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markus

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1639.78 (707th) 		Reputation
14,207 (10,041st)
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Title Δ
Filtering dataframes in named list based on the name of each datafr... -1.39
R - iterate to create list from condition based on multiple lists/v... -0.65
subsetting a data.table based on a named list +1.18
How to change numeric variable into categorical -0.49
How to create a symmetrical data frame in R based on another symmet... +0.09
counting occurences in the columns of a df with r 0.00
R- How to get mean/median/sd of non-NA intervals for different colu... +0.34
Conditional count in r data.table with two grouping variables 0.00
Select a column from a list of matrices using a list of vectors 0.00
Reshape N 2-d matrices (T*M) into a 3d tensor of (T*N*M) with tidyv... 0.00
How to calculate the age of a company using the difference of betwe... -0.12
How can I pass individual `curvature` arguments in `ggplot2` `geom_... +0.34
Filter to remove all rows before the first time a particular value... -0.04
How to remove a tail with NA in r? +0.92
Rank groups within a grouped sequence of TRUE/FALSE and NA -1.27
how to add a row in a data frame as many as it has rows 0.00
Calculate the difference in volume of total volume +1.23
Simultaneous walk over vectors in R +0.35
for-loop:The entries in vector A are to be replaced by the entries... +0.93
How to filter out rows that contain two specific character strings... +0.35
Applying a for loop over multiple vectors 0.00
Multiplying a fixed number randomly in % of the columns in one data... +0.33
Creating a vector of sequences 0.00
Efficient way to add rows to dataframe while being able to add colu... 0.00
Row-wise operations with mutate_at +1.26
How to create a function to perform regressions for a range of vari... +1.29
R: surprising behaviour of `identical` 0.00
Identify and count spells (Distinctive events within each group) +1.47
Extract middle name from web page using R 0.00
How do I group a sliding window in the j argument by ID? 0.00
I need to change date format from "xx time ago" like: a y... +0.36
Unable to store values in a numeric array inside for loop -0.25
Summing values in one column until a certain value is encountered i... 0.00
Remove/replace values in a list using the previous number in R +1.57
ggplot geom_point plot two categorical variables and fill in missing 0.00
Get indeces of columns based on a vector of names (in R) +0.36
How do I implement a sliding/lagging window? +1.33
Find conserved columns in matrix 0.00
Sorting one variable in a data frame by id +0.95
R dplyr's group_by consider empty groups as well +0.56
Expand dataframe by ID to generate a special column -1.82
Calculate means across elements in a list +0.53
How to find indices of change based on two vectors r +0.55
How to split a table by one column in R? +1.38
Need to make columns showing which IDs are assigned to those column... -0.08
Count values of same kind in a row and omit interruptions -0.65
transpose data.frame and counting non NA values per column -1.79
Faster equivalent to group_by %>% expand in R +1.25
Counting the number of appearances of a certain value in a column 0.00
how to set a parameter to a list in stat_function 0.00