netherspite
commented
6 years ago 
Monday Nov 23, 2015 at 01:30 GMT
Here are the relevant numbers as copied from cmangos source (actually I copied them from my addon which deals with this crap, but I copied them from the cmangos source for that addon).
Dodge chance should thus be BaseDodge + Agility * CritPerAgi * Multiplier. For the nelf in the screenshot, for instance, this should reckon out to -0.59% + 41 * 0.2941 * 2 = 23.5262%
...which is actually more than what you can see in the screenshot so now I'm not so sure if these numbers are correct after all. It's obviously possible that the base dodge values on Corecraft are incorrect, ISTR when testing this on Smolderforge they had different base dodge values from the ones here as well (back then I dismissed it as an issue on their end).
Base dodge (in %, order is warrior paladin hunter rogue priest shaman mage warlock druid):
0.7580, 0.6520, -5.4500, -0.5900, 3.1830, 1.6750, 3.4575, 2.0350, -1.8720,Crit (in percentages) per point of agility (same order as above, organized by level):
[1] = {0.2500, 0.2174, 0.2840, 0.4476, 0.0909, 0.1663, 0.0771, 0.1500, 0.2020, },
[2] = {0.2381, 0.2070, 0.2834, 0.4290, 0.0909, 0.1663, 0.0771, 0.1500, 0.2020, },
[3] = {0.2381, 0.2070, 0.2711, 0.4118, 0.0909, 0.1583, 0.0771, 0.1429, 0.1923, },
[4] = {0.2273, 0.1976, 0.2530, 0.3813, 0.0865, 0.1583, 0.0735, 0.1429, 0.1923, },
[5] = {0.2174, 0.1976, 0.2430, 0.3677, 0.0865, 0.1511, 0.0735, 0.1429, 0.1836, },
[6] = {0.2083, 0.1890, 0.2337, 0.3550, 0.0865, 0.1511, 0.0735, 0.1364, 0.1836, },
[7] = {0.2083, 0.1890, 0.2251, 0.3321, 0.0865, 0.1511, 0.0735, 0.1364, 0.1756, },
[8] = {0.2000, 0.1812, 0.2171, 0.3217, 0.0826, 0.1446, 0.0735, 0.1364, 0.1756, },
[9] = {0.1923, 0.1812, 0.2051, 0.3120, 0.0826, 0.1446, 0.0735, 0.1304, 0.1683, },
[10] = {0.1923, 0.1739, 0.1984, 0.2941, 0.0826, 0.1385, 0.0701, 0.1304, 0.1553, },
[11] = {0.1852, 0.1739, 0.1848, 0.2640, 0.0826, 0.1385, 0.0701, 0.1250, 0.1496, },
[12] = {0.1786, 0.1672, 0.1670, 0.2394, 0.0790, 0.1330, 0.0701, 0.1250, 0.1496, },
[13] = {0.1667, 0.1553, 0.1547, 0.2145, 0.0790, 0.1330, 0.0701, 0.1250, 0.1443, },
[14] = {0.1613, 0.1553, 0.1441, 0.1980, 0.0790, 0.1279, 0.0701, 0.1200, 0.1443, },
[15] = {0.1563, 0.1449, 0.1330, 0.1775, 0.0790, 0.1231, 0.0671, 0.1154, 0.1346, },
[16] = {0.1515, 0.1449, 0.1267, 0.1660, 0.0757, 0.1188, 0.0671, 0.1111, 0.1346, },
[17] = {0.1471, 0.1403, 0.1194, 0.1560, 0.0757, 0.1188, 0.0671, 0.1111, 0.1303, },
[18] = {0.1389, 0.1318, 0.1117, 0.1450, 0.0757, 0.1147, 0.0671, 0.1111, 0.1262, },
[19] = {0.1351, 0.1318, 0.1060, 0.1355, 0.0727, 0.1147, 0.0671, 0.1071, 0.1262, },
[20] = {0.1282, 0.1242, 0.0998, 0.1271, 0.0727, 0.1073, 0.0643, 0.1034, 0.1122, },
[21] = {0.1282, 0.1208, 0.0962, 0.1197, 0.0727, 0.1073, 0.0643, 0.1000, 0.1122, },
[22] = {0.1250, 0.1208, 0.0910, 0.1144, 0.0727, 0.1039, 0.0643, 0.1000, 0.1092, },
[23] = {0.1190, 0.1144, 0.0872, 0.1084, 0.0699, 0.1039, 0.0643, 0.0968, 0.1063, },
[24] = {0.1163, 0.1115, 0.0829, 0.1040, 0.0699, 0.1008, 0.0617, 0.0968, 0.1063, },
[25] = {0.1111, 0.1087, 0.0797, 0.0980, 0.0699, 0.0978, 0.0617, 0.0909, 0.1010, },
