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关于R中“could not find function”的问题
8 个回复 - 47485 次查看
新手问个初级问题,还请各位不吝赐教。
首先我想模拟一个Y(t)=0.75Y(t-1)+e(t)-0.75e(t-1)的方程,google了一下,给出的列子是:
## armaSim -
# Simulation:
x = armaSim(model = list(ar = c(0.5, -0. ...
2011-3-22 04:15 - 白下 - R语言论坛
Error: could not find function "backtest"
3 个回复 - 10472 次查看
Dear
The code I copied from http://faculty.chicagobooth.edu/ruey.tsay/teaching/introTS/ch3Rscripts.txt and output are as follows
Coulld you please help fix the issue such as[Error:
could not f ...
2014-1-10 02:59 - Trevor - R语言论坛