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Rating Stats for

Ernest A

Rating
1500.64 (436,306th)
Reputation
4,624 (35,990th)
Page: 1 2 3
Title Δ
Seeking a cleaner way to avoid nested if statements (with sapply) -1.76
Count factors after a specific factor 0.00
Counting duplicates in R +5.12
Count specific patterns in data frame, doing interpolation in R -1.58
why my Excel is so much faster than R: find First/ Last oberseravat... +4.02
R: expand dataframe by pairing values within a minimum criteria +4.64
Creating dataframe in R loop and naming it +4.24
Using a function on different parts of data -0.27
R item lists to wide format +4.72
Principal component analysis result -1.81
print the 2nd highest value containing column name by R 0.00
For each value determining if another column contains larger or sma... -2.58
Running an R function over files in a Bash command line 0.00
Confidence intervals (bootstraping using R) determination: error wi... 0.00
Matrix calculation for different levels of factor variable wih elem... -3.89
R: How to do group sorting based on attribute values (dates) row by... +2.18
R calculate and add delta of two dataframe cells for each row +4.17
R: Combining two matrices/vectors of unequal length, matching rows... -4.09
Manual prediction in R (data frame) 0.00
Using variations of `apply` in R +5.30
Contingency table with name of factors instead of counts 0.00
Shorthand for multiple assignments in R 0.00
How can I add a 2D matrix in R as a dataframe variable? -3.95
R Speed up string decomposition 0.00
ways to segment a consecutive list -3.90
euclidean distance of instances of one dataframe with all the insta... +4.10
R: Classification formula from trained GLM model [reproducible exam... +3.57
Create and fill new table with existing data in R -3.77
How to refactor a vector? +1.17
Why does this simple function calling `lm(..., subset)` fail? +2.42
Extract text from a variable in a dataframe and create new vectors 0.00
R - Fast rowsum matrix of every n-th element +1.39
Filling missing rows two data frames +0.14
split big matrix in subsets,R +0.83
Generate Report in R -1.86
Create proportional pivot table with multiple variables in R 0.00
R - Check if element from vector exist in data.frame, and if not, a... +4.28
Substracting every two columns -2.40
A simpler way to achieve a frequency count with mean, sum, length a... -2.48
pass family= to step() via glm() programatically -3.79
Counting frequencies of categorical parameters, total and by groups... 0.00
Vectorized ifelse conundrum 0.00
R: Efficient extraction of events (continuous increase in a variable) -3.98
Create single list from two data frames while preserving class of c... 0.00
Find quantile or look up range for a new data point -4.08
Does R always make a copy of the data when it copies an object? 0.00
Create n-way frequency tables using R 0.00
apt-get install fails with Not Found error because package removed... 0.00
Is there a better clean approach to single-use functions in R? 0.00
Add Percentage rows to a Dataframe -2.23