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OT:FC: How to calculate equivalent dog years - no really this time

Not per the original post


I always understood it to be dogs age x 4 + 20. The exception being the first year. The dog matures in its first year at 2 years per month. After that, 20 + 4x. So when a dog is 10, it is 60.
 
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Nobody pays attention to the (important) details. The “ln” in the formula stands for “natural logarithm”...... a mathematical term that is probably familiar to less than 1% of the folks on this board - but completely changes the magnitude of the equation’s result.
I’m not gonna’ take the time to explain it to anyone here...... but if you wanna’ know what the result is for a particular number of years, I can calculate it for ya’ (for a small fee, of course :) )
Oh, I see, a secret code that only math guys can decipher. F that. Learn to use your words.
 
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Spoiler: human equivalent age = 16 x ln(dog’s chronological age) + 31

They calculate it by measuring the methylation of DNA at various points in development. They even graphed it out.

https://theconversation.com/are-dog-years-for-real-an-explanation-of-calculating-canine-age-127655
I think it actually varies quite a by breed.

Many larger breeds have shorter life spans, so you can't have one equation for all breeds. My 7 year old retriever is the equivalent of 50 (according to a breed base chart I saw), but a 7 year old small dog might only be 35 in human equivalents.
 
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I think it actually varies quite a by breed.

Many larger breeds have shorter life spans, so you can't have one equation for all breeds. My 7 year old retriever is the equivalent of 50 (according to a breed base chart I saw), but a 7 year old small dog might only be 35 in human equivalents.
The equation puts it at 62
 
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Reactions: 91Joe95
Nobody pays attention to the (important) details. The “ln” in the formula stands for “natural logarithm”...... a mathematical term that is probably familiar to less than 1% of the folks on this board - but completely changes the magnitude of the equation’s result.
I’m not gonna’ take the time to explain it to anyone here...... but if you wanna’ know what the result is for a particular number of years, I can calculate it for ya’ (for a small fee, of course :) )

And this is what bothers me about this article. They discuss the Richter scale and stuff which is base 10, and then write natural log in their equation. It pisses me off.
 
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Oh, I see, a secret code that only math guys can decipher. F that. Learn to use your words.
its easy. hit the calculator button on you iphone
now turn it sidways, look for the ln button, put your dogs age in there, mine is 12, hit the ln button
multiple that by 16 now add 31, I get 70.75 for my dog.
no need to figure out what ln is, just hit the button.
 
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Sad that they used a whole paragraph to explain what a logarithm is.

If you dog is 9.6 years old, you can use the 7x method and still get the same answer.
 
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Nobody pays attention to the (important) details. The “ln” in the formula stands for “natural logarithm”...... a mathematical term that is probably familiar to less than 1% of the folks on this board - but completely changes the magnitude of the equation’s result.
I’m not gonna’ take the time to explain it to anyone here...... but if you wanna’ know what the result is for a particular number of years, I can calculate it for ya’ (for a small fee, of course :) )
I did not read it correctly. It is easy to see how someone could read “in dog years” at first glance. Yes, the natural log, e, 2.718. Got it. Natural log is also used for determining decibels.

still like my formula, a little easier to figure in your head!!
 
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