Dennis J.  Low
Hydrologist
U.S.Geological Survey - WRD
215 Limekiln Road
New Cumberland, Pennsylvania 17070
(717) 730-6959





I have been running censored Kendall on Minitab, 
and more recently on R because of the large data 
size (about 4,000 samples). I have begun to 
compare the two results and am confused about why 
the results do not agree. Listed below are two 
runs for each method on the same dataset where N 
= 1447:

Results from R

slope  [1] 6.527546

intercept  [1] 162.4725

tau  [1] 0.08137884

p  [1] 2.356061e-06

True = censored data
False = non-censored data

Results from Minitab
S       -6875.00
tau     -0.00657152
taub    -0.0108607
z       -0.457711
pval    0.647160

1 = censored data
0 = non-censored data

Why don't they agree on anything?

I was surprised that R does not present a taub 
which I believe takes into account ties.

I thought p and pval were basically the Pearson's 
result which indicated significance.

What else am I missing?


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