

ANDROID DEVELOPMENT

GO LANGUAGE

LINUX

DOCKER

HTML TAGS (A to Z)

CSS REFERENCES

SASS/SCSS

KOTLIN

GAME DEVELOPMENT

PHP

GIT GUIDE

JAVASCRIPT

ADVANCED DSA

Dump a NumPy array into a csv file

2 Answers

Login / Signup to Answer the Question.