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Rui Barradas

Rating
1524.32 (24,788th)
Reputation
18,865 (7,330th)
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Title Δ
Restructuring messy data with unequal columns in R 0.00
How to group_by with date range +0.22
Look up value in data frame from a single vector -0.50
Text in barplot in R +0.34
How to ggplot Lists of Lists +0.50
Subsetting time series data by 3 days and saving in the list +0.27
R - return n matches via levenshtein distance 0.00
Replace a string across entire dataframe -0.22
Using a loop to find P(-1.5<Y<1.5) for a range of sample sizes 0.00
How to represent time intervals in R 0.00
Subset n rows of each level based on the level with fewer rows +0.29
I created a R function that includes for loop inside and return() f... 0.00
Creating a binary variable conditioned on values in another table i... -0.24
R as.POSIXct try two input formats 0.00
Passing function argument as string stored in variable -1.66
Modify the date in a data frame in R -1.72
Access components of a list of data frames for use in loops in R 0.00
Calculating car acceleration from recording time and speed in R 0.00
If date is on Sunday, then change date to the following Monday +0.51
Cumulative sum of consecutive values -0.01
how do you find two different characters (say N and Z) in a given w... 0.00
Drop ID with NA in a conditional group +0.51
How can I evaluate a C function from a dynamic library in an R pack... 0.00
Read multiple csv files in several directories in r 0.00
Vectorization of matrix operation in R matching string patterns -0.90
R: Separate string based on set of regular expressions 0.00
How to resolve "number of items to replace is not a multiple o... -1.61
R gsub/str_replace to return a backslash -0.50
Read tab seperated data set with errors -1.96
Plot two vectors selected from two different data.frames 0.00
Else if to create a new variable DEBUG -2.31
How to change rownames by one position -0.03
Average of n values in column in R - repeat -0.12
Regex - Split String on Comma, Skip Anything Between Balanced Paren... -0.76
How to sum values in rows that have target values in two columns? +2.00
Apply common header names to all files in the folder 0.00
Build R Function that intakes a directory where the files are store... -0.01
Use a dataframe as a correspondance table +1.58
Exclude some columns from adding a suffix in R 0.00
How to create two variables that rely on each other and on other va... 0.00
How to remove rows that contain identical pairs in opposite order i... -0.13
Filter data, remove entire dataframe -1.17
Determining P values after using cor function to test significance... -0.53
R barplot color by column while keeping the dataframe order +0.43
How to delete duplicate records from dataset based on max date in R? 0.00
Looping on R with data extratcted from web site 0.00
Multiple Layers in ggplot2 0.00
How to correctly use group_by() and summarise() in a For loop in R +0.99
How to scale variables with wide ranges and display the same in a s... +0.48
How to repeat codes changing the variables in a sequence in R -1.28