João Daniel

João Daniel has asked 32 questions and find answers to 8 problems.

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About

I'm a BA statistic's student at UFMG (Brasil), and co-founder at Tecto - a startup in the data analysis field. I've experience in programming (C, Java, HTML, CSS, Ruby, RoR) and data analysis.

João Daniel questions

RSpec isn't generating spec files for my models and controllers
Place centered text between navigation buttons from Twitter Bootstrap
Keep record of login time and session duration - Java - Spring Security
How to test controller with Rspec - #show action
UI design with GWT
Get more information from User - Spring Security
How to change axis-label color in ggplot2?
Loops in R - Need to use index, anyway to avoid 'for'?
Create Hash iterating an array of objects
Automate zip file reading in R

João Daniel answers

How to convert continuous variable to discrete in R?
Ignore outliers in ggplot2 boxplot + faceting + "free" options
Taking a disproportionate sample from a dataset in R
Forecasting time series data
Control number of decimal places on xtable output in R
How to load packages in R automatically?