I have a time series of 1095 data corresponding to a daily data of three years.
I want to know how to use ma(timeserie, order=??, centre=??) to detect the
trend:
which order is suitable and what is the difference between centre= true or
false.
How to avoid these errors:
1-Error in timeserie - trend :
argument non numérique pour un opérateur binaire="non-numeric argument for a
binary operator"
timeserie:
Mean
1 3874.000
2 3869.000
3 3885.000
. .
. .
. .
trend:
[,1]
[1,] NA
[2,] NA
[3,] NA
. .
. .
. .
2-m = t(matrix(data = detrend, nrow = 30))
seasonal = colMeans(m, na.rm = T)
Error in colMeans(m, na.rm = T) : 'x' doit être numérique=" 'x' must be numeric"
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