eda-script.R: adding codes for eda of ethnicity
eda-script.R: adding codes for eda of ethnicity

haoliangsky1/stat159-fall2016-proj3,haoliangsky1/stat159-fall2016-proj3,haoliangsky1/stat159-fall2016-proj3,haoliangsky1/stat159-fall2016-proj3