Userfile download

 Userfile upload

 Save Project

 Open Project

 

An Example/Application

Consider the application of copying

.. the median age by county layer (County 2024 Median Age) layer

.. from the VDA GIS project "Population County -- Age/Gender"

.. to the VDA GIS project "American Community Survey 2023 County Data Profiles".>

Complete the following steps using VDAW4.

You will be able to display median age by county (a label) and median age by county (a label) from the ACS 2023 county file (item D018).

 

Userfile download

 First, select the project where the layer is located.

    e.g., Population County -- Age/Gender

 With a project open, select a layer making it the active layer (left click name)

 Click the Userfile download. A form appears. Click the Make Shapefile.

 The name of the shapefile is shown; it will not be familiar and is assigned by the system.

 Click the Download button; the downloaded file will be in a folder on your computer.

 The shapefile correponding to that layer has been downloaded. Close the Userfile download frame.

 

Userfile upload

  First, select the project where the layer is to be added

   e.g. American Community Survey 2023 County Data Profiles.

  Click the Userfile upload. A form appears. Click the Choose file.

  The name of the shapefile is shown; assigned by the system.

  Select the shapefile to be added. This name is a ZIP file and was stored on your computer.

  A new layer is added at the top of the Legend Panel corresponding to the shapefile.

  Close the Userfile upload form.

  The map window shows the shapefile as the top layer. It has a gray fill pattern.

     Optionally modify the layer attributes with the Tools>Layer Editor.

           Add a label (medage as upper, center)

     Optionally move the new layer down with the up/down feature.

 

Save Project

 Click the Save button to save the project

   e.g. while American Community Survey 2023 County Data Profiles with new layer is opened.

 The original project will not be affected.

 

Open Project

 Any authorized user can now open the new project.

 The new project name is not promoted or listed.

 The Open the project with the added layer, click Open Project.

    a form opens showing the projects saved using this method.

 the most recent project saved is shown at top.

 

Displaying and interpreting the differences in ages.

Why is there a difference in the two median ages diaplayed?

1) the ACS 2023 data are 5-year estimates based on a survey (the latest) -- centric to 2021

2) the data from the 2024 median age by county are two years more recent and based on model-based estimates.

 

ACS 2023 data are 5-year estimates based on a survey (the latest) -- centric to 2021

.. zoom in to Kansas counties

.. click graphic for larger view

<a href="http://proximityone.com/graphics/ks_medage_acs23_070425.gif" title="click for larger view" target=_blank>

<img src="http://proximityone.com/graphics/ks_medage_acs23_070425.gif" width=400px border=1></a><br>

.. Sedgwick County (Wichita) .. median age 35.9 years (statistical survey with MOE known)

 

2024 median age by county are two years more recent and based on model-based estimates

.. click graphic for larger view

<a href="http://proximityone.com/graphics/ks_medage_2024_070425.gif" title="click for larger view" target=_blank>

<img src="http://proximityone.com/graphics/ks_medage_2024_070425.gif" width=400px border=1></a>

.. zoom in to Kansas counties

.. Sedgwick County (Wichita) .. median age 36.4 years (model-based, no MOE available)