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  1. ggplot(heatmap_data, aes(x = var1, y = var2)) +
  2.   geom_tile(aes(fill = freq), color = "white") +
  3.   scale_fill_gradient2(low = "darkgreen", mid = "green", high = "darkred", midpoint = 0, limits = c(-1, 1), space = "Lab", name = "correlation") +
  4.   labs(title = "correlation Heatmap") +
  5.   theme_minimal() +
  6.   theme(axis.text.x = element_text(angle = 45, vjust = 1, size = 12, hjust = 1), axis.text.y = element_text(size = 12))
  7.  
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ggplot(heatmap_data, aes(x = var1, y = var2)) +
  geom_tile(aes(fill = freq), color = "white") +
  scale_fill_gradient2(low = "darkgreen", mid = "green", high = "darkred", midpoint = 0, limits = c(-1, 1), space = "Lab", name = "correlation") +
  labs(title = "correlation Heatmap") +
  theme_minimal() +
  theme(axis.text.x = element_text(angle = 45, vjust = 1, size = 12, hjust = 1), axis.text.y = element_text(size = 12))
https://ideone.com/3ZZamq
language:
PHP (php 7.3.5)
created:
10 days ago
visibility:
public

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