hello1-i'm going to work with colash data following nested spatial model that
in statistical method for spatial data analysis (oliver_schabben berger
page150) .i devided data to 3 subgroups.i have fitted varigram model to every 3
subgroup. and also i have calculated covarianc matrix of them. but this matrixs
havn't same dimention .and i coud not caculate $(4.23) of this page. what can
i do ?
2-I have regular lattic data (wheat_yield ,page 434 of cerssi 1993, statistic
for spatial data) when i have calculated the kriging ,unfortunatly the
covariance matrix is 0 i'm going to work following method on the book for
this data .what can i do?thank's in advance for your help and time.
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