In Arcadia Enterprise, radial charts are a good approach for comparing the relative values of several measures. These measures are assigned an equal angle of rotation, and the relative values are represented through the areas of each wedge.
The following steps demonstrate how to create a new radial visual representation on dataset
US County Population
[data source
samples.us_counties
].
US County Population
[data source
samples.us_counties
]; see Creating Visuals.In the visuals menu, find and click Radial (row 3, column 6).
Note that the shelves of the visual changed.
They are now X, Y, Dimensions, Measures, Tooltips, and Filters.
Both Dimensions and Measures are mandatory.
Populate the shelves from the available fields (Dimensions, Measures, and so on) in the Data menu.
ctyname
, and add it to the
Dimensions shelf.wa_male
,
ba_male
, ia_male
, aa_male
,
na_male
and tom_male
.Note that all fields on the Measures shelf show the sum of male
populations. To show both male and female (total) in the group, change the calculations
for the fields: change the expression sum([wa_male]
to
(sum([wa_male])+sum([wa_female]))
, and so on.
The following steps demonstrate how to use the Expression Editor:
On the shelf of the visual, click the icon to the right of the field.
In the Column Properties menu, click the [ ] Enter/Edit Expression option.
In the Enter-Edit Expression window modal, edit the text manually or by pulling in the appropriate functions and fields.
Click Validate Expression to ensure that the computation works, and then click Save.
Click icon at the top of the Column Properties menu to close it.
Note that the column in the shelf now appears to hold the expression.
To improve the appearance of the visual, alias ctyname
as
County
on the Dimensions shelf, and all the
fields on the Measures shelf:
(sum([wa_male])+sum([wa_female]))
as White
(sum([ba_male])+sum([ba_female]))
as Black or African
American
(sum([ia_male])+sum([ia_female]))
as American Indian and
Alaska Native
(sum([aa_male])+sum([aa_female]))
as Asian
(sum([na_male])+sum([na_female]))
as Native Hawaiian and
Other Pacific Islander
(sum([tom_male])+sum([tom_female]))
as Two or More
Races
Note the steps for creating an alias:
On the shelf of the visual, click the icon to the right of the field.
In the Field Properties menu, click the icon next to Alias.
In the text box below Alias, enter the alias name of column, as it should appear in the visual.
Click icon at the top of the Field Properties menu to close it.
Note that the shelf now shows the column with its alias name.
Click Refresh Visual.
stname
field to see a smaller visual, or trellis the
visual on stname
field, as described in Trellised Radial. Change the title to Populations, by County - Radial
.
Click (pencil icon) next to the title of the visualization to edit it, and enter the new name.
[Optional] Click (pencil icon) below the title of the visualization to add a brief description of the visual.
At the top left corner of the Visual Designer, click Save.
At the top left corner of the Visual Designer, click Close.