Re: Applying data from a database link to a GraphPlot
- To: mathgroup at smc.vnet.net
- Subject: [mg131132] Re: Applying data from a database link to a GraphPlot
- From: Tomas Garza <tgarza10 at msn.com>
- Date: Fri, 14 Jun 2013 04:56:35 -0400 (EDT)
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- References: <20130613063835.7C7166A65@smc.vnet.net>
The example you provide is not a very interesting one, since each of the pairs is disconnected from the rest. To illustrate the point, though, I modified some of the pairs and added some others to obtain the list: labs = {{"PENELOPE", "GUINESS"}, {"JOE", "GUINESS"}, {"JOHNNY", "WAHLBERG"}, {"ED", "CHASE"}, {"JENNIFER", "DAVIS"}, {"JOHNNY", "LOLLOBRIGIDA"}, {"BETTE", "NICHOLSON"}, {"LOLLOBRIGIDA", "MOSTEL"}, {"MATTHEW", "JOHANSSON"}, {"JOE", "JOHNNY"}, {"CHRISTIAN", "GABLE"}, {"BETTE", "WAHLBERG"}, {"JOE", "JOHANSSON"}, {"GABLE", "JOHANSSON"}, {"GUINNESS", "WAHLBERG"}, {"ED", "JOE"}, {"JENNIFER", "MATTHEW"}} Then you obtain the graph plot with labeled vertices: GraphPlot[Table[Rule[labs[[j, 1]], labs[[j, 2]]], {j, 1, Length[labs]}], VertexLabeling -> True] -Tomas > From: ppksky at gmail.com > Subject: Applying data from a database link to a GraphPlot > To: mathgroup at smc.vnet.net > Date: Thu, 13 Jun 2013 02:38:35 -0400 > > This is my first project and I am trying to import data from a MySQL query into a GraphPlot expression. > > A return from MySQL (Sakila is the example here) > > SQLExecute[conn, "SELECT first_name, last_name FROM actor LIMIT 10"] > > {{"PENELOPE", "GUINESS"}, {"NICK", "WAHLBERG"}, {"ED", > "CHASE"}, {"JENNIFER", "DAVIS"}, {"JOHNNY", > "LOLLOBRIGIDA"}, {"BETTE", "NICHOLSON"}, {"GRACE", > "MOSTEL"}, {"MATTHEW", "JOHANSSON"}, {"JOE", "SWANK"}, {"CHRISTIAN", > "GABLE"}} > > (This is not the intended data, just a sample of the output.) > > But GraphPlot uses inputs of the form, > > GraphPlot[{"d" -> "c", "e" -> "b", "e" -> "c", "e" -> "d", "f" -> "a", > "f" -> "b", "f" -> "d", "f" -> "e", "g" -> "a", "g" -> "b", > "g" -> "c", "g" -> "e"}, VertexLabeling -> True] > > Is there some way in place of converting the output of a data query to the input of a graphplot? I see that an adjacency matrix is an optional input, but I'd also want to use labels generated from the database. >
- References:
- Applying data from a database link to a GraphPlot
- From: Paul Pikowsky <ppksky@gmail.com>
- Applying data from a database link to a GraphPlot