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Rating Stats for

G. Grothendieck

Rating
1622.82 (1,021st)
Reputation
165,339 (319th)
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Title Δ
dcast function with binary values and NA 0.00
Weekly and Yearly Seasonality in R +0.34
How to do an inverse log transformation in R? 0.00
Most elegant way to convert lists into igraph object for plotting 0.00
Common entries among multiple columns 0.00
Output "NA" into a new column when string values are same... +1.27
Aggregate hourly data into monthly data starting with the yyyy-mm-d... -0.17
Plot z variable in R with conditional "size" argument -2.16
How to transpose data from columns to rows, two columns at a time? -0.57
Number of remaining days of a month after maximum value appear +0.46
grep from different columns in r -1.03
Aggregate? values in a column, based on an entire list of rows from... 0.00
Regex for gsub to match line until and through newline \n character +1.49
How to convert column list to data frame in R -2.61
Assigning values in a column to deciles when breaks are not unique 0.00
How to pattern match for a list of strings +0.33
R for solving linear programming marketing problem +0.36
How to detect more than one regex in a case_when statement +1.48
understanding behaviour map vs sapply: viewing column names contain... 0.00
grep in R using a character vector with multiple patterns with same... 0.00
Adding a column in a data frame based on a subset of the same data... -0.13
Converting a vector into formula +1.54
Calculate difference between hours, not considering date +1.02
aggregate matrix rows based on groups given in a list -1.96
Calculate time difference on only months and days +0.57
Combine two vectors alternately +1.55
How to combine data with same rownames to one column in R -1.07
aggregate data frame to typical year/week 0.00
How to replicate observations as a function of the values of anothe... +1.55
Calculate mean per group across all columns -0.15
Correlations between numerous variables grouped in dplyr +1.80
Extract characters bound by parentheses -0.00
Collapse matrix to vector and replace values with column names +0.74
sum up results of a recursive function within the same recursive fu... +0.35
Assigning a value to a list item using `assign()` 0.00
Split dataset in R into 3 subsets: lower 25%, middle 50% and top 25% 0.00
Remove rows with specific NA column -0.19
How do I combine mutate_all and ifelse 0.00
extract every element that meets a pattern in a string in R 0.00
Creating ts objects in R with specific days between each registry 0.00
R wide to long reshape with column names -0.59
Drop first element of list of lists, condense list of lists? Too ma... 0.00
count 0's in a zoo (or dataframe) object 0.00
How to add a column to lists within a list without losing their nam... -1.34
Select values based on other columns +0.35
Compose Function of 2 Arguments to Function of N Arguments +1.11
How to FIND missing observations within a time series and fill with... 0.00
Converting features to dummies +1.23
R - Calculate rolling financial balance 0.00
split name into more columns with R +1.31