@HaomingJiang
2016-05-29T20:36:18.000000Z
字数 737
阅读 1676
数据挖掘导论
笔记
frequency mode percentile mean(trimmed mean) median
range variance standard-deviation
absolute average deviation,
median absolute deviation,
interquartile range,
mutivariable:
covariance matrix
correlation matrix
skewness
1.mapping the data to graph
2.arrangement
3.selection
technique
1. with a few variables
stem and leaf plot
histogram
box plot
pie chart
scatter plot
2. with temporary and spacial data
contor plot
surface plot
vector plot
slicing
animation
3. with high demensions
matrix
parallel coordinates
icons
ACCENT Principle
data cube
pivoting
slicing
dicing
roll up
drill down