Im no mathematician...

JenniDaisy

But this doesn't add up to me.

Has anyone else been experiencing any weird glitchy-ness over the last few days?
For example macros adding up to different amounts depending on whether you're looking at the website or the app. Yesterday they were off by quite a few grams, and I'm not sure which is correct.

DeguelloTex

Other than the rounding to integers, what's wrong with it?

crazyjerseygirl

Haha! My guess is that you have decimals that the program rounds up or down depending. No worries!

JenniDaisy

Ok, it's just today one of my macros has a difference of 5 grams, that's quite a bit!
Do I just assume the website is the correct one?

Liftng4Lis

laughs, I haven't noticed.

TimothyFish

It would seem the guy who developed the app isn't a mathematician either.

williams969

The app rounds to the nearest whole number. "Close" enough. Here's an example of this in action:

39.49% (rounded down to 39%)
35.49% (again, rounded down to 35%)
25.02% (rounded to 25%)

Actual total is 100% (but app rounds each, 39+35+25=99).

Don't sweat it, it's just rounded for simplicity (really, don't sweat macros not adding up calorie wise, either).

williams969

JenniDaisy wrote: »

Ok, it's just today one of my macros has a difference of 5 grams, that's quite a bit!
Do I just assume the website is the correct one?

Same rounding to nearest whole number thing going on. For example, a food item may contain 4.3g of some macro, app rounds to 4g.
Conversely, food may have 3.9g, app rounds up to 4g. And that's for all of your foods, it adds up, but do not worry, it is still an accurate estimations (some are more, some are less, it all averages out in the long run).
It really is close enough (these are all estimates, margin of error/variations in foods, even whole foods, is already more than 0.1g per macro).

DeguelloTex

TimothyFish wrote: »

It would seem the guy who developed the app isn't a mathematician either.

And some posters who seem not to understand rounding.

JenniDaisy

DeguelloTex wrote: »

TimothyFish wrote: »

It would seem the guy who developed the app isn't a mathematician either.

And some posters who seem not to understand rounding.

I understand rounding, please give me some credit. My main concern is the issue with the app and the website showing quite different numbers, and the 99% instead of 100% had never happened before so I wondered whether it was some kind of glitch.

DeguelloTex

JenniDaisy wrote: »

DeguelloTex wrote: »

TimothyFish wrote: »

It would seem the guy who developed the app isn't a mathematician either.

And some posters who seem not to understand rounding.

I understand rounding, please give me some credit. My main concern is the issue with the app and the website showing quite different numbers, and the 99% instead of 100% had never happened before so I wondered whether it was some kind of glitch.

I wasn't quoting you. I get that differences between the app and the site would raise questions.

TimothyFish

williams969 wrote: »

The app rounds to the nearest whole number. "Close" enough. Here's an example of this in action:

39.49% (rounded down to 39%)
35.49% (again, rounded down to 35%)
25.02% (rounded to 25%)

Actual total is 100% (but app rounds each, 39+35+25=99).

Don't sweat it, it's just rounded for simplicity (really, don't sweat macros not adding up calorie wise, either).

Sure, but a pie chart is improperly displayed if the sum of all slices doesn't equal 100%. Using your figures, the app could have rounded to 39.5%, 35.5%, and 25.0% and it would've been correct. It is no more correct to use 39%, 35%, 25% than it is to us 40%, 40%, and 30%, which is another set of values that we can get by rounding your numbers. But, you know, there are always those people who have to do things 110%.

galgenstrick

JenniDaisy wrote: »

Ok, it's just today one of my macros has a difference of 5 grams, that's quite a bit!
Do I just assume the website is the correct one?

5 grams really isn't much. It's well within the noise.

Mr_Knight

The way the site works it gives a false sense of accuracy. There is no way - outside of sheer luck - that the pie chart thing is accurate to within 1% anyway.