bean-web: How to define the decimal precision?

[Roland Everaert]

Hello,

How can I tell bean-web the number of digits to display after the period?

I often see, in the balance sheet to name one page, thatvalues are rounded and no decimal is shown.

I want to see number with 1 or 2 digits after the decimal comma.

Example:

- Current configuration

Real value: 3.67

Displayed value: 4

- Expected configuration

Real value: 3.67

Displayed value: 3.67

I have seen some section about rounding and tolerance but my comprehention is that they have nothing to do with how numbers are displayed with bean-web.

Roland.

[Martin Blais]

Tolerances and precision for rendering are inferred, see this doc:

http://furius.ca/beancount/doc/tolerances

I don't remember if bean-web has ever been converted to use those though.

It's bound to be deleted anyway, not going to update it.

I'd like to add explicit options to force a desired precision at some point, this seems like a better default than atempting to infer everything automatically.

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[Roland Everaert]

Thanks for the link.

What will be deleted? bean-web?

I also think that adding some option in the beancount file, with regards
to precision, is way better, because it is 100% predictable.

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[Martin Blais]

On Fri, Nov 23, 2018 at 6:46 AM Roland Everaert <r.eve...@gmail.com> wrote:

Thanks for the link.

What will be deleted? bean-web?

Yes, eventually, or if anything, it would be replaced by a bare-bones minimal thing fed by SQL queries only.

Please find long email on this list from previously.

Switch to Fava, it's much better.

I also think that adding some option in the beancount file, with regards
to precision, is way better, because it is 100% predictable.

I agree.

To view this discussion on the web visit https://groups.google.com/d/msgid/beancount/87va4orp8t.fsf%40gmail.com.

[Roland Everaert]

Is bean-query also affected by the same limitation?

I will try fava when times permit, thanks.

[Roland Everaert]

Fava is effectively much better than bean-web. However, it still suffer from the fact that most columns are rounding-up values to the next integer instead of displaying the real number with its decimals :(

I hope this will be fixed soon, or maybe their is some parameters I can modify to set the precision to 1 or 2 digits after the decimal point.

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[ethan.gla...@gmail.com]

I just encountered this myself and I wanted to write down what I figured out.

Beancount uses a "display context" to track statistics about precisions it sees in the input. Fava displays numbers using the "most common" precision. I guess this is the "mode" of the precisions Beancount has seen in a file: https://bitbucket.org/blais/beancount/src/945f4154f1af6b07674355c1798a27ff5d6c2794/beancount/core/display_context.py?at=default&fileviewer=file-view-default#display_context.py-163

It seems that Beancount may not track this number across files -- moving a bunch of transactions from a "main" file into a file imported using the "include" directive can change the precision.

As far as I know there is no parameter or option you can use to set this "display context" precision.

Ethan

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[Martin Blais]

I'll look at adding an option to set it directly, this causes a lot of friction.

To view this discussion on the web visit https://groups.google.com/d/msgid/beancount/1a8ce794-38bf-4c63-97c8-db4c8c33785b%40googlegroups.com.

[Roland Everaert]

Thanks to both of you for your research and your commitment to improve
such a great tool in my life.

Have a nice day,

Roland Everaert.

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