Sentence examples for using empirical variograms and from inspiring English sources

We evaluated the covariance structure using empirical variograms and found models were best fit as an autoregressive-1 correlation structure.

Such techniques rely, however, on the presence of spatial autocorrelation in the variable of interest and this was tested for in the cluster level ITN/LLIN coverage data using empirical variograms [Supplementary Information (SI) 1, available at www.ajtmh.org].

The spatially intensive sampling design provided information at a spatial resolution and extent that enabled exploration of spatial heterogeneity in fish assemblage structure and aquatic habitat at multiple scales with empirical variograms and wavelet analysis.

Randomly sampled networks of zones from this reference database were used to develop an empirical variogram and develop maps of zonal arsenic concentration for the Northwestern region.

The effects of local and trend spatial variation were assessed using a plot of residuals, the sample variogram, row and column faces of the empirical variogram, and REML likelihood ratio tests.

The combination, Yapp says, offers new ways to use empirical data to improve operational planning and decision making.

Data were analyzed using geostatistics (variograms and cross-variograms) in order to describe and quantify the spatial continuity of macrofauna characteristics and their relation to soil properties.

There are just a few examples of using variograms and SFs in neurosciences.

Residual spatial autocorrelation was assessed by using variograms, and residual temporal autocorrelation was eliminated by restricting models to 1 sampling interval (26 ).

Further, by adjusting the degrees of freedom for parameters and using different variograms, the median and mean of R are respectively 0.81 and 0.79 with the 95% confidence intervals of [0.77, 0.81].

The evaluated variogram using Eq. 4 is examined with reference to empirical variograms to choose the best fit mathematical model.