https://github.com/gnikit/fileio

A template allowing to read multiple columns of tab or space delimited files. Similar functionality to numpy.loadtxt()
https://github.com/gnikit/fileio

cpp file-io library numpy

Last synced: 10 months ago
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A template allowing to read multiple columns of tab or space delimited files. Similar functionality to numpy.loadtxt()

• Host: GitHub
• URL: https://github.com/gnikit/fileio
• Owner: gnikit
• Created: 2018-06-03T12:56:21.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2020-05-24T13:01:03.000Z (over 5 years ago)
• Last Synced: 2025-02-01T20:14:08.311Z (about 1 year ago)
• Topics: cpp, file-io, library, numpy
• Language: C++
• Homepage:
• Size: 8.48 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# FileIO: Easy to use file-reading/writting template

[![Build Status](https://travis-ci.com/GNikit/FileIO.svg?branch=master)](https://travis-ci.com/GNikit/FileIO)

## Description

A simple header only implementation read/write template class for:

1. Writting 2D and 1D vectors in ASCII to file

2. Reading whole or partial (certain columns) ASCII files into 2D and 1D vectors

3. Displaying 2D and 1D vectors

The class offers support for writing vectors to files in by using

one of two formats:

- Row major (each vector is a row in the output file)

- Column major (each vector is a column in the output file)

Similar functionality to `numpy.loadtxt()`.

Returns a `vector>` of the read columns.

In the case where the user-defined columns *n* are less than the file columns,

`ReadFile()` will read only the first *n* columns.

## Usage

Sample code reading and writing a 2D vector

```C++

#include "FileIO.h"

int main() {

  FileIO file;

  // Load 2D vector from file

  // args: filename, file columns, comment char, format=1:column-major

  std::vector> test = file.ReadFile("example.log", 2, '#');

  // Write 2D vector to file

  // args: 2D vector, filename, delimiter

  file.Write2File(test, "example_copy.log", " ");

}

```