In the first step, you need to select the attribute (i.e. the column from your spreadsheet)
for which you wish to carry out the colour-coding. In the second step, you need to specify whether
the attribute is categorical, ordinal or numerical.
For categorical attributes like PART OF SPEECH (whose values NOUN, ADJECTIVE, VERB etc.
have no inherent ordering), WordValue automatically generates a list of all the value types in the
corresponding column and asks you to select a colour for each of these values by interacting with
a colour picker offering a large number of colours, whose precise form depends on the browser used.
Ordinal attributes like COMPARISON (whose values POSITIVE, COMPARATIVE and SUPERLATIVE are
ordered but not equally spaced) can be colour-coded like categorical variables with the additional
use of an intuitive systematic colour-coding scheme going from warm to cold colours, from light to
dark colours etc.
For numerical attributes like word frequency, WordValue offers the option to map the values
to a colour gradient, for which users can define the start and end colour.
WordValue then automatically retrieves all unique values of that attribute and maps these values
onto the colour gradient.
Please note that the attribute selected by default is the numerical KEY FREQUENCY
(i.e. how often the search keys occur in the target text).
This means that if you select an ordinal or categorical attribute while still in numerical mode,
a warning message will pop up to remind you that the attribute you selected can not be interpreted
as numerical.
In that case, please choose ordinal or categorical mode, whichever you prefer for your use-case.
Alternatively, you can also select ordinal or categorical mode before you change the selected
attribute, since any numerical attribute can also be interpreted as ordinal or categorical.
In addition, it is possible to modify the colour of all words in the text that do not match any
search key. Changing this "background colour" to white permits a unique focus on the targeted items,
whereas e.g. a light grey provides unobtrusive contextual information.