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Jun 27, 2016 6:05 AM
(1741 views)

Does anyone has idea how to calculate the distance between states in the US using either zip code or latitude and longitude?

Jenkins Macedo

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Solution

why not start here?

and here

or just check my attached script for another option using a formula.

ron

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why not start here?

and here

or just check my attached script for another option using a formula.

ron

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Jun 27, 2016 7:21 AM
(1505 views)

Great! Thanks ron_horne. I initially started using tjhe Geocoder-Map. But I also see that I had SDA. I also downloaded the Distance Tool. All pretty cool. What I am trying to do is pretty simple and straight forward. Using the location by City and State- (zip code/ geographic coordinates) of our programs and the zip code of households in our databases. I am developing a simple file which shows programs that are under 50 miles of their residence compare to those that are 100 miles and proposed to the campaign team 2 to 3 programs that are either within an hour or two drive for a routine email marketing campaign based on their previous interests.

Jenkins Macedo

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Jun 30, 2016 11:56 AM
(1505 views)

Hi ron_horne I tried using you "Distance to next" script to calculate the distance between two pairs of Lat and Long coordinates, but the script isn't working or maybe I am not doing something right. Attached is the first 20 rows of the table table. I would like to know the distance (in miles) between HH Lat and HH Long to PS Lat and PS long. I think once I can get the formula fitted to my data, it can be faster. I am not so sure how the Distance Tool would work here as I am wondering if I have to draw a line for each coordinate as that would take too much time as my table has over 2 million rows or can that be automated. I used the Mapping: JMP Geocoder to generate the coordinates below. How would you ron_horne or some else customize these in Distance to next script posted previously? Any help would be appreciated. Thanks

Some information of the below variables:

Zip Code: is the matched household (HH) to the Progra Start Zip Code (PS).

Program Number: these numbers reflect programs we offer for which we would like to promote to those households within the same program-to-household zip code.

HH Latitude: Latitude associated with the Household zip code

HH Longitude: Longitude associated with the Household Zip Code

PS Latitude: Latitude associated with program start zip code. That is the location where the program started.

PS Longitude: Longitude associated with the program start zip code. That is the location where the program started.

Jenkins Macedo

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Jun 30, 2016 1:02 PM
(1505 views)

hi jenkins.macedo,

my original script calculated the distance between two consecutive rows in kilometers.

i have now amended it to produce the miles distance for each row.

try this on your table

Clear Globals**()**;

Names Default To Here**(** **1** **)**;

// reference the data table

dt = current data table**()**;

// introduce the column with the distance to be updated in the dots table

dt << **add multiple columns(** "Distance", **1**, after**(** **6** **)**, numeric **)**;

// extract the longitude and the latitude values from the table - as radians

HHx = **(**Column**(** dt, "HH Longitude" **)** << **getValues)** * Pi**()** / **180** ;

HHy = **(**Column**(** dt, "HH Latitude" **)** << **getValues)** * Pi**()** / **180** ;

PSx = **(**Column**(** dt, "PS Longitude" **)** << **getValues)** * Pi**()** / **180** ;

PSy = **(**Column**(** dt, "PS Latitude" **)** << **getValues)** * Pi**()** / **180** ;

// declare the calculation function in Miles

haversine = Function**(** **{**long1, lat1, long2, lat2, R = **6371}**,

**{**Default Local**}**,

a = Sin**(** **(**lat1 - lat2**)** / **2** **)** ^ **2** + Cos**(** lat1 **)** * Cos**(** lat2 **)** * Sin**(** **(**long1 - long2**)** / **2** **)** ^ **2**;

c = **2** * ATan**(** a ^ **0.5**, **(****1** - a**)** ^ **0.5** **)**;

d = **(**R * c**)*****0.6213712**;// miles

**)**;

wait **(****0.01)**;

// run the function along the rows of the table

For**(** i = **1**, i <= N Row**(** dt **)** - **1**, i++,

dt:distance**[**i**]** = haversine**(** HHx**[**i**]**, HHy**[**i**]**, PSx**[**i**]**, PSy**[**i**]** **)**

**)**;

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Jul 1, 2016 4:51 AM
(1505 views)

Thanks ron_horne. I will let you know the outcome once I tried it. But I think it looks great! Big tx

Jenkins Macedo