western

[转帖]有趣又让人迷惑的时区

百般思念 提交于 2020-02-16 08:43:58
https://www.worldtimezone.com/faq.html Interesting and confusing facts about time / time zones: Note: +11:00 or UTC+11:00/GMT+11:00 - mean that current place is 11 hours ahead of UTC (Universal Time Coordinated) or GMT (Greenwich Mean Time). For example, current Vladivostok standard time is UTC+11. -08:00 or UTC-08:00/GMT-08:00 - mean that current place is 8 hours behind of UTC (Universal Time Coordinated) or GMT (Greenwich Mean Time). For example, San Francisco standard time (PST) is UTC-08. Some places/countries use time offsets not an integral number of hours from UTC/GMT. Examples:

Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, …) 0 non-na cases

匿名 (未验证) 提交于 2019-12-03 00:59:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have already checked the other questions with on this issue, but since the problem seems to be very specific they weren't helpful. I have a dataframe like this (this is just a quick example, example data from dput() is provided below): It contains the abundance for 11 species on several different sites per county (more than 1500 sites in over 400ish counties) for each year 2005-2011. for each site, in every county, every year, all species have been accounted for, so there is either an NA, or a number in abundance for every year. The number