scalanlp/breeze

csvread/csvwrite separator

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#357 opened on Jan 30, 2015

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 (7 comments) (0 reactions) (0 assignees)Scala (690 forks)batch import
enhancementhelp wanted

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Description

I only started using breeze a few hours ago so I may be wrong on this.

I tried to load a space separated file but I could only specify one character as a separator. Unfortunately, my dataset's separator is not consistent(2-4 spaces) as are many other datasets. Wouldn't it be better if the separator is a regular expression? That way I can specify separators like: csvread(file, "\\s+") or csvread(file, ",\\s?")

With regards to csvwrite, I may want to use a comma followed by a space.

Cheers

Contributor guide

Research direction
Implement regex support for the separator parameter in csvread and csvwrite by accepting a regex pattern string and compiling it. Ensure backward compatibility and update documentation.
Tech stack
scala
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
ScalaRegular Expressions
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70