Quantitative Methods and Applications in GIS - Chapter 11 (end) pps

... 8, 291–307. Batty, M. and Xie, Y. 1994b. Modeling inside GIS. Part II. Selecting and calibrating urban models using arc-info. International Journal of Geographical Information Systems 8, ... forward-elimination ) phase and a solution (involving updating and back-substitution) phase (Kincaid and Cheney, 1991, p. 145). Computation routines for the algorithm of Gaussian elimi...

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... to D Line Point For each point in D, find the closest line in S, and transfer attributes of that line to D For each point in D, find all lines in S that intersects it, and transfer the lines’ ... during the proof-review stage, I used some of the projects in the workshops on GIS- Based Quantitative Methods and Applications in Socioeconomic Planning Sciences” in Tsingh...

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... implying 149 unique origin nodes. 4. Defining INFO files for origin and destination nodes: This step prepares two files to be used next: one contains all origin nodes, and another contains all destination ... Manhdist, and calculate it as Manhdist = abs(x-coord - point-x)/1000+abs(y-coord - point-y) /1000. The computed Manhattan distances are in kilometers and are always larger...

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... interpreted as a meaningful ratio like Tairatio in the FCA method. 3.3 POINT-BASED SPATIAL INTERPOLATION Point-based spatial interpolation includes global and local methods. A global inter- polation utilizes ... value at point i. Thin-plate splines tend to generate steep gradients (overshoots) in data-poor areas, and other methods such as thin-plate splines with tension, regularize...

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... decreases, and thus d 1x increases and d 2x decreases, indicating that a larger store is expanding its trade area. 2. If , i.e., , increases, and thus d 1x decreases and d 2x increases, indicating ... Basic Quantitative Methods and Applications 2795_S002.fm Page 265 Friday, February 3, 2006 11: 58 AM 55 4 GIS- Based Trade Area Analysis and Applications in...

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... Group, LLC 82 Quantitative Methods and Applications in GIS The method can be implemented in ArcGIS using a series of join and sum functions. The detailed procedures are explained in Section 5.4. 5.3 ... 2006 by Taylor & Francis Group, LLC 96 Quantitative Methods and Applications in GIS Rearranging the terms, we obtain Denoting the total supply in the study...

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... Francis Group, LLC 114 Quantitative Methods and Applications in GIS 7. Nonlinear and weighted regressions in SAS: Nonlinear and weighted regression models need to be estimated in SAS. A sample ... Group, LLC 118 Quantitative Methods and Applications in GIS higher R 2 than the linear counterpart using both the tract and township data. The nonlinear regressi...

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... –0.7591 5 5 1 9 5 2 1 5 5 5 5 5 1 2 3 5 2 1 3 5 5 5 5 2 1 2 1 1 5 5 1 1 5 2 5 2 5 5 2 1 3 1 2 4 6 2 4 4 4 1 3 4 2 1 4 4 4 5 4 1 1 4 3 2 2 2 4 6 6 2 4 1 1 1 2 6 7 4 2 4 2 6 2 2 5 2 4 1 4 2 4 6 3 4 6 4 6 8 2 7 6 1 1 4 4 4 Legend Sub mod-den Inner sub mod-inc Outer sub mod-inc Inner city mod-inc Outer sub mod-inc Inner city low-inc Inner city high-inc Inner city ethnic Outer sub float pop 6 2795_...

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... 1, 6, and 8 are all local maxima, as all the links are pointed inward there. In step 4, both polygons 2 and 3 point to 1, and they are grouped into cluster I; polygons 4 and 9 point to 5 and then ... two boxes for showing and saving intermediate results, and name the shapefile identifying the local minima and local maxima and the shapefile for link directions and types. Fi...

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... (containing location ID and number of cases in each location), a control file (containing location ID and number of controls in each location), and a coordinates file (containing location ID and ... be divided into point- based and area-based methods. Point-based methods require exact locations of individual occurrences, whereas area-based methods use aggregated disease rates...

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