StackRating

An Elo-based rating system for Stack Overflow

Home | About | Stats and Analysis | Get a Badge

Rating Stats for

Zheyuan Li

Rating
1705.91 (128th)

Reputation
49,979 (2,002nd)

Page: 1 2 3 ... 24

Title	Δ
Individual age at peak velocity from linear mixed natural spline mo...	0.00
Get subject-specific peak velocity and age at peak velocity values...	+0.22
How to efficiently extract a row or column from a "dist"...	0.00
why outputs of linear model from these 2 ways are different in R?	0.00
How to fit a line with fixed points? (in R)	0.00
R regression with factor: get coefficient for levels, not as differ...	0.00
Can't plot smooth spline in R	0.00
Function for multiple regression, using QR decomposition and backwa...	0.00
Degrees of freedom in the smoothing spline fit in a GAM formula	0.00
How can we find E(X^n) for a discrete random variable X in R?	0.00
Finding the expectation of n Poisson values in R	0.00
Why does lm's fixed intercept not work with poly (raw = FALSE)	0.00
mgcv: How to use 'exclude' argument in predict.gam?	0.00
How can I get standard errors for my 4 parameters when the Hessian...	0.00
Translating Vector in R	-0.77
Split a list in R into new vectors	+0.23
Apply a function over pairwise combinations of arguments	+0.83
Transform binary vector to binary matrix	-1.46
Calculating working residuals of a Gamma GLM model	0.00
How do you efficiently return the order of an increasing index?	+1.06
Generating unique pairs from R vector	0.00
create multi-normal data in R using mvrnorm	0.00
Vectorize polynomial	0.00
What is a better way to write this nested for loop in R?	0.00
Why does r str changes evaluation	0.00
Printing a triangle in r	0.00
How to safely drop nothing from a vector when the negative index co...	0.00
Why does lapply() convert my R data frame to list?	0.00
How to manually calculate the residuals of linear model in R	+0.94
mixed combinations / permutations from different sets	0.00
For a polynomial, get all its extrema and plot it by highlighting a...	+2.00
For a polynomial, get all its extrema and plot it by highlighting a...	-2.00
get x-value given y-value: general root finding for linear / non-li...	+0.24
How to estimate x value from y value input after approxfun() in R	0.00
Getting the index of an array	0.00
Can I create a version of the logistic map function without a for l...	+1.52
generate multinomial random varibles with varying sample size in R	+0.60
Why do I get many NA's in a "for" loop that simulates...	0.00
Counting the elements in rows and map to column in r	+1.47
Why does "vectorizing" this simple R loop give a differen...	+0.67
R loop to approximate square root of a positive real number with Ne...	0.00
sample with replacement but constrain the max frequency of each mem...	0.00
More efficient way of counting proportion of random numbers below t...	-0.15
I want p-values in cor() using R	-0.26
What's wrong with my R function of logistic map	0.00
making a triangular (or generally a square) matrix symmetirc	+1.52
Write a function to remove everything in the global environment	0.00
run R program through Unix shell script	-0.54
Generate non-negative (or positive) random integers that sum to a f...	+0.66
How to save the coefficients for each optim iteration?	+0.25