Homepage of Armando Vieira

Data Scientist, Entrepreneur and Speaker

07
JAN
2013

Big Data Visualization

Some resources for data visualization: This is using R for following the evolution of retweets of hashtag #BankTransferDay. http://www.r-bloggers.com/how-to-network-animation-with-r-and-the-igraph-package-meaning-in-data-viz/
07
JAN
2013

Adwords

Just finished a really interesting examples on adwords optimization using R. This is the ROC curve for the SVM regression of predicting the conversion rate. An AUC of 0.89, which is not bad.
05
JAN
2013

Google charts and R

Producing some beautiful graphs  using a package from R. The code is below. See the results here: http://insights4.me/tourism install.packages ("googleVis") library('googleVis') getWorldBankData function (id='SP.POP.TOTL', date='1960:2010', value="value", per.page=12000){...