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Rating Stats for

Ricardo Saporta

Rating
1533.06 (16,004th) 		Reputation
41,631 (2,640th)
Page: 1 2 3 4 ... 16
Title Δ
file from where function was sourced 0.00
How to cbind a discrete factor to a large matrix -1.90
How to create mean and s.d. columns in data.table +2.22
Sum by group with multiple logical conditions while omitting values... 0.00
NA matches NA, but is not equal to NA. Why? -0.55
how to reshape into multi-level, multi-ordered wide data using dyna... +0.43
Save different csv files as one excel workbook with multiple sheets 0.00
mathematical operations on data.table(in R) 0.00
How to load big data in R? 0.00
Setting an option to NULL +0.76
R which statement not selecting string appropriately -1.86
How to use a 'for' loop with a subset of shuffled data in R 0.00
Handling paginated SQL query results +0.19
Startup script in Rprofile throws 'function not found' errors -0.71
caching plots in R/Shiny 0.00
Matrix diagram in r +1.74
Perform multiple operations on multiple data.tables +0.51
How to find the minimum of a data.frame according to the value of a... 0.00
Bubble Plot of Negative and Positive values in space ggplot2 R 0.00
Turning a couple of vectors into a list of vectors +2.18
What's wrong with this variable in my data frame? -0.56
Function for sampling between duplicated values in data.frame -0.06
How to create bar and line chart in one chart using ggplot -0.46
error in aaply function when applied to data.table 0.00
R data.table merge gives different results depending on subsets -0.04
How to simplify sub functions' arguments in R? -1.58
rbind and overwrite duplicate rows based on key variable? 0.00
How do make a subset based on 2 criteria in R? -1.07
Using .I to return row numbers with data.table package 0.00
Using RODBC with long SQL query 0.00
aggregate and transform a dataset -0.22
String reformatting with levels , I am stuck -2.14
How can I subtract 2 dataframes of different length by searching fo... +2.54
Given a list of n 4x4 matrices, how do I combine them such that the... +0.45
Reshape in R without aggregation (for example MTurk response strings) +1.22
R - argument length is zero 0.00
Data Tables in R: manipulating a column with/without a subset filter 0.00
Is there a way to get residuals/fitted values for a Holt Winter fit... +0.46
identify unique entry list of a list -0.13
adding rows to data.frame with mixed data format 0.00
Logical Test in R - Alternative to While Loop 0.00
How can I reshape a data.table or data.farme in R without adding up... +2.17
unsplitting a data frame by a variable (different length of factors) +0.46
R - compare rows consecutively in two data frames and return a value -0.01
Merge rows within a dataframe by a key +2.48
Output function results to multiple files in r? 0.00
R: subsetting N-dimensional arrays +2.73
R: Displaying calculations in graph title 0.00
Find the max values within range then return the column name of tha... -0.35
all.equal on object with NULL names causes 'Error: not compatible w... 0.00