The particle panel can be invoked by running the particle panelsample program.
粒子面板可以运行粒子面板示例程序。
2
For this study, the investigators gathered data from the British household Panel Survey - a yearly questionnaire of a nationally representative sample of UK households.
这个研究中数据来源于英国家庭状况调查，它是一个对有代表性的英国家庭样本的年度调查。
3
Most of the changes could just be due to sample variations because of the way that the NRS changes its panel of British readers.