# spatial

1. ### HELP: Using Data on Different Spatial Scales for Econometric Regressions

*Background: Using a Production Function in form of Autoregressive Regression Model for Regional Perfomance* Hi, This question is more of a theoretical nature. I have dataset that comprises all data on municipality level (n=290). However, due to data restrictions one variable, "self...
2. ### Sample size estimation for multinomial autocorrelated data

I'm trying to work out the minimum sample size needed to accurately characterise land cover data. The idea is to set out the a number of quadrats across the study site and identify what land cover type occurs in each. I have an idea as to how many categories there should be. So this is a...
3. ### Longitude Latitude Time Series Plot

Hi All! I have been looking to find a package that will allow to plot time series longitude/latitude in a map with density and connecting lines. For example, if t=1 for (lon1,lat1) then circle of diameter 1 is plotted at lon1, lat1. if t=3 for (lon2,lat2) then circle of diameter 3 is plotted at...
4. ### Non-parametric repeated measures guidance needed

What I am studdying is Aspergillosis (a disease) -it is caused by the terrestrial soil fungus called Aspergillus sydowii - of the sea fan Gorgonia ventalina. What I know so far: 1) My data is non-parametric....Residuals are not normally distributed and transformations do not help. 2)...
5. ### Optimization problem - I need a flat floor!

Okay, so my concrete floor is not level - there are high spots and there are low spots. My goal is to achieve <1/8th inch difference between any two spots within any 10 foot radius. What I have is elevation measurements across the entire floor, at every 6 inches along the Y and the X axis...
6. ### Spatial Econometrics - Bias?

Dear all, I seem to be lost with the following problem in spatial econometrics: Assume the true model is a spatial error model (SEM). It is well known that using OLS for estimation is inefficient but still unbiased. Now, when I compare my OLS vs. SEM estimates in R, say, they are quite...
7. ### Correlation of Spatial Data

Hi, I have 2 data sets X1 and X2. Both data sets contain various entries of geo spatial data (latitude and longitude). X1=[lat1,lon1; lat2,lon2; lat3,lon3; ....] X2 is just like X1 but different values. X1 and X2 are different in length. Now I need to find the spatial correlation...