Currency covert and rounding issue

[Zhang Sr]

Hi,

Sorry for asking so much beginner questions. At the final round, I am showing the participant.payoff, but I also want to show  the real world payoff. Thus I am doing the following:

It works well, but because the payoff is set to be "currency",  and the dollar_payoff is set " float" type, so the result becomes:

I do want to remove the "points", and also keep the decimal numbers. Is there anyway I can fix this?

Thank you all, hope you all have a great day.

Shaorong

[Chris Crabbe]

Hi Shaorong -

The way oTree has built-in to accomplish this is to set USE_POINTS=False like in the docs here:  https://otree.readthedocs.io/en/latest/currency.html#currency

Thanks,

--Chris

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[BonnEconLab]

Hi,

I understand that Shaorong would like to keep the points/dollar distinction, so globally setting USE_POINTS = False might not be the best solution.

However, you can do the conversion locally via

dollar_payoff = float(participant.payoff / 10)

If you want exactly two decimal places in combination with a decimal point, then you can use

dollar_payoff = format(float(participant.payoff / 10), '.2f'))

Finally, if you would like a decimal comma instead of a decimal point, you can use

dollar_payoff = format(float(participant.payoff / 10), '.2f')).replace(".", ",")

Beyond that, oTree offers built-in methods for converting points to real-world currency units via the parameter real_world_currency_per_point and the method .to_real_world_currency(session), see https://otree.readthedocs.io/en/latest/currency.html.

Best,

Holger