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Rating Stats for

G. Grothendieck

Rating
1622.82 (1,021st)
Reputation
165,339 (319th)
Page: 1 ... 30 31 32 33 34 ... 105
Title Δ
Count how many values of a variable changed according to two other... -2.22
Getting the names of inputted vectors to an R function +1.60
Retrieving month number in fiscal year using lubridate +0.37
Replace specific values in a column in data frame 0.00
How to return a subset of data frame matching a parsed date string... +0.33
Is there a nice way to plot two regression lines on one plot? 0.00
what is the most efficient way to sum over all observations in prev... 0.00
transforming data into time series -0.18
Use gsub remove all string before first numeric character in R +2.81
Converting factor date time columns into POSIXct in R 0.00
How to write data from console to .csv file with column headings 0.00
Add list of list into a dataframe +1.34
How to plot non-linear trend line for time series data 0.00
Separating characters by a delimiter into vectors assuming fixed wi... -1.45
Is there a native object-id or pointer-value in R for R objects? +1.41
Replace cos^..(...) by (cos(...))^ +1.11
Relist a list containing data frames 0.00
How do I reorganize my dataframe to run Krippendorff's alpha? 0.00
How to find the minimum and maximum in many rows per single value +1.16
select an amount after string in R 0.00
How does the 'group' argument in rowsum work? 0.00
How can I import and re-export a text file without changing the spa... -0.62
convert date to numeric and back to date 0.00
Better way to apply rolling function to zoo or xts object? 0.00
Read multiple CSV into R based on where header begins and compile +0.56
How Can I us maxgap with na.fill on an zoo or xts? +0.50
Better way of binning data in a group in a data frame by equal inte... -2.02
varying combination of columns in data.table where clause +2.01
calculating volatility of return at end of each month using 1 year... 0.00
Multi-Line Time Series Not Formatting Correctly +0.58
Filtering queries from data frame on date part using sqldf -0.16
R - evaluating return() in parent environment 0.00
Cross Prod Rolling Values +1.25
Defaults of function argument which name correspond to existing fun... 0.00
New data.table column returns nth largest value in a row +0.44
How to read a single .csv file that consists of multiple commented... 0.00
Creating multiple Dataframes from a multidimensional array of matri... +0.32
Delete the response variable from a formula -0.92
insert commas in text string after certain words in r -0.16
How to symmetrise a dataset in [0,1]^d in a bijective way 0.00
Check if string of one table are all contained in another table 0.00
converting data to a choice model data structure +0.62
Row-wise dataframe creation using SQL-style INSERT for improved leg... 0.00
Read comma-separated file which also have comma within a column 0.00
Extract column from data.frame faster than from matrix - why? +0.34
R connect string and dynamic variables 0.00
Set all vector elements to NA in a list of vectors -0.86
Changing axis with ts.plot - R 0.00
Cut elements from the beginning and end of an R vector -0.55
String replace ignoring characters +0.32