Cross Validated
user avatar
user avatar
user avatar
Zheyuan Li
  • Member for 5 years, 11 months
  • Last seen more than a month ago
Profile Activity
Stats
674
reputation
26k
reached
13
answers
1
question
Communities
View all
Badges
View all badges
1
gold badge
4
silver badges
14
bronze badges
Top tags
View all tags
37
Score
11
Posts
79
Posts %
22
Score
6
Posts
43
Posts %
7
Score
1
Posts
7
Posts %
7
Score
1
Posts
7
Posts %
6
Score
2
Posts
14
Posts %
6
Score
1
Posts
7
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
7
$R^2$ of regression of $\epsilon$ on $X$ (residuals on independent variables)
Nov 6, 2016
answer
6
How does autoregression work in R?
Aug 24, 2016
answer
5
Linear Regression in R: Need to convert categorical variables to factor or character?
Jun 2, 2016
answer
5
GAM with the negative binomial distribution: why do predictions no match with original values?
Nov 24, 2016
answer
4
Fit a V-curve into a model
Nov 27, 2016
answer
4
t-test analysis is different from t-test of that variable in regression
May 12, 2017
answer
3
In R package mgcv, is it valid to have a random effect smooth on two continuous variables?
May 8, 2018
answer
3
R `lm`, Could anyone give me an example of the misleading case on "prediction from a rank-deficient"?
Jul 14, 2018
answer
3
Difference between intercepts from `lm` (AR(1)) and `arima` functions
May 9, 2017
question
3
How can I understand these variograms?
Aug 8, 2018
Top network posts
View all network posts
120
How to debug "contrasts can be applied only to factors with 2 or more levels" error?
113
Why use as.factor() instead of just factor()
89
Function to calculate R2 (R-squared) in R
64
How does predict.lm() compute confidence interval and prediction interval?
51
lme4::lmer reports "fixed-effect model matrix is rank deficient", do I need a fix and how to?

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.