Kim_Dickinson_CurrentBiology_2017_Drosophila_Path_Integration

These datasets contain all the fly walking trajectories used in the following paper: (insert paper reference). Each dataset is divided into 3 sections with the following section headings: Experimental conditions, Arena data, Fly data. Experimental conditions contains information on the arena size and type (standard vs. slider), food (yeast, sucrose, water), fly (strain, sex, age, mating state, nutrient state, starvation state), and illumination (white light vs. dark). In Arena data, each row contains the x,y center and radius of the food drop, as well as the x,y center and radius of the arena. For slider experiments, the arena data also contains the x,y center and radius of the food drop after sliding, as well as the frame numbers for the start and end of the slider moving. The arena data can be matched with their corresponding fly trajectory by selecting for the same fly id number in the first column. Note that the fly id number is zero-indexed. In Fly data, each row represents one frame of data for the fly whose id is listed in the first column. The column values are the fly id number, time, x position, y position, x velocity, y velocity, heading, and heading velocity of the fly. The data were collected using an automated tracking system and smoothed with a 1-D Kalman filter. Refer to the Methods section of the paper for more details.

本数据集包含下述论文（此处插入论文参考文献）中所用的全部果蝇行走轨迹数据。各数据集均分为三个章节，章节标题依次为：实验条件（Experimental conditions）、行为箱数据（Arena data）以及果蝇轨迹数据（Fly data）。
实验条件章节涵盖行为箱的尺寸与类型（标准型vs滑块型）、食物源配置（酵母、蔗糖、纯水）、果蝇的品系、性别、日龄、交配状态、营养状态与饥饿状态，以及光照条件（白光环境vs黑暗环境）。
行为箱数据章节中，每一行包含食物滴的x、y中心坐标与半径，以及行为箱的x、y中心坐标与半径。针对滑块型实验，行为箱数据还额外包含滑块移动后食物滴的x、y中心坐标与半径，以及滑块移动过程的起始与终止帧序号。
可通过第一列的果蝇ID号，将行为箱数据与对应果蝇的轨迹数据进行匹配，需注意：果蝇ID号采用零索引（zero-indexed）规则。
果蝇轨迹数据章节中，每一行代表对应ID果蝇的一帧轨迹数据，各列依次为：果蝇ID号、时间、x轴位置、y轴位置、x轴速度、y轴速度、运动朝向以及朝向角速度。
本数据集通过自动化追踪系统采集，并经一维卡尔曼滤波器（1-D Kalman filter）进行平滑处理，更多细节可参见论文的方法章节。