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Rating Stats for

G. Grothendieck

Rating
1622.82 (1,021st)
Reputation
165,339 (319th)
Page: 1 ... 53 54 55 56 57 ... 105
Title Δ
Find groups that contain all elements, but do not overlap +0.68
dplyr rolling change multiple columns based on multiple columns 0.00
simplifying R code using dplyr (or other) to rowSums while ignoring... -0.13
Ramp up/down missing time-series data in R -0.13
Convert decimal number double to hour, time, or difftime in R +0.85
Find the time lag between two series 0.00
Rolling window with dplyr to find value of factor 0.00
Limiting a linear model to 3rd level interactions in R +1.35
Split date periods by months and add rows in case of necessity +1.40
Iterate through time interval 0.00
pass objects to nested functions using environments 0.00
R - How to covert a long format dataset to a matrix that has multip... -1.28
Fill in trailing variables based on row position using rollmean 0.00
insert a sign (eg., +) between elements of vector 0.00
Conditionally modifying behaviour of parent function 0.00
Filling missing dates in a grouped time series - a tidyverse-way? -0.62
Averaging the value with respect to time +0.35
If rowSums greater than one, divide by sum +1.42
dataframe in R: lookup multiple strings in a cell that are separate... +1.74
List of quosures as input of a set of functions 0.00
Collapse only some variables long to wide format in R +2.69
Return vector of length n to test of length 1, (or different shape... 0.00
Change date variable to continuous month +0.01
Programmatically detect function calls in R formulae, e.g. y ~ x +... +0.38
How to split letters with bracket and numbers in R? -0.55
R: summarize, drop columns change name of dataframe in a list and s... -0.06
Generating a pdf document for every row +0.42
Sample n consecutive dates from a random starting date for each ind... -0.82
R function scope: want to see the return value on next iteration +0.20
Formatting as.Date as monthly to merge tables -1.58
Access aggregated data using values rather than indexes -2.59
Split string of a data frame in new columns -0.99
r - lapply, ifelse and trying to compare row vs previous row in one... +1.65
Parsing names in mixed formats using R +1.45
When to use which()? +0.38
R / Rolling Regression with extended Data Frame 0.00
Difference between [] and $ operators for subsetting +0.39
why solve(eigenvalues, eigenvectors) of cov are different for 2d an... 0.00
Getting regression coefficients for all list elements without using... +1.08
Running R via terminal in Windows and leaving R session open 0.00
Ifelse statement with dataframe subset using date 0.00
Create a one-row dataframe where every column is the same as an exi... 0.00
Calculate factors across columns in R +0.94
R: Best way around as.POSIXct() in apply function +0.95
create function to name objects in R using existing character vector -0.62
Find the best model exponent of the observed data R 0.00
Adding name of individual data frame to new column in merged data f... 0.00
R: Monthly bins based on source date ranges +0.39
Comparing between groups in grouped dataframe -0.42
Making a list of zeros and ones from a large list +1.59