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Rating Stats for

chinsoon12

Rating
1493.44 (4,328,249th)

Reputation
9,481 (16,227th)

Page: 1 ... 12 13 14 15 16 ... 22

Title	Δ
All possible permutations of a few letters with varying lengths of...	0.00
Return min value for subgroups of grouped data	0.00
R: Scaling Every Column in Data.Table	0.00
R Find the "groups" of tuples	0.00
How to calculate moving average by specified grouping and deal with...	-1.23
Is there a more memory-efficient way to use combn to subtract every...	0.00
R: for a new variable in row [i] compare row-comprehensive in colum...	+0.02
How to pass a multivariate vector valued function (with variable le...	-0.99
generate a special matrix (max value of column sum is minimum) with...	0.00
How to add constraints to Linear Programming of the Knapsack Proble...	0.00
Rolling min without replacement	-1.35
Contingency table of unique ids	+0.51
R padding datetime data by groups based on another datetime variable	0.00
Start and end dates of time periods defined by a column in a data f...	+2.90
Sum most recent scores in 3 unique areas	-0.94
Identify the difference between rows in data.table and create new c...	0.00
Combining an ifelse statement with shift data.table function in R	-2.02
How to match panel data based on year pattern?	0.00
r efficient way to calculate the difference between rows	-1.98
How to anti-sort data using R	+0.10
Remove reoccurring data from data.table	-0.73
R data.table grouped sum for column referenced by name stored in a...	0.00
Adding in brackets for JSON in R	0.00
Group by column, keep minimum value, on tie concatenate selected va...	-0.60
Convert a DataFrame into Adjacency/Weights Matrix in R	-1.21
Vectorized Rolling/Cumulative Mahalanobis Distance in R	0.00
Apply different function parameterisation to dataframe split using...	0.00
How do you split a time series into separate events and assign an e...	0.00
List of combination between rows of diagonal block matrix	0.00
R - Creating a random combination for elemens of two vector	0.00
How to apply a function per row of a column in a data table with ot...	0.00
How to apply a table to several columns with data.table?	-0.54
Get index of element in unfiltered vector	-1.31
add column with data in rows before & after a condition	0.00
Working with Data.table within Data.table in R	+1.93
R - Create multiple scenario combinations	+1.35
Cumulative sum in data table, but using a group-by for each row	0.00
Correlation of each data.table row to another data.table row	0.00
How to check whether a vector is LIFO/FIFO decreasing	+0.49
dynamically coding a function to have an arbitrary number of argume...	-0.52
Subtraction to combine two R data.tables by matching rows	-1.29
calculating statistic difference between groups of rows with adjace...	0.00
Iterate calculations within subset of datatable	+0.52
efficiently look-up data from one data.frame in another data.frame...	0.00
Rolling sum function in Rcpp	+0.02
Moving data.table columns to rows based on conditions	0.00
Build matrix with combinations of pairs between 2 groups in R	0.00
Finding combinations of values with constraints in R	+0.05
How to merge a list of data.tables without getting splitted columns?	0.00
find longest length and value in repetitive sequence in data.table	+2.71