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Jaap

Rating
1662.99 (393rd) 		Reputation
58,717 (1,592nd)
Page: 1 2 3 4 5 6 7 ... 23
Title Δ
Repeating elements in a vector with a for loop +1.04
How to get all my values within the same categorie to be equal in m... +0.36
Extracting n rows above and below a given row number (variable n) 0.00
Partitioned dataframe / reshape and stacking -0.21
Find a sequence of numbers in a vector -0.52
Find a sequence of numbers in a vector +0.63
Condense Duplicate Rows into Unique Rows with if +1.47
Dummyfication of a column/variable +0.54
Categorize data sequences continously +0.29
Labelled multi-level pie chart -2.56
How to subset sample satisfy conditions throughout the entire sampl... 0.00
Rolling join by condition 0.00
Match data to nearest time value by id +0.69
Finding the median of a range of values from one column based on th... +0.89
Create new variable based on function of other variables +0.81
Find the length of a succession of the same value -1.74
Using lead/lag with multiple variables in data.table -1.91
Using dplyr to summarize and keep the same variable name +0.88
join/merge data frames in R 0.00
Filtering rows in a dataset by columns -1.94
Modifying data.table columns by index 0.00
Find the frequency with weight 0.00
How to make type-stable function that selects subset of data.frame 0.00
Filling table column by matching several rows from different tables... +1.17
Find overlapping ranges in a dataframe and assign them values 0.00
Replace values for columns in dataframe by external numeric vector -1.00
How can I put the labels outside of piechart? +0.30
How to reorganize data in columns into new columns by categories +0.28
Count occurrence of a value within a data frame within the rows abo... -0.84
Find previous larger occurrences in data.table +1.79
Compare and replace frames/tables specific rows 0.00
Assign by reference a list of results to a number of columns of a d... 0.00
How to vectorize modulo? 0.00
Factor with comma and percentage to numeric +0.29
How to Delete Every Row&Columns Which Contains Negative Value 0.00
Creating piechart from a count column with percentage as labels 0.00
Produce new columns based on priority list +1.07
Producing a random sequence of number... 30 times +0.21
How can I identify the N columns with the largest values for each r... -2.22
Identify duplicate values and remove them +0.30
grepl across multiple, specified columns +1.42
Sorting just one column after grouping it +0.31
Merging Items each with 2 Rows for calculations specific to Item... -1.83
Combine and average each 15 data.frames from a list +0.27
Reshape data frame by id and variable type +0.99
If loop calculation to all records +0.28
Summarise all values of a column into a vector +1.33
Rolling sum with a conditioned window +0.30
Merge for all "occurrences" of a non-key variable +1.72
Removing similar but longer duplicates from vector -0.57