Textual data refers to information that is in the form of text. It can be written words, sentences, or paragraphs that can be processed and analyzed by computers. Full definition
We start by figuring out what data are important to the organization, whether we're talking textual data or any other type. (contentmarketinginstitute.com)
«Validating Estimates of Latent Traits from Textual Data Using Human Judgment as a Benchmark». (blog.politics.ox.ac.uk)
Debates, on the other hand, can yield significant textual data than can be analysed and used to estimate ideological positions. (blog.politics.ox.ac.uk)