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Rating Stats for

aichao

Rating
1525.83 (22,903rd)
Reputation
5,872 (27,817th)
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Title Δ
unexpected error when taking complementary set for data.frame in th... 0.00
How to replace NULL/? with 'None' or '0' in r +0.17
How to do previous tick aggregation without aggregateTrades from hi... +0.44
R: Add a column of shorter length that subtracts each row in a sing... -0.57
Removing the last trailing underscore from a string 0.00
How can compare value of two table? +1.92
Select half of the dataframe given values in one column 0.00
Evaluate Time Between Elements of Row -0.53
Removing duplicated rows in df based on column of matches in R -0.73
Loop through df column, comparing to list and creating new column -0.73
Convert data frame to spatial lines data frame in R with x,y x,y co... +1.36
R Date time conversion - lapply and unlist is converting to days af... -0.57
Is it possible to map one string to another using a dictionary-like... -0.02
dplyr mutate calling another dataframe -0.11
Conditional replacement of NAs in two rasters of same dimensions R +0.50
keep specific duplicate based on lookup table in R -1.41
How to match the boolean output of function "by" to input... 0.00
Subsetting dataframe by multiple row and column matches using dplyr -0.52
Multiple matching function in r +0.06
How can I move pairs of columns into rows and create an ID at the s... 0.00
using several eigen matrices as statetypes in boost/odeint 0.00
Change table to a longer format based on groups 0.00
R time from nearest zero crossing 0.00
R dpylr select_if with multiple conditions +0.18
dplyr summarise() with special functions for edge cases 0.00
R For loop fails applying max function -0.89
Efficiently looping through rows and columns with if statementes +0.47
R - Distance matrix from two separate data frames -0.52
Finding the number of values above a value and less than a value in... -0.94
How-To Aggregate Data Based on Columns +2.09
boost::mpi's irecv() returns non-initialized status objects +0.48
How extract data from a datatable by making comparison between colu... +0.22
R: date/time "YYYY-MM-DDThh:mm:ss.sTZD" import +0.47
Adding quantile column to dataframe in R 0.00
How do I calculate the coverage of an area from point data? +0.47
dplyr: How to handle multiple value +0.06
Extracting multiple rows for each ID based on a condition -0.11
Tidy up a dataframe where each column contains more than one variable -1.77
find indices of values within tolerance range in R -0.41
How to identify the position of the first occurring local minimum i... -0.36
Sum the values of groups of 4 contiguous columns in R -0.97
R: Combining several character columns into one by replacing NA-rows -2.20
A clean way to aggregate/groupby involving only the distinct values... 0.00
Checking whether coordinates fall within a given radius +0.48
Applying data.frame-consuming functions over groups of rows 0.00
changing projection of raster stack from HKH albers equal area coni... 0.00
R dplyr - rollmean using group by columns 0.00
Reproducing Singular Value Decompition in R 0.00
dual index loops in R 0.00
R function for position of sun giving unexpected results +3.82