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cprange
2010 Jan 17
1
Confusion in 'quantile' and getting rolling estimation of sample quantiles
...gt; c=rnorm(500,0,1)
> quantile(c,0.8)
80%
0.9986075
why do the results display different? Is that because of the different type
of the class?
2).And I want to use the 'rollapply' function to compute a rolling
estimation of the sample quantile.
the command i used is below:
> uprange=rollapply(x,width=10,FUN=quantile(x,0.8),align='right')
Here the 'x' is the one generated above in 1).
And the R told me:
"mistakes in match.fun(FUN) :
'quantile(x, 0.8)' is not a function, character or symbol"
Can anyone help? Thank you in advanced.
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