Recovering data from scanned graphs: Performance of Frantz's g3data software

被引：14

作者：

Bauer, Ben ^{[1
]}

Reynolds, Michael ^{[2
]}

机构：

[1] Trent Univ, Dept Psychol, Oshawa, ON L1H 7L7, Canada

[2] Trent Univ, Peterborough, ON K9J 7B8, Canada

来源：

BEHAVIOR RESEARCH METHODS | 2008年 / 40卷 / 03期

关键词：

Difference Limen; Linear Scaling; Paper Copy; Reconstructed Graph; Visual Number;

D O I：

10.3758/BRM.40.3.858

中图分类号：

B841 [心理学研究方法];

学科分类号：

040201 ;

摘要：

Recovering data points from scanned or photocopied graphs by hand is time consuming, prone to error, and it requires patience and a steady hand. An alternative is to use g3data-a program that reads many common image file types and allows accurate estimation of data point coordinates from the graphs contained in these files. Limits of the software are discussed, and validation of its accuracy using graphs with known data values is presented.

引用

页码：858 / 868

页数：11

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