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After looking at this thread, I saw the formula used there to calculate the PDR and really liked it. After a few tries to use the formula, I came to the conclusion I should not have passed grade 10 math. I can't seem to use the formula right, as every time I try to check the numbers the people use for their builds I get a completely different number every time.
The formula I'm talking about is h(d+s)+tchd, whereas:
h = Chance to hit, expressed as a percentage
d = Damage per hit. Average damage is assumed.
s = Precision damage per hit (or other damage that isn't multiplied on a crit). Average damage is again assumed.
t = Chance to roll a critical threat, expressed as a percentage.
c = Critical hit bonus damage. x2 = 1, x3 = 2, x4 = 3.
Here is an example of the numbers I use to calculate the PDR for Falchion Fred (the second build posted I believe)
h = 0.51 (0.85 x 0.6, chance of both attacks hitting in one round)
d = 30
s = 0
t = 0.25
c = 1
I then input this into the formula and get
0.51(30 + 0) + (0.25)(1)(0.51)(30) = 15.3 + 3.825 = 19.125
A Man In Black's result was 59.25, far higher than what I got. Could someone please tell me what I'm doing wrong, since this is sort of driving me nuts...
1) falchion threat range 15-20 = 0.3 not 0.25
2) do not multiply h calculate both and add together, you only calculate if both attacks hit, what if only the first hits, or only the second ? (so h is 1.45 if you add together)
the falchion threatens a crit on 15 16 17 18 19 20 .. six numbers. (even though 20-5 would make you think its 5... i usually make that mistake too)
6/20 = .3
well its possible to add the percentages on the hits together, although not on the crit part of the equation, due to critical focus and the like, as there is no need to confusing the OP, here is what you do.
Let me run you through it,
step one use the formula for the first attack,
step two use the formula for the second attack.
this gives us (as he has no precision damage
0.85*30 + 0.3*1*0.85*30 = 33.15 for the first attack
0.60*30 + 0.3*1*0.60*30 = 23.4 for the second attack
in total that is 56.55
where he got 59.25 from is a good question actually, and i should maybe check up on that. But the math is atleast correct now
edit: found the oversight you have made, FF has critical focus, making his rutine and damage be
0.85*30 + 0.3*1*0.95*30 = 34.05 for the first attack
0.60*30 + 0.3*1*0.80*30 = 25.2 for the second attack
giving him the correct 59.25 DPR
that also means the formula is incorrect, it should be
h(d+s)+tckd
where u let k be the chance that the attack hits if you have a critical threat. ie without critical focus its the same as h, but with CF and the samurai ability it will be a bit higer.
After looking at this thread, I saw the formula used there to calculate the PDR and really liked it. After a few tries to use the formula, I came to the conclusion I should not have passed grade 10 math. I can't seem to use the formula right, as every time I try to check the numbers the people use for their builds I get a completely different number every time.
The formula I'm talking about is h(d+s)+tchd, whereas:
h = Chance to hit, expressed as a percentage
d = Damage per hit. Average damage is assumed.
s = Precision damage per hit (or other damage that isn't multiplied on a crit). Average damage is again assumed.
t = Chance to roll a critical threat, expressed as a percentage.
c = Critical hit bonus damage. x2 = 1, x3 = 2, x4 = 3.Here is an example of the numbers I use to calculate the PDR for Falchion Fred (the second build posted I believe)
h = 0.51 (0.85 x 0.6, chance of both attacks hitting in one round)
d = 30
s = 0
t = 0.25
c = 1I then input this into the formula and get
0.51(30 + 0) + (0.25)(1)(0.51)(30) = 15.3 + 3.825 = 19.125A Man In Black's result was 59.25, far higher than what I got. Could someone please tell me what I'm doing wrong, since this is sort of driving me nuts...
The same thread has a spreadsheet that does the math for you. In some cases you may have to get creative. spreadsheet