About warning
Hi, Two things: 1. Please be patient -- it's been less than 24 hours on the weekend. 2. Please check the list for replies, in case somebody replies to the list but not to your individual address. In particular, Ben Bolker already replied to the list with an answer: https://stat.ethz.ch/pipermail/r-sig-mixed-models/2021q2/029481.html Good luck! Best, Phillip
On 17/5/21 9:33 am, Atsuko Nakagawa wrote:
Hi I send the following mail last night.? Please help us. -------- Forwarded Message -------- Subject: About warning Date: Sun, 16 May 2021 19:10:21 +0900 From: Atsuko Nakagawa <nakagawa at hum.nagoya-cu.ac.jp> To: r-sig-mixed-models at r-project.org Hi Thank you very much for your help. When we ran Package lme4 to our longitudinal data, we got following warnings repeatedly.
fixed-effect model matrix is rank deficient so dropping 2 columns / coefficients boundary (singular) fit: see ?isSingular
Nevertheless, we got some results. Are these valid? When I look for the Q&A in some Statistic Forums, sometimes I found the previous answer that we do not have to care these warnings. In actuality, how do we deal with these warnings? Thank you for your time. Atsuko Nakagawa Graduate School of Humanities and Social Sciences, Nagoya City University, JAPAN [[alternative HTML version deleted]]
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