Senators' opinions and the state law on the issue of same-sex marriage in the United States

''Senators opinion in terms of support, oppose and ambiguity on the issue of same-sex marriage in the United States.xlsx'' corresponds to the opinion of the 100 senators on the issue of same-sex marriage in the United States. For each year from 1996 to 2014, we assign values 1; -1 or 0 to each of these senators if the particular senator supports, opposes, or is ambiguous, respectively, on the issue of same-sex marriage in that year. Here ambiguity refers to the case where the particular senator neither supports nor opposes same-sex marriage. The opinions of the senators are considered during their period of tenure and are replaced with the new where the opinion values are modified accordingly. 26th of December of each year is chosen to log the opinion of the senators for that specific year, disregarding whether a senator is reassigned within the year. The data are collected from different sources (for example, personal candidate/senator websites, news media, and Wikipedia) and each supporter is identified with the first mention of support, opposition, or ambiguity publicly on this issue. In case a particular senator is identified as a supporter, then the senator is considered as a supporter for all successive years until the end of his or her tenure. ''State laws in terms of legal, ban and 'neither legal nor ban' on the issue of same-sex marriage in the United States.xlsx'' corresponds to the data for the state-law on the issue of same-sex marriage across 50 states. We assign values for state-law as 1; -1 or 0 if that particular state has legalized, banned, or neither banned nor legalized same-sex marriage, respectively.

《美国参议员同性婚姻（same-sex marriage）议题态度数据集.xlsx》收录了美国100名参议员在同性婚姻议题上的立场数据。针对1996年至2014年的每一个年度，我们为每位参议员赋值1、-1或0，分别对应其在该年度对同性婚姻议题的支持、反对与立场模糊态度。其中，立场模糊指该参议员既未明确支持也未明确反对同性婚姻的情形。参议员的立场以其任期内的实际态度为准，并会随其态度的更新进行相应调整。我们选取每年12月26日作为该年度参议员态度的记录节点，无需考虑该参议员在本年度内是否发生职务变动。本数据集的数据来源于多个渠道，包括参议员个人竞选/官方网站、新闻媒体及维基百科（Wikipedia）。每位参议员的初始立场以其首次公开提及该议题时的支持、反对或模糊态度为准。若某参议员被认定为支持者，则在其剩余任期内均被视为该议题的支持者。《美国州级同性婚姻（same-sex marriage）法律数据集.xlsx》收录了美国50个州的同性婚姻相关州级法律数据。我们为各州的法律状态赋值1、-1或0，分别对应同性婚姻合法化、同性婚姻被禁止，以及既未禁止也未合法化三种情形。