Irina: With your map window open, add to the active map an additional layer for census tract polygons. The ccdata library of geo data that installs with the program has a file "ccTract_H" which is the national file of 2000 census tract polygons. Once that layer is included in your map project, change the active layer back to the layer which contains the addresses that you have geocoded and that you want to assign to a corresponding census tract. Go to the dataview for that layer and highlight the column for the census tract value and right-click on the selected column. Select "Fill" and then select the Tag function. Choose the "ccTract_H" layer as the reference layer for the "tagging" operation and further select the field which is the census tract number. Select OK and Maptitude will assign the census tract value that surrounds each geocoded address point and store that tract number in the tract field.
I hope that clarifies how to perform the tagging operation ..see "Tag Points by Area" in the Maptitude user manual for step-by-step. Kevin Byrnes GWRC From: [email protected] [mailto:[email protected]] On Behalf Of Lericrew Sent: Wednesday, November 02, 2011 10:08 AM To: [email protected] Subject: [Maptitude] Re: how to map data Hi Kevin, Could you please be more specific? I geocoded the addresses and obtained longtitude and latitude. I created a census tract field. I do not know how to add a census tract polygon layer. I went into Map libririan and opened a map for median income, but I still can't get it to work for me. Please help. Thank you Irina --- In [email protected]<mailto:Maptitude%40yahoogroups.com>, Kevin Byrnes <byrnes@...<mailto:byrnes@...>> wrote: > > Create fields in your dataset for census tract number & track median income, > geocode the addresses (unless you already have map coordinates) and add a > census tract polygon layer to your project map and then use the Edit/Tag > feature to fill the tract number with the tract number from the census tract > polygon layer & do the same to fill the median income field with the median > income value stored in your reference tract layer. > > See Tagging map features with data in user manual index. > > Kevin Byrnes > GWRC > > From: [email protected]<mailto:Maptitude%40yahoogroups.com> > [mailto:[email protected]<mailto:Maptitude%40yahoogroups.com>] On > Behalf Of Lericrew > Sent: Tuesday, September 13, 2011 4:40 PM > To: [email protected]<mailto:Maptitude%40yahoogroups.com> > Subject: [Maptitude] how to map data > > > > I have a data set with addresses and would like to get the census trackt > number for them and furthermore obtain the median income per census track. So > far I was only able to import the data into Maptitude, but unable to assign a > census trackt number per each address. > I do not need to show the data on the map, just want to extract the census > track number and median income. > > Does anyone know how to accomplish this? > > Thank you >
