```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))
```

<div class="figure">
<img src="08-nasa-metadata_files/figure-epub3/plotgammaall-1.png" alt="Probability distribution in topic modeling of NASA metadata description field texts"  />
<p class="caption">(\#fig:plotgammaall)Probability distribution in topic modeling of NASA metadata description field texts</p>
</div>