Matlab has a lot of capabilities for interacting graphically with data sets. Let's consider a dataset that contains ratings for different cities in different categories, such as health and climate. We suppose there could be a correlation between these two ratings and we want to check that.
Watch the video: http://screencast.com/t/PeIzxp3n
clear ; close all; clc load cities % Matlab example data set
climate = ratings(:,1); health = ratings(:,3);
plot(climate,health,'ro') xlabel('Climate rating') ylabel('Health rating')
gname(names) % categories: plotting % post_id = 1431; %delete this line to force new post; % permaLink = http://matlab.cheme.cmu.edu/2011/11/11/interacting-with-labeled-data-points/;