```r
ggplot(lda_gamma, aes(gamma)) +
  geom_histogram() +
  scale_y_log10() +
  labs(title = "Distribution of probabilities for all topics",
       y = "Number of documents", x = expression(gamma))
```

![(\#fig:plotgammaall)Probability distribution in topic modeling of NASA metadata description field texts](08-nasa-metadata_files/figure-latex/plotgammaall-1.pdf)