[26] = {0.1087, 0.1060, 0.0767, 0.0936, 0.0673, 0.0950, 0.0617, 0.0909, 0.1010, },
[27] = {0.1064, 0.1035, 0.0734, 0.0903, 0.0673, 0.0950, 0.0617, 0.0909, 0.0985, },
[28] = {0.1020, 0.1011, 0.0709, 0.0865, 0.0673, 0.0924, 0.0617, 0.0882, 0.0962, },
[29] = {0.1000, 0.0988, 0.0680, 0.0830, 0.0649, 0.0924, 0.0593, 0.0882, 0.0962, },
[30] = {0.0962, 0.0945, 0.0654, 0.0792, 0.0649, 0.0875, 0.0593, 0.0833, 0.0878, },
[31] = {0.0943, 0.0925, 0.0637, 0.0768, 0.0649, 0.0875, 0.0593, 0.0833, 0.0859, },
[32] = {0.0926, 0.0925, 0.0614, 0.0741, 0.0627, 0.0853, 0.0593, 0.0811, 0.0859, },
[33] = {0.0893, 0.0887, 0.0592, 0.0715, 0.0627, 0.0831, 0.0571, 0.0811, 0.0841, },
[34] = {0.0877, 0.0870, 0.0575, 0.0691, 0.0627, 0.0831, 0.0571, 0.0789, 0.0824, },
[35] = {0.0847, 0.0836, 0.0556, 0.0664, 0.0606, 0.0792, 0.0571, 0.0769, 0.0808, },
[36] = {0.0833, 0.0820, 0.0541, 0.0643, 0.0606, 0.0773, 0.0551, 0.0750, 0.0792, },
[37] = {0.0820, 0.0820, 0.0524, 0.0628, 0.0606, 0.0773, 0.0551, 0.0732, 0.0777, },
[38] = {0.0794, 0.0791, 0.0508, 0.0609, 0.0586, 0.0756, 0.0551, 0.0732, 0.0777, },
[39] = {0.0781, 0.0776, 0.0493, 0.0592, 0.0586, 0.0756, 0.0551, 0.0714, 0.0762, },
[40] = {0.0758, 0.0750, 0.0481, 0.0572, 0.0586, 0.0723, 0.0532, 0.0698, 0.0709, },
[41] = {0.0735, 0.0737, 0.0470, 0.0556, 0.0568, 0.0707, 0.0532, 0.0682, 0.0696, },
[42] = {0.0725, 0.0737, 0.0457, 0.0542, 0.0568, 0.0707, 0.0532, 0.0682, 0.0696, },
[43] = {0.0704, 0.0713, 0.0444, 0.0528, 0.0551, 0.0693, 0.0532, 0.0667, 0.0685, },
[44] = {0.0694, 0.0701, 0.0433, 0.0512, 0.0551, 0.0679, 0.0514, 0.0667, 0.0673, },
[45] = {0.0676, 0.0679, 0.0421, 0.0497, 0.0551, 0.0665, 0.0514, 0.0638, 0.0651, },
[46] = {0.0667, 0.0669, 0.0413, 0.0486, 0.0534, 0.0652, 0.0514, 0.0625, 0.0641, },
[47] = {0.0649, 0.0659, 0.0402, 0.0474, 0.0534, 0.0639, 0.0498, 0.0625, 0.0641, },
[48] = {0.0633, 0.0639, 0.0391, 0.0464, 0.0519, 0.0627, 0.0498, 0.0612, 0.0631, },
[49] = {0.0625, 0.0630, 0.0382, 0.0454, 0.0519, 0.0627, 0.0498, 0.0600, 0.0621, },
[50] = {0.0610, 0.0612, 0.0373, 0.0440, 0.0519, 0.0605, 0.0482, 0.0588, 0.0585, },
[51] = {0.0595, 0.0604, 0.0366, 0.0431, 0.0505, 0.0594, 0.0482, 0.0577, 0.0577, },
[52] = {0.0588, 0.0596, 0.0358, 0.0422, 0.0505, 0.0583, 0.0482, 0.0577, 0.0569, },
[53] = {0.0575, 0.0580, 0.0350, 0.0412, 0.0491, 0.0583, 0.0467, 0.0566, 0.0561, },
[54] = {0.0562, 0.0572, 0.0341, 0.0404, 0.0491, 0.0573, 0.0467, 0.0556, 0.0561, },
[55] = {0.0549, 0.0557, 0.0334, 0.0394, 0.0478, 0.0554, 0.0467, 0.0545, 0.0546, },
[56] = {0.0543, 0.0550, 0.0328, 0.0386, 0.0478, 0.0545, 0.0454, 0.0536, 0.0539, },
[57] = {0.0532, 0.0544, 0.0321, 0.0378, 0.0466, 0.0536, 0.0454, 0.0526, 0.0531, },
[58] = {0.0521, 0.0530, 0.0314, 0.0370, 0.0466, 0.0536, 0.0454, 0.0517, 0.0525, },
[59] = {0.0510, 0.0524, 0.0307, 0.0364, 0.0454, 0.0528, 0.0441, 0.0517, 0.0518, },
[60] = {0.0500, 0.0512, 0.0301, 0.0355, 0.0454, 0.0512, 0.0441, 0.0500, 0.0493, },
[61] = {0.0469, 0.0491, 0.0297, 0.0334, 0.0443, 0.0496, 0.0435, 0.0484, 0.0478, },
[62] = {0.0442, 0.0483, 0.0290, 0.0322, 0.0444, 0.0486, 0.0432, 0.0481, 0.0472, },
[63] = {0.0418, 0.0472, 0.0284, 0.0307, 0.0441, 0.0470, 0.0424, 0.0470, 0.0456, },
