tr | R Documentation |
Estimation of trace.
tr(y, tt, n)
This function is a sub-routine for model(), calculating trace of matrix
y |
data vector. |
tt |
time period length. |
n |
number of cross-section units. |
Hanse B. E. (1999) Threshold effects in non-dynamic panels: Estimation, testing and inference. Journal of Econometrics,93, 345-368.
Original code from Dr. Hansen (http://www.ssc.wisc.edu/~bhansen/).
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