Hi,

I created a 3D graph with plot_ly in R. However, density on the z-axis is between 0-0.02 which means there is at most 2% of the data at pick points. Actually, 80% of the data has depression value below 10 and Ln income below 4. I am wondering where this data is located. It looks somehow I do not capture them in the density plot. Please see the graph and commands below.

```
kernel1 <- kde2d(
subset1$cesd_score,
subset1$ln_income)
fig1 <- plot_ly(x=kernel1$x, y=kernel1$y, z=kernel1$z) %>% add_surface() %>%
layout(title = 'All sample - Density Depression & Ln Income)
print(fig1)
```

Thanks in advance for your suggestion!