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Longitudinal analysis of sentiment and emotion in news media headlines using automated labelling with Transformer language models

Fig 3

Average yearly prevalence of news articles headlines denoting different types of emotionality in 47 popular news media outlets.

The shaded gray area indicates the 95% confidence interval around the mean. Note the different scale of the Y axes for the different emotion types. For each emotional category, statistical tests for the null hypothesis of zero slope are shown on the bottom left of each subplot. Reported p-values have been Bonferroni-corrected for multiple comparisons. The percentage changes between 2000 and 2019 are shown on the top left of each subplot.

Fig 3