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Jaap

Rating
1662.99 (393rd)
Reputation
58,717 (1,592nd)
Page: 1 ... 13 14 15 16 17 ... 23
Title Δ
R: Using data.table inside the function of apply() +1.78
unique values of one column for unique values of another column +1.29
Extracting html table with rowspan values +1.06
subscript out of bounds error datatable 0.00
Subset a data frame by randomly selecting values based on two columns 0.00
How to recreate the table by key in R? 0.00
Manually creating a legend when you can't supply a color aesthe... 0.00
How to group by different columns and find the percentage based on... 0.00
Frequency of rows by ID +1.22
R merge.data.frame: probabilistic result for ambiguous keys 0.00
extract numbers/ characters out from the same string of different f... 0.00
Divide vector into groups according difference between two neighbou... +1.26
Create multiple rows of data from one row of data and column value -0.58
Need to change data.table columns' value from "Yes" ,... +0.43
What is the elegant way to select n latest (by date) entries in dat... +2.25
"object 'ansvals' not found" error - what does it... +2.36
Renaming multiple factors simltaneously with data table 0.00
How to get a list of built-in data sets in R? 0.00
How to set multiple columns and selected rows in data table to valu... 0.00
Break data.table chain into two lines of code for readability 0.00
Absolute position of geom_text in a geom_bar (ggplot2) 0.00
partial self-join by group +0.43
ggplot with full data and subset(s) along x-axis 0.00
putting two different legends in two columns in ggplot2 0.00
Look up values from one data.frame in another data.frame and add ot... 0.00
R convert unstructured csv file to a data frame -1.25
Fix misaligned rows after converting PDF to text using R tm package +0.47
How to get the top cases for each group using dplyr? +0.29
How can I add mean labels to a bar chart? 0.00
How to cleanly use interpolation between points to generate a mean... -0.51
Speed up vector-creation +0.19
Conditional replacement of string with another string 0.00
Spreading a two column data frame with tidyr -0.10
How to read nested JSON structure in R? +0.44
Programmatically plot sub events of top events using ggplot: R 0.00
How to keep the order of stacks in ggplot using stat='identity&... 0.00
R - customizing legend in ggplot2 to add geom_vline() component +0.45
Is there a dplyr equivalent to data.table::rleid? +1.64
Trouble getting stat_ecdf legend line color to match plot color, an... 0.00
Add frequency to transformation table -0.70
Add column name for every row in data frame +0.57
Match from different data sets in R +2.43
Indexing sequence chunks using data.table 0.00
How to get characters before a specific character in R 0.00
Change ggplot legend title -2.49
Conveniently exporting high resolution map with sensible font and l... 0.00
How to rename levels in an R data.table from another data.table? +0.47
matching dataframes with data.table +0.45
Format latitude and longitude axis labels in ggplot 0.00
ggmap, using coord_cartesian pushes all points to the north 0.00