[64] = {0.0397, 0.0456, 0.0279, 0.0296, 0.0433, 0.0456, 0.0423, 0.0455, 0.0447, },
[65] = {0.0377, 0.0446, 0.0273, 0.0286, 0.0426, 0.0449, 0.0422, 0.0448, 0.0438, },
[66] = {0.0360, 0.0437, 0.0270, 0.0276, 0.0419, 0.0437, 0.0411, 0.0435, 0.0430, },
[67] = {0.0344, 0.0425, 0.0264, 0.0268, 0.0414, 0.0427, 0.0412, 0.0436, 0.0424, },
[68] = {0.0329, 0.0416, 0.0259, 0.0262, 0.0412, 0.0417, 0.0408, 0.0424, 0.0412, },
[69] = {0.0315, 0.0408, 0.0254, 0.0256, 0.0410, 0.0408, 0.0404, 0.0414, 0.0406, },
[70] = {0.0303, 0.0400, 0.0250, 0.0250, 0.0400, 0.0400, 0.0400, 0.0405, 0.0400, },
[71] = {0.0297, 0.0393, 0.0246, 0.0244, 0.0390, 0.0392, 0.0396, 0.0396, 0.0394, },
[72] = {0.0292, 0.0385, 0.0242, 0.0238, 0.0381, 0.0384, 0.0393, 0.0387, 0.0388, },
[73] = {0.0287, 0.0378, 0.0238, 0.0233, 0.0372, 0.0377, 0.0389, 0.0379, 0.0383, },
};Multiplier to get dodge per agi from crit per agi:
1.1, --Warrior
1.0, --Paladin
1.6, --Hunter
2.0, --Rogue
1.0, --Priest
1.0, --Shaman
1.0, --Mage
1.0, --Warlock
1.7, --Druid
Monday Nov 23, 2015 at 00:16 GMT
Originally opened as https://github.com/ccshiro/cc-buglist/issues/2058
I can't definitely prove there is a problem but as I levelled an undead rogue, I noticed a peculiar thing: at level 2 I had 18.29% dodge. Low-level characters gain far more value from stats than high-level ones, that's for certain (that's the reason level 1 twinks work, here's an example), but I don't ever recall having such a high dodge chance when naked, low-level or not.
I was unable to find a formula that takes level into account when converting agility to dodge (or crit), but Wowwiki has something on the topic. Rogues do have better dodge:agility scaling than other classes, but that's not an enormous difference (then again, there's also the base dodge chance that seems to change depending on level, there's also a table for level 60 values and they are much different from listed level 70 values). With that in mind, an undead rogue (21 agility) starting with 18.05% dodge and 8.94% crit seems really weird when an undead warrior (18 agi) has 5.54% dodge and 5.48% crit and night elf druid (25 agility, better agility-scaling so you might even expect higher dodge/crit chance) has 7.56% dodge and 5.85% crit. Level 1 night elf rogue (28 agi) has a whopping 25.32% dodge and 12.08% crit. Even at level 10 a night elf rogue has 22.57% dodge and 9.8% crit (with weapon skill maxed it'd be 11.76%).
I can't find the formula or any reliable source (I doubt Wowwiki-contributors would research this in complete detail), but these numbers seem very much off to me. Certainly when comparing rogues to other classes whose numbers seem normal to me, although that should also be verified. The values at max level are at least in the correct league, although they might also be slightly off (night elf rogue with maxed skills has 3.78% crit and 8.56% dodge with their 163 base agility, while Wowwiki formula would result in 7.56% dodge: if Wowwiki is to be trusted for level 70 values, dodge chance at level 70 might or might not be correct depending on where that 1% difference comes from)
Related issue: #953