How to select appropriate hue ranges for sequential color schemes on choropleth maps? A quantitative evaluation using map reading experiments

We propose map reading experiments to quantitatively evaluate the selection of hue ranges for sequential color schemes on choropleth maps. In these experiments, 60 sequential color schemes with six base hues and ten hue ranges were employed as experimental color schemes, and a total of 414 college students were invited to complete identification, comparison, and ranking tasks. Both controlled and real-map experiments were performed, each involving a web-based survey and an eye-tracking experiment. In the controlled experiments, the shapes of the map objects were relatively regular, and attribute data were randomized. In contrast, the shapes were complex in real-map experiments, and real data were employed. Our findings show that widely used color schemes with a hue range of 0º yield poor performance in all tasks; 15º hue ranges yield good performance in the comparison and ranking tasks but poor performance in the identification task. For large hue ranges of 120-360º, participants showed..., We recruited 246 college students to participate in the web survey and 23 college students to participate in the eye movement experiment. Through the experiment, we collected their visual data and arranged them according to different visual indicators. Then we process our data through qualitative and quantitative analysis to get the final result., These datasets are map cognitive data collected in experiments and processed through programs. The README file provides relevant information.  Datasets included:   File Description Controlled experiments-web-based survey.xlsx Web survey data for a controlled experiment, where the map data is randomly generated simulation data Controlled experiments-eye-tracking.xlsx Eye movement data from a controlled experiment, which added an eye tracker to record eye movement data Real-map experiments-web-based survey.xlsx Real experiment web survey data, the experimental map data is real data Real-map experiments-eye-tracking.xlsx Eye movement data from real experiments Correlation and significance test results.xlsx Correlation significance parameters of various experimental data  Blank spaces in the table indicate no data.All tables in the dataset can be opened using Office 2010 and above versions.本研究设计了读图实验，以定量方式评估分级色彩地图（choropleth map）上顺序配色方案（sequential color scheme）的色相范围选取策略。 在本系列实验中，共采用6种基础色相、10种色相范围的60套顺序配色方案作为实验配色，并邀请总计414名大学生完成识别、比较与排序任务。实验包含控制实验与真实地图实验两类，每类均涵盖基于网页的问卷调查与眼动追踪（eye-tracking）实验两个部分。 在控制实验中，地图对象的形状相对规整，属性数据为随机生成的模拟数据；与之相对，真实地图实验中的地图对象形状较为复杂，且采用真实属性数据。 本研究结果显示，广泛使用的色相范围为0°的配色方案在所有任务中表现欠佳；色相范围为15°的配色方案在比较与排序任务中表现优异，但在识别任务中表现不佳。对于120°至360°的大跨度色相范围，受试者表现为…… 本次实验共招募246名大学生参与网页问卷调查，另招募23名大学生参与眼动实验。 通过实验采集受试者的视觉数据，并依据不同视觉指标进行整理；随后通过定性与定量分析对采集数据进行处理，最终得到研究结果。 本数据集为实验中采集并经程序处理的地图认知数据。README文件提供了相关说明信息。 包含数据集如下： | 文件名称 | 文件描述 | | ---- | ---- | | Controlled experiments-web-based survey.xlsx | 控制实验网页问卷调查数据，其中地图数据为随机生成的模拟数据 | | Controlled experiments-eye-tracking.xlsx | 控制实验眼动追踪数据，该实验加装眼动仪以记录眼球运动数据 | | Real-map experiments-web-based survey.xlsx | 真实地图实验网页问卷调查数据，实验所用地图数据为真实采集数据 | | Real-map experiments-eye-tracking.xlsx | 真实地图实验眼动追踪数据 | | Correlation and significance test results.xlsx | 各类实验数据的相关性与显著性检验参数 | 表格中的空白单元格代表无有效数据。本数据集内所有表格均可使用Office 2010及以上版本打开。