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    -------- ESRI mapping functions --------

     arc_histmap function in histmap_function folder
    arc_histmap      : produce a map with histogram legend using ArcView shape files
    arc_histmapd     : An example of using arc_histmap()
    arc_histmapd2    : An example of using arc_histmap()
    arc_histmapd3    : An example of using arc_histmap()
    arc_histmapd4    : An example of using arc_histmap()
    arc_histmapd5    : An example of using arc_histmap()
    arc_histmapd6    : An example of using arc_histmap()
    arc_histmapd7    : An example of using arc_histmap()
    arc_histmapd8    : An example of using arc_histmap()
     Support functions for arc_histmap
    am_histcmap      : sets the colormap for the histmap figure
    am_histlegend    : compute legend figure for histmap
    am_histmap       : uses rubber band rectangle to select a sub-region of the histmap
    am_histncat      : sets the # of histogram bars in histmap
    am_histquit      : closes histmap figure windows
    am_histvariable  : sets the variable for use by histmap

     arc_moranmap function in moranmap_function folder
    arc_moranplot    : produce a map with moran scatterplot using ArcView shape files
    arc_moranplotd   : An example of using arc_moranplot()
    arc_moranplotd2  : An example of using arc_moranplot()
    arc_moranplotd3  : An example of using arc_moranplot()
     Support functions
    am_moran         : compute moran scatterplot figure
    am_quit          : closes figure windows
    am_selectmap     : uses rubber band rectangle to select a sub-region of the map

     cmex support functions in subfolder cmex, c-source is in the download zip files
     these are support functions, not intended to be called directly (but of course you can if you wish)
    dbffile_read   : reads an arcview (or other) dbffile and returns a results structure
    dbffile_readd  : An example of using dbf_read() cmex function
    make_map       : support file, constucts a map using structure variable returned by read_shape()
    map_demo       : Hardcore programmers example of using shape_read() and make_map()
    ahape_read   : reads an arcview shapfile and returns a structure
    shape_readd  : Hardcore programmers example of using shpfile_read() cmex function