Version 1.0.2
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- enable users to input estimates in prediction
- add function plotgc for a general geostatistical plot
- bugs fixed



Version 1.1.0
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- Combine classes marginal.gc1 and marginal.gc2
- Combine classes corr.gc1 and corr.gc2
- Now specifying marginals and correlations in simulation and fitting are united
- bugs fixed in plotting the simulated data
- Documentations changed accordingly
