Feature Request: who comparative data in weight chart

[fapo85]

Our pediatrician uses the Percentiles weight data to assess our child's weight development.

I would like to be able to visualize this as well.

The Percentiles weight data are comparative data to be able to estimate the development.
These are published by the World Health Organization.
https://www.who.int/tools/child-growth-standards/standards/weight-for-age

A distinction is made between male and female gender.

I would like to be able to fade in these in the weight chat with to be able to estimate the development.

[cdubz]

Hm. The challenge here would be that Baby Buddy does not enforce any particular unit for weight (or anything else) so supplementing with this data would be pretty complex. Unless that changes at some point this is probably best left as an exercise to individual users with Baby Buddy's API.

And I would be happy to boost anything that someone builds and releases 😃

[fapo85]

hmm maybe better that one makes it generally.
So the function that you say I can just put lines in the chart.
That can be for comparison other children.
but also the who comparative data in different units.

but I think now the feature is too big :-D

[Cadair]

I was thinking about adding this, I don't really want to have to spin up something else outside of BB itself to do this comparison. How about adding buttons to add the percentile lines in kg and lb so if people are using those units they can toggle on the lines?

[cdubz]

Hmmmm I could see that working. Definitely open to a PR.

I'd also consider committing to kg (making this slightly easier) but that probably have to happen in a major release.

[Cadair]

I'd also consider committing to kg

The way it should be 😉

[cdubz]

Haha yes I increasing feel that way. If Baby Buddy commits to anything it will be metric.

[barakplasma]

I took the liberty of making a plotly.js chart from the WHO data https://codepen.io/barakplasma/pen/bGOoZEe?editors=1011

I'm not crazy about my color scheme, but that's easy to fix

[barakplasma]

starting to take shape
example from who:

[cdubz]

Very cool @barakplasma -- one thing to keep in mind is Baby Buddy doesn't currently have any way to set a child's sex. So that is something we'll have to add in support of this as well.

[fs1]

This is really awesome! Thank you very much. Maybe you can also add https://www.who.int/tools/child-growth-standards/standards/length-height-for-age in one of the next releases? And maybe we should give somewhere (in the report itself?) a note that this chart will only work, if you document in kg (until now, I used gram).

[cdubz]

@fs1 should be doable -- could you make a new issue with this request so we can track it?