Rui Barradas

Rui Barradas has asked 2 questions and find answers to 226 problems.

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Rui Barradas questions

What can R do about a messy data format?

Rui Barradas answers

Find the x that gives a specific value of a function
How to count Occurrences in a cross table in R?
Increase by one for each change in group in R
regression line passing through a given point
Find binwidth of Histogram plotted using ggplot2
How do you retrieve the estimation sample in R?
Plot multiple plots that were NOT created using ggplot in a row / grid
extract string before dash in R
In R, how can I extract all the text up to the left parenthesis?
how to coerce a data.frame into a sparse matrix in R