Average Number of Fuel-Ups Incorrect? - Fuelly Forums

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Old 06-17-2011, 12:21 AM   #1
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Average Number of Fuel-Ups Incorrect?

My Vehicle Profile page that states that I'm "averaging 1 fuel up per week", but that's not quite right.

According to my "Annual Report" data, I had 26 fuel-ups in 2010, 31 in 2009, and 13 so far this year. The running average since is 1.83, so this could just be a rounding error...

BTW - Love the site - Keep up the great work!
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Old 06-17-2011, 01:11 AM   #2
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Here's how we calculate it. We take the total fuel-ups divided by the number of weeks you've been fueling. In your case you have 81 fuel-ups over the course of 146 weeks which gives us 0.554 fuel-ups per week. We round that up which gives us an average of 1 per week.

How did you get to 1.83?
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Old 06-17-2011, 06:33 AM   #3
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1.83 is probably weeks-per-refuelling (rather than refuellings-per-week).
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Old 06-18-2011, 02:49 AM   #4
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I've just filled in about 3 months' worth of fuel-ups just now and it's saying "averaging

3 per month" even though it's just three fuel-ups over three months, i.e. one a month. What's going on there? Is it taking the time from when I entered the data or something silly?
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Old 06-18-2011, 05:12 AM   #5
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I see the confusion, ZilogJones. In reality there's only 33 days between your first fuel-up and your last fuel-up. So in our system a "month" is 30 days. But you're expecting each *change* in calendar month to represent a month in our system.

Yeah, that is confusing if you're thinking of calendar months instead month as a general 30-day timespan. We might need to change the wording there or change how things are calculated. I'll give it some thought.
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Old 06-19-2011, 01:14 AM   #6
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Yeah I was thinking in calendar months, I was too lazy to count the actual number of days between them

Thanks for the clarification
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Old 06-19-2011, 09:45 PM   #7
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I fill up once a month and I filled up yesterday. I know it takes a few hour before the system updates but 24 hours on and it still only shows 16 fill ups on the image?

Where as the Fuelly image link gone too?
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Old 06-20-2011, 01:51 AM   #8
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KeithUK, sounds like you're talking about Fuelly badges. Here's a direct link to your badge image. I see 17 fuel-ups listed. You might have a locally cached version of the image in your browser. Try clicking the link here and then a refresh at the URL once it's loaded.

If you're looking for the page that lists the badges, you can find a link under the Log Book. There's a picture of the badge icon in this FAQ, list item #4.

If you have the sidebar expanded, there's also a sample badge on the right hand side of the page when you're viewing your vehicle profile page.
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