Figure 3
From: Nature and happiness in an individualist and a collectivist culture
Predicted proportion of happy facial expressions (HFE) in a Flickr photo, as a function of composite ETN and its components, in Boston and Yokohama. All independent variables except for HFE were held fixed at 1. Higher values on the x-axis reflect more naturalness, less developed areas, greater proximity to water bodies and greater green vegetation cover. The values on the x-axis reflect the range between the 10% and 90% quantiles in the observed data. The solid lines represent predicted values, and the dashed lines represent 95% confidence intervals.
