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Colonel Beauvel

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1536.87 (13,471st) 		Reputation
23,409 (5,571st)
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Title Δ
How to create an output with the number of observations in each row? -0.94
How to read multiple .xlsx and generate multimple data frames in R? -0.86
R programming(sum of products) +0.47
How do I speed up this for loop in r -1.58
How to draw lines with lines() without preceding call to plot() in R -0.86
na.pad not working in diff() function 0.00
Suggestions for avoiding for-loops in R +0.30
Create a list of matrices that measure differences in growth rates... 0.00
Take certain value in a data frame +4.35
Find part of string in another string +1.12
How to add index of a List item after melt() in R -3.31
Convert list of matrices of the same order to a array -4.34
How to substitute dashes with dots in every element of character ve... 0.00
lapply: extract specific element -3.75
How to make a list of many data frames without typing their names i... +3.64
How to split contents in a single column to two seperate comumns in... +1.22
Working with temporary columns (created on-the-fly) more efficientl... -3.31
How to replace value in multiple values? -1.38
Merge matrices from one list on matrices from another one in R +4.30
create new column based unique values 0.00
Cumulative sum for positive numbers only +0.88
Generate matrix in RevoScaleR from a data frame +0.30
R: efficient ways to add months to dates? 0.00
How to convert frequency distribution to probability distribution i... +1.97
how do you extract data from data frame columns that contain certai... +4.00
Get row and column name of data.frame according to condition in R +3.65
Sum over a column while another column takes a particular value -4.57
Extract a substring if it has an exact match in another vector +4.52
using constroptim in R on equals constraint on variables 0.00
Using grepl in R to match string +3.51
How to make the levels of a factor data frame the same in all colum... -3.74
Clean R data frame so that in a column no row value is bigger than... -3.50
Computationally non tolling algorithm to find min and max of a vari... +4.07
increase in one variable nested within another column in R + settin... -0.07
R: Apply cut using row-specific breaks +0.87
Spline interpolation with R 0.00
fill values of a column with values from another column (but not on... 0.00
R: Applying a function between two dates +3.82
read csv +unicode in R +5.72
r return common rows for each value in a given column -0.13
Removing "" elements from a list in R -3.35
How to apply a function with if statement in ddply or any kind of a... 0.00
Merge matrices from two lists in R 0.00
R Solver Simple Minimizer +0.44
Create a list of matrices based on several conditions +4.58
Parse ISIN out of String +0.63
Calculate row-wise matrix cumsum from vector -1.11
Compare two dataframe colums and add them to the dataframe 0.00
Last 5 days average +4.62
find maximum id based on sequence spacing +0.75