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Rating Stats for

G. Grothendieck

Rating
1622.82 (1,021st)
Reputation
165,339 (319th)
Page: 1 ... 76 77 78 79 80 ... 105
Title Δ
Elegant way to optionally supply an argument to a function in R? 0.00
How to convert an integer value to datetime in sqldf in R +0.36
Is it possible to read two tables from the same text file? +2.17
Select the second observation per group in R +0.31
multiple line on same plot for timeseries -0.12
rollapply: fix the starting observation in each sliding window? 0.00
In R, how do I maintain column names through by and zoo? +0.38
R: How to extract dates from a time series 0.00
Substring extraction from vector in R -0.78
R , rattle , recode -0.09
R: Using paste depending on the number of words in a string within... -1.50
Sum rows by date range, for a given identifier -2.14
Convert the date format "20150101" into Jan-2015 in R -0.06
Merge and concatenate two data frames in R -0.46
Get prior date based on criteria in R -1.57
R: How do I change gaps (holidays) in a time series of a daily inde... -1.91
How do I optimize sapply in R to calculate running totals on a data... +0.27
R ddply rollingmean help: Need to capture rolling mean by Unique ID 0.00
Replacing entire string when a single word is in the string R -1.82
frequency() and cycle() of a monthly xts object returns value "... 0.00
R: Convert hours:minutes:seconds -0.72
R: aggregate based of multiple columns 0.00
How to separate specific list items with "+" and add to f... +1.99
how to convert data frame into time series in R +0.37
R xpathApply: how to use conditional statement instead of looping w... 0.00
R package constructing time objects from date and hour(integer) +1.28
R- SQLDF - SELECT ... CASE... END 0.00
R: Split data frame when number of columns is a prime 0.00
Get sum of events in one day +0.00
R paste string with collapse - How to keep string with quotes? +1.84
Extract text that follows a specific word/s in R -0.27
R: obtaining last Friday's date +0.35
Group data by day to zoo times series object in R. 0.00
Fill last spot of matrix with NA -1.92
want to apply zero in total for missing time in table a -2.73
Parsing messy dataframes to reshaped data +1.97
Using string as object in R -0.12
Which regex to use in R? +0.35
divide rows in data frame with vector +1.84
dplyr mutate in zoo object 0.00
Aggregating monthly column values into quarterly values 0.00
R: create an array of expressions to pass to function 0.00
extracting "yearmon" from character format and calculatin... -0.34
extract specific substring sql -0.13
R, regexpr,gregexpr, keep track of matches 0.00
convert List to zoo and use rollapply on the List +0.37
How to rollapply array along 3rd dimension? -2.37
Extract characters that differ between two strings -1.16
looping for a time series object -0.14
regex capture repeated phrases -2.18