#Geodist in stata code

I, doing computations involving variables > For every observation i, I think I need to > loop over all observation and sum up the results. > latitude for each observation, and computation of the distance from any > distances between observation i and all j n.e. > The variable created is a weighted sum of the inverse of geographical > I have need to use information from all observations (about 1800 of > running sum, take a look at -help sum(). > If you want the total of a variable, look at -egen, total(). > the easiest is simply to -generate- a sum by adding values with a '+' > Creating sums can mean different things in Stata. sum up the results of these computations,'. > to all other observations (or more generally, to some set of other > observation, the sum I'm talking about is of measurements made relative > Thanks, I guess I was unclear on this aspect of the problem. > To: Subject: st: RE: RE: AW: Creating index relative to other observations Geodist lat lon `=lat' `=lon' if _n != `i', gen(d) * This example require my -geodist- program available on SSC Is then updated with the value of the sum plus the value of x2 for Values for variable x1 are adjustedĪccording to the distance to `i' and summed. Each time, it calculates theĭistance from observation `i' to all others (distance will be missingįor the observation `i'). Perhaps the following example is close to what you are trying to do.

To: Re: st: RE: RE: RE: AW: Creating index relative to other observations

If I just stack observations type i on top of observations type j, geodist doesn't like the missing values (observations type i have missing values for type j, and vice versa). For each location of type i, I need to compute the distances to every location of type j.

#Geodist in stata code

Robert Picard sent the code below, which works as advertised - many thanks, Robert! Now I have a slightly different problem: I have two kinds of locations in the data, i and j. Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at.