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Rating Stats for

Zheyuan Li

Rating
1705.91 (128th)
Reputation
49,979 (2,002nd)
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Title Δ
Error in optim(): searching for global minimum for a univariate fun... +0.44
R: Monitor progress of vectorized operation 0.00
Sort observations from csv file by month to plot in R 0.00
Return Value of 3rd qudrant -1.29
R: How to generate a xy plot with multiple discrete y against x 0.00
What is the computational complexity of arima() function in R? 0.00
Checking if an r package is currently attached -0.71
Manipulating matrices in C through R 0.00
R: assigning a function vs variable to a variable -1.48
R: NA coefficient returned by lm() 0.00
How to use Reduce() function in R parallel computing? -0.76
R animation error: how to install ImageMagick? +0.42
Why am I unable to see multiple plots appear with a for loop? +0.45
How to apply a function to each element/cell of a data.frame? +0.41
Exclude more than one columns when build logistic regression model... +1.92
predict() error: what can I do if one variable exists in training d... 0.00
Function using If statement does not get executed 0.00
how to find the numbers of all curves -1.90
R: Convert upper triangular part of a matrix to symmetric matrix 0.00
R wilcox.test by categorical subset error 0.00
R reference column while using apply down rows +1.35
How can i merge and concatenate columns in a data frame in R? 0.00
implementing a non-linear relationship within a cox proportional ha... 0.00
how can I fix a function of a interpolation function +0.43
Using aggregate on data sorted by frequency 0.00
how to use lapply in R +0.48
typeof call vs typeof expression -2.10
R: operations between vectors inside of lists and vectors outside 0.00
R Estimating parameters of binomial distribution -1.66
Trying to calculate the inverse of a square matrix +0.45
How to highlight the confidence region of time series prediction wi... 0.00
R smooth.spline(): smoothing spline is not smooth but overfitting m... +2.65
Legend gets messy after saving plot as a PDF 0.00
How can I use the GC function from the seqinr package with lapply? 0.00
Combining columns in R table function +3.77
Unable to load caret package in R on R version 3.2.2 in windows 0.00
Lagrange polynomial: Unexpected interpolation results +3.57
How can I merge two dataframes if two cols have to be the same? +1.70
Problems displaying LOESS regression line and confidence interval 0.00
save results of loop in a vector R +3.74
Determine class of every input argument in R function 0.00
Convert data frame of snp genotypes in numeric matrix -3.35
sorting rows according to a row pattern -0.26
hist() error: 'breaks' do not span range of 'data'... 0.00
How to calculate the difference between dates in R for each unique id -4.16
How to calculate the difference between dates in R for each unique id +3.84
How to troubleshoot Error: (subscript) logical subscript too long 0.00
How to use polygon() to shade below a probability density curve 0.00
R: How to get the percentage change from two different columns +2.83
Verify object existence inside a function in R 0.00