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.

《美国同性婚姻问题中参议员立场之支持、反对及模糊性.xlsx》所对应者，为美国100位参议员就同性婚姻问题的立场观点。自1996年至2014年间，针对每位参议员，我们根据其当年对同性婚姻问题的支持、反对或模糊态度，分别赋予数值1、-1或0。其中，模糊态度指该参议员既不支持也不反对同性婚姻。参议员的观点将考虑其在任期间的表现，并在观点值发生变更时予以更新。每年12月26日被选定作为记录该年度参议员立场观点的日期，不论参议员当年是否发生职位变动。数据来源于多个渠道（例如，个人候选人/参议员网站、新闻媒体以及维基百科），每位支持者的立场均以其在该问题上首次公开表态的提及为准。若某位参议员被认定为支持者，则自该年起，直至其任期结束，均被视为支持者。而《美国各州同性婚姻法律状况.xlsx》所对应者，为美国50个州在同性婚姻问题上的州级法律数据。若某州已合法化、禁止或既未禁止亦未合法化同性婚姻，则分别赋予数值1、-1或0。