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Maurits Evers

Rating
1620.29 (1,092nd)
Reputation
32,062 (3,719th)
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Title Δ
Different filter rules for groups using dplyr +2.13
How to sum columns in matrices according to a certain rule? +1.84
Iterating over words across vector of strings and applying change t... +1.29
Dplyr/tidyverse: rename_at `.funs` must contain one renaming functi... +2.59
transform variables and add to dataframe +1.65
Calculate date diff using same date filed column 0.00
Remove date range in top right corner of an xts plot 0.00
Calculate mean by group with dplyr 0.00
Use previous value inside mutate function 0.00
How to supply existing variable to mutate through reference? 0.00
How to get the sum of a variable, for only one value of another var... +0.43
Lookup between dataframes. If match exist then return count, max an... 0.00
Create new column using group variables -0.60
substract two strings in dplyr row wise for R dataframe +2.12
How to plot a line with only a numeric variable? 0.00
Partition a large file into small files in R -1.70
lines on plot in r sometimes don't draw 0.00
R Difference in time between rows -0.13
Make line graph from frequency table in R 0.00
Show multiple histogram using facet_wrap 0.00
adjacency matrix R 0.00
How to count length of NA values by group/factor in R? 0.00
frequency count of a column based on two other columns with datatable 0.00
Group by clause in R for calculating count and mean at the same time 0.00
how does the order function break ties in R? 0.00
R lapply: check if data frame contains a column. If not, create thi... -0.13
R help converting non numeric column to numeric -0.08
How to count rows in a logical vector +0.90
Create new column for each unique item (word) with frequency count +1.91
how to convert date like 09-Oct-2017 to 09-11-2017 by posixct? -0.22
replace missing with na.locf0 -0.81
Join 2 dataframes together if two columns match -1.88
How to store r ggplot graph as html code snippet +0.17
A full parameterized model 0.00
Import csv with 1 json column 0.00
Is there symbolic ODE solver in R ? (ODE = ordinary differential eq... 0.00
Update rows depending on the value in following rows in multiple co... +0.17
Can R language find a generic solution of the first order different... 0.00
How to delete rows in R, which contains the same "set" of... +1.62
Catch function name passed in as argument to a function, for differ... 0.00
Unnesting lists of different depth in a tibble 0.00
How to tell ggplot to select a column that is quoted with `` +0.45
detect new factor level appeared cumulatively by time and group 0.00
How do you separate the column in R? 0.00
Search in character string with list of strings and return match -1.01
Using While Function in a Fibonacci Sequence in R -0.09
matching two data frame columns to a vector of length two to grab a... 0.00
How to perform Post Hoc test, Tukey in agricolae package? 0.00
How do i convert an arbitrary duration(time format(HMS)) into minut... 0.00
R: Increasing size of dividing lines in ggplot2 0.00