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Rating Stats for

G. Grothendieck

Rating
1622.82 (1,021st)
Reputation
165,339 (319th)
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Title Δ
How to look for a certain part in a string and only keep that part -2.09
Rolling standard deviation for every 5th day in R +1.10
Convert long state names embedded with other text to two-letter sta... -1.14
How to add a "." after a String under Conditions in R -0.73
Load csv into R as xts, or comparable to enable time series analysis -0.65
Why read.zoo gives index as dates when times are available +0.14
R zoo aggregate 0.00
pandas timeseries and R zoo -1.73
Estimation of rolling Value at Risk (VaR) using R +0.07
regex extracting first date_time stamp when multiple are present +1.56
Elegant R function: mixed case separated by periods to underscore s... +1.99
What does lag function in R do? -0.24
User Rcpp on Windows Machine with Multiple g++ installs -0.14
convert variable with mixed date formats to one format in r -2.16
R calculate weighted averages for time series with missing values 0.00
Time series regression by group with Newey-West standard errors in R 0.00
How to detect missing dot-dot-dot in generic function argument +1.98
R: apply list of functions on list of argument by name -1.69
Formatting a date in R without leading zeros 0.00
Split up `...` arguments and distribute to multiple functions +0.88
R: aggregating time series groups of irregular length +0.36
Non uniform, multivariable time series in R. 0.00
split string before next to last character +1.32
Error in finding average/mean of columns month wise in R +0.73
Read irregular format text file mixed of text with/without space an... +1.39
How can I customize the search path of symbols when evaluating an e... 0.00
Is there a way to do ROLLUP or CUBE in R like in sql? 0.00
R language Functions within lists +1.49
Cylindrical Clustering in R - clustering timestamp with other data +1.50
dfsql - embedded count statement returning total instead of where c... 0.00
Pattern Matching using Grep and/or RegEx to Extract ID from metadat... -0.91
R strsplit before ( and after ) keeping both delimiters -1.64
R: Compute a rolling sum on irregular time series grouped by id var... -0.65
How to detect sign change (eg, positive to negative) in time series... +1.78
Is there a super fast way to remove all NULL values in a list and a... 0.00
How do I write mathematical equation in R with constants coming fro... +0.47
dplyr::manip: How to use string arguments (holding colnames) instea... +0.44
a daily time series - calculating totals in R -0.21
Getting a command to re-create an object that is simpler than with... 0.00
Looping an R dataframe to generate conditional Strings -0.77
Cast to find frequency of pairs in "R" -1.64
R ifelse avoiding change in date format +0.23
SQL query: convert -0.33
Conditional string splitting -2.17
R: How to subset the most recent 12 months of data for each ID in a... +1.42
R regex to parse token after @ also with no additional tokens in st... -1.30
How to force NA/NULL in aggregate function if data contains NA/NULL -0.21
R data frames match a string pattern from other data frame 0.00
R - determine if string can be eval'ed to a function without us... -2.29
generating sql statements from data returned in R by Postgresql +1.57