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Rating Stats for

aichao

Rating
1525.83 (22,903rd)
Reputation
5,872 (27,817th)
Page: 1 2 3 ... 5
Title Δ
Psycopg execute_values without id 0.00
Conditional mutate cumsum dlpyr -2.00
Two levels of longitudinal data: how to reshape? 0.00
Values comparison under columns combinations 0.00
Extend an irregular sequence and add zeros to missing values -1.56
Creating a dataframe using the values in another dataframe R -0.05
Identify NA's in sequence row-wise 0.00
Compare Characters Within a Single Column In R +2.07
R: Conditionally remove duplicated rows +1.17
Search a dataframe for values close to a list of numbers +1.69
Replicate each row of data.frame when occurrence -0.89
Wide dummies to long factor with expansion of rows +0.34
How to check whether columns of a matrix follow a predetermined ord... +1.77
Recursive calculation of a simulated variable -1.40
Comparing two data frames in R 0.00
Using daply with multi-variable function 0.00
merge two dataframes by nearest preceding date while aggregating 0.00
split strings and add them as new row +1.82
Consecutive Days by Group - Error in Mutate Function Dplyr 0.00
R: comparing 1 data frame with two other data frames of different l... -1.28
How to fix a time series with missing dates across multiple observa... +0.44
Record Consecutive Days by Group in R -0.07
R Remove specific character with range of possible positions within... +0.62
Convert vector of strings into a vector of objects-names -0.83
Splitting a list/vector of special character in R 0.00
R: median of specific value rows -0.41
Average columns based on other column value and number of rows in R +2.63
R:Identifying points inside a circle and calculating a new column b... 0.00
Use dates as indicators to a function from two different dataframes 0.00
r find index of minima with gap / distance condition -0.52
how to gather columns which are numbered sequentially with tidyr -1.39
computing and formatting averages and squares of time intervals 0.00
Find first sequence episode -0.05
Cannot summarise variables by group in dplyr when passing frames as... 0.00
Convert numeric data such as "715" into Date "July-2... +2.13
Calculate proportions of counts within count categories + dependent... 0.00
Find max and min matrix marginal total variability 0.00
Generate m equally-spaced numbers that sum to 1 in R +2.63
converting daily Total Returns and Prices to annual values in R 0.00
Find closest value for every row in a matrix from another matrix +2.52
The average of values when my factor is excluded 0.00
How to find the mean of a variable for every value of another varia... +2.03
Build Stock Variable in Data Frame from another column 0.00
Associate each elements of a numeric vector to the "most simil... -1.14
Split multiple columns into rows -0.93
R: Find optimal sub-matrix 0.00
R Combine columns in one dataframe with another while removing old... 0.00
Remove the row with ID equals zero for all the ID's having valu... -0.69
R: Aggregating History By ID By Date -1.25
Return the indices of a 3D array in R based on multiple values +0.47