Kdens and Hist overlay

[peter peter]

Can Stata plot two series with their histograms and kernel densities all in the one chart? something like: twoway (hist x1 || kdensity x1 ) (hist x2 || kdensity x2)

[William Lisowski]

Do you mean something like this?

sysuse auto, clear
twoway (hist weight || kdensity weight), name(g1)
twoway (hist price  || kdensity price ), name(g2)
graph combine g1 g2

[peter peter]

Thanks. Actually no. My idea was to have all on 1 figure rather than 2 (as above)

[William Lisowski]

sysuse auto, clear
twoway (hist weight, color(red)) (kdensity weight) (hist price, color(blue)) (kdensity price)

yields a fairly unappealing result, but maybe it will be a starting point for you.

[peter peter]

Thank you William. Yes, the hidden color overlaps were on my mind too. But this is a point to start experimenting indeed.

[Nick Cox]

See how far a histogram and a kernel density estimate compare is a common task, as is comparing histograms and as is comparing kernel density estimates. Comparing two or more histograms and two or more density estimates is another thing.

See multidensity from SSC for comparison of density estimates.

https://www.statalist.org/forums/for...lable-from-ssc

The command name is perhaps not well chosen insofar as it may lead to an expectation that it supports multivariate, or even bivariate, density estimation, but it doesn't.