473,594 Members | 2,996 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Read CSV file into an array

I would like to know how to read a CSV file with a header ( n columns
of float data) into an array without the header row.

Jan 10 '07 #1
2 9521
oyekomova wrote:
I would like to know how to read a CSV file with a header ( n columns
of float data) into an array without the header row.
Did you read our responses from the last time you asked this question?

Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco

Jan 10 '07 #2
oyekomova wrote:
I would like to know how to read a CSV file with a header ( n columns
of float data) into an array without the header row.
import csv

l = []
for line in csv.reader(open ("my.csv").read lines()[1:]):

Which really gets you a list of lists.

Posted via a free Usenet account from http://www.teranews.com

Jan 10 '07 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

by: Chris | last post by:
Can anybody help. I need to read a txt file backwords line by line. Can anybody help me do this. Thanks Chris
by: deko | last post by:
I have a text file ("eighty.txt") that looks like this: 83|84|85|86 I can read the file into an array like this: $numbers= file("eighty.txt"); But how do I key the array? I'd like to use strings as keys: three, four, five, six - do I add the key names in the file?
by: deko | last post by:
It's nice to be able to generate an html table from a PHP array. I know how to do this, but the array in question is built from a file. The file in question can be very long, and I only want the first 10 lines. So, I'd like to reduce the overhead it takes to read the file into the array by limiting the number of lines read in - rather than have the entire file read in and then limiting the output to the html table. $visits=...
by: Wei-Chao Hsu | last post by:
There are some data files look like 1.) data1.txt ---------------- 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 2.) data2.txt
by: Adi | last post by:
Hello eveyone, I wanna ask a very simple question here (as it was quite disturbing me for a long time.) My problem is to read a file line by line. I've tried following implementations but still facing problems: Assume that FILE* filePointer; unsigned char lineBuffer;
by: srikanth | last post by:
i have a text file like below, test.txt file (actually my test file file is with 10000 lines but here i tested with 3 lines) 3 06.09.2006 16:37:25 3 06.09.2006 16:40:02 3 06.09.2006 16:42:31 i want to read this and output as it looks but iam getting abnormal
by: chance | last post by:
Hello, I have a file on disk called TEMP.ZIP and I would like to somehow get this into a memory stream so I can eventually do this: row = dataStream.ToArray() However, I am not sure of the correct way to get it into a memory stream. Any help appreciated.
by: runsun | last post by:
Thanks in advance. This program is written in C. It needs to read all characters from a file; then write them into a 3D array (yes, 3D!). The file is a .prn file (one of the Excel types), which separates columns with space. To simplify the question, the file contains 3 rows and 2 columns: abc 2,3 defg 4 h 5,6 array is array, where the 3rd D contains the # of rows; 2nd D has #conlumns; 1st D contains the character elements. i.e....
by: rohit | last post by:
Hi All, I am new to C language.I want to read integers from a text file and want to do some operation in the main program.To be more specific I need to multiply each of these integers with another set of integers stored in an array.It would be a great help if you could provide some code for it.I tried the function fscanf but by that I am able to read only the first integer of the text file.Please help me.
by: dm3281 | last post by:
Hello, I have a text report from a mainframe that I need to parse. The report has about a 2580 byte header that contains binary information (garbage for the most part); although there are a couple areas that have ASCII text that I need to extract. At the end of the 2580 bytes, I can read the report like a standard text file. It should have CR/LF at the end of each line. What is the best way for me to read this report using C#. It is...
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.