Title:
用R做了HP滤波，但不知道如何把cycle的数据弄出来做分析，求大神指点

Hodrick-Prescott Filter

Call:
hpfilter(x = gdp, freq = 10000)

Method:
hpfilter

Filter Type:
lambda

Series:
gdp

       gdp   Trend    Cycle
1    977.0   525.5  451.457
2    892.8   592.6  300.226
3    834.9   659.6  175.250