[ai-geostats] questions of variogram

2004-06-07 Thread Chunhua Zhang
Hello list, I calculate variogram with my field data (21 quadrats in each plot). And I find that experimental variogram fluctuates around a constant value and has very high nugget. It may be due to the reason that the sample interval is too big. Are there any other reasons? Actually I

Re: [ai-geostats] problem regarding variogram

2004-06-07 Thread Isobel Clark
snehamoy when you say positively skewed do you mean skewed to the left or to the right. If you calculate the skewness coefficient, postive is skewed to the left with a long tail to the right. If your data is skewed to the right, it is negatively skewed. For negative skewness, we have had