Difficulty levels in Civ4

[Jamesds]

Is there a table comparing the difficulty settings anywhere?
If not, could someone compile one using the XML file? I dont understand some of the terms used.
Here is an excerpt for Settler:

<HandicapInfo>
			<Type>HANDICAP_SETTLER</Type>
			<Description>TXT_KEY_HANDICAP_SETTLER</Description>
			<Help>TXT_KEY_HANDICAP_SETTLER_HELP</Help>
			<iFreeWinsVsBarbs>5</iFreeWinsVsBarbs>
			<iAnimalAttackProb>0</iAnimalAttackProb>
			<iStartingLocPercent>10</iStartingLocPercent>
			<iGold>0</iGold>
			<iFreeUnits>24</iFreeUnits>
			<iUnitCostPercent>20</iUnitCostPercent>
			<iResearchPercent>60</iResearchPercent>
			<iDistanceMaintenancePercent>45</iDistanceMaintenancePercent>
			<iNumCitiesMaintenancePercent>40</iNumCitiesMaintenancePercent>
			<iMaxNumCitiesMaintenance>4</iMaxNumCitiesMaintenance>
			<iCivicUpkeepPercent>50</iCivicUpkeepPercent>
			<iInflationPercent>60</iInflationPercent>
			<iHealthBonus>4</iHealthBonus>
			<iHappyBonus>6</iHappyBonus>
			<iAttitudeChange>2</iAttitudeChange>
			<iNoTechTradeModifier>100</iNoTechTradeModifier>
			<iTechTradeKnownModifier>-100</iTechTradeKnownModifier>
			<iUnownedTilesPerGameAnimal>100</iUnownedTilesPerGameAnimal>
			<iUnownedTilesPerBarbarianUnit>150</iUnownedTilesPerBarbarianUnit>
			<iUnownedWaterTilesPerBarbarianUnit>3000</iUnownedWaterTilesPerBarbarianUnit>
			<iUnownedTilesPerBarbarianCity>160</iUnownedTilesPerBarbarianCity>
			<iBarbarianCreationTurnsElapsed>50</iBarbarianCreationTurnsElapsed>
			<iBarbarianCityCreationTurnsElapsed>55</iBarbarianCityCreationTurnsElapsed>
			<iBarbarianCityCreationProb>4</iBarbarianCityCreationProb>
			<iAnimalBonus>-70</iAnimalBonus>
			<iBarbarianBonus>-40</iBarbarianBonus>
			<iAIAnimalBonus>-70</iAIAnimalBonus>
			<iAIBarbarianBonus>-40</iAIBarbarianBonus>
			<iStartingDefenseUnits>0</iStartingDefenseUnits>
			<iStartingWorkerUnits>0</iStartingWorkerUnits>
			<iStartingExploreUnits>0</iStartingExploreUnits>
			<iAIStartingUnitMultiplier>0</iAIStartingUnitMultiplier>
			<iAIStartingDefenseUnits>0</iAIStartingDefenseUnits>
			<iAIStartingWorkerUnits>0</iAIStartingWorkerUnits>
			<iAIStartingExploreUnits>0</iAIStartingExploreUnits>
			<iBarbarianDefenders>1</iBarbarianDefenders>
			<iAIDeclareWarProb>25</iAIDeclareWarProb>
			<iAIWorkRateModifier>0</iAIWorkRateModifier>
			<iAIGrowthPercent>160</iAIGrowthPercent>
			<iAITrainPercent>160</iAITrainPercent>
			<iAIWorldTrainPercent>160</iAIWorldTrainPercent>
			<iAIConstructