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Rui Barradas

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1524.32 (24,788th) 		Reputation
18,865 (7,330th)
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Is there an R function to select one variable from each group (grou... +0.37
Density over histogram using ggplot2 0.00
R language | sodium | cyphr | How to save and transfer a KEY 0.00
calling the glm() function within a user-defined function -0.80
Merge data frames without Merge Function +0.52
Reorder dataset following Multiple qualitative criteria (Alphabetic... 0.00
How to use 'quantmod' to get yahoo FX rate for a specific d... 0.00
Add original values for columns after group by +1.69
Calculating the number of common occurrences ,and values in a categ... 0.00
t test in a data frame in R using mutate 0.00
How to repeat the For loop in r? 0.00
Ggplot not reordering variables; warning messages requires estimate... +0.46
Run functions stored in a list based on criteria +1.80
Gini coefficient in panel data 0.00
Convert all empty & fields marked with "N/A" as NA in R -2.30
R - make a unique list of two columns interchangeably +0.44
How to combine a column from a xts zoo object to a table object? 0.00
period day in R 0.00
How to remove rows where there is a zero or NA in the in specific t... -0.92
How to write a linear regression with an expanding window in R (no... 0.00
How to split a date range in 5 days chunks for many years? 0.00
"unused arguments" error when using a method +1.93
How to check If file exists in the url before use download.file in R 0.00
Change name of factor with dplyr +2.43
How to hide a single key in R? 0.00
R's paste function equivalent in BASH? -2.03
Split a dataframe based on a column and write out the multiple spli... 0.00
Adding descriptions to items of a list in R 0.00
Calculating time duration from two time values with no date in R 0.00
Creating new columns based on certain strings appearing in a variab... +0.43
How to replace all strings in a column in R? -0.08
tidyr Pivot-wider: Duplicate issue 0.00
Renaming integers within a data.frame -0.22
Scoping issue occurring when looping through a tryCatch block in R 0.00
How to add arrows to scatterplot in r? 0.00
How to get rid of anomalies using lapply in R 0.00
Pattern matching using regex for messy file names +1.57
How to apply several functions on every possible row combinations w... +1.33
How to replace NA with set of values -0.85
How to use tryCatch() during bootstrapping with modelr/tidyverse? 0.00
How can i fill this matrix (then generalize it to an 3D-array) whit... 0.00
Eval very large factorial in R -2.04
Writing R code that calculates age of a person if he/she is still a... -0.04
How to write a function in r which plots data for each unique value? 0.00
Remove rows that contain different letters or missing data for two... +2.24
Unable to re-read file despite seek() +2.00
How to use mutate() with a Date_Time month/Day/Year 00:00 in R 0.00
X axis and right box in stacked bars -0.00
R: Change rows in dataframe if value repeats after n elements -1.70
Calculating the log-likelihood of a set of observations sampled fro... 0.00