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re: st: formatting latitude and longitude variables with

From   Christopher Baum <>
Subject   re: st: formatting latitude and longitude variables with
Date   Fri, 2 Apr 2010 14:10:36 -0400


In the syntax diagram, common with all syntax in the Stata manuals and on-line help,

    sphdist [if exp] [in range], gen(newvar) lat1(varlist) lon1(varlist)
        lat2(varlist) lon2(varlist) [ew1(varname) sn1(varname) ew2(varname)
        sn2(varname) radians radius(number) units({km | mi | naut}) thin]

Items within square brackets [ ] are optional. Thus everything after lon2(varlist) is optional. The lat1, lon1, lat2, lon2 are "non-optional options".

Kit Baum   |   Boston College Economics and DIW Berlin   |
An Introduction to Stata Programming   |
An Introduction to Modern Econometrics Using Stata   |

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