storage_gui has injection and withdrawal rate reverse to the ratchet storage definition about storage HOT 6 CLOSED

Yes, that is correct. When creating a CmdtyStorage instance with ratchets, a negative number in the 3-tuples represents withdrawal. This was motivated by making the API clearer as the tuples don't show explicitly which element is the injection and which is the withdrawal rate. The example GUI didn't follow this convention as it is expected to be used by less technical users, so I wanted to make it as easy to use as possible. For ratchets in the GUI a header in the table makes it clear which number is injection or withdrawal, and users don't have to type in a minus sign in the usual case where there isn't forced injection.

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This is not about negative numbers but that in the widget you're creating ratchet object with the order
Date, Inventory, -InjectionRate, WithdrawalRate
while your documentation states it should be
Date, Inventory, -WithdrawalRate, InjectionRate

from storage.

OK, understood, and that does sound like a bug. I’ll take a look at the weekend.

from storage.

Crikey, that's a howler of a bug! Should be fixed now. Thanks @londown for spotting and flagging this. Please pull the latest code, check it looks ok for you and then close this issue accordingly.

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Thanks. Can I suggest an additional change to replace lines 185-186

for idx, title in enumerate(titles):
        tab.set_title(idx, title)

with
tab.titles = titles

from storage.

Thanks. Can I suggest an additional change to replace lines 185-186

for idx, title in enumerate(titles):
        tab.set_title(idx, title)

with tab.titles = titles

I tried this and it didn't work. Think it must be because I'm using an older version (7.6.5) of ipywidgets.

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