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KFB

Rating
1550.10 (7,913th) 		Reputation
3,143 (53,730th)
Page: 1 2 3
Title Δ
count duplicated columns in R 0.00
How could I reduce a dataframe in R with aggregate (or similar) to... -1.42
r aggregate dataframe: some columns unchanged, some columns aggrega... +0.43
Joint Probability: How do I find the proportion of incidents when s... 0.00
New behavior in data.table? .N / something with `by` (calculate pro... 0.00
More effective merging of matched column with duplicates in data.ta... -0.86
Extracting and Printing multiple elements from different vectors in R -0.09
What's wrong with merging multiple geom_rect()? -0.20
compute a Means variable for a specific value in another variable 0.00
can't add geom_hline() with dataset of different length 0.00
How to do histogram with the sum of value of a column in ggplot2? +1.25
write.csv changes the data in R 0.00
For i in loops in R -0.32
R plotting a graph with different groups of data -0.59
Merge dataframes in R by date and a second variable -1.90
merging two daily time series with overlapping dates 0.00
How do I combine multiple observations for a given variable using R? -2.17
More elegant way of transforming data frames from wide to long data... -1.14
data.table computing several column at once -1.34
Use ggplot to compare different interpolation method 0.00
R: how to add row name to a data frame? -0.43
How to replace a character column and insert a new column with bino... +3.53
How to fill whole pie chart in facet wraps without using scale = free 0.00
Query data from another data frame for new column in r -0.82
remove rows by reference to column values in data.table r -3.09
There is data in R package and I want them to save in excel.How I c... -5.19
Delete all rows where value in a column does not match value in col... 0.00
Plotting time and date in different axis in R +3.16
Indexing a vector by an array in R -4.50
Finding value in one data.frame and transfering value from other co... +3.24
Changing column names in R by name not by number +0.62
How do I add a column and change this column to a dummy variable? +3.55
why is this if-else not working? -0.45
comparing the value of the first column of two dataframe to find th... 0.00
How to return nrow per group in R? +0.35
filtering a dataset dependant on a value within a string +2.45
Calculating Percent of a value within a row 0.00
How to sum up the duplicated value while keep the other columns? +0.65
Sum a rows within a column for each unique combination r +0.41
SQL Commands for Statistical Modelling +0.66
Data Frame in R use like SQL, possibly using sqldf() +3.45
change a column from birth date to age in r -0.89
R data frame equivalence of SQL join and select +3.58
Grouping dates by Periods in R -0.55
efficient way to change the colnames of data frame with a lot of co... 0.00
R order() "returns a permutation" -2.66
String processing in R (find and replace) +3.87
Sorting and ploting problems in R +4.01
Transform a pairwise set of values into a matrix -4.20
Categorical Survey Analysis - data structure problems +3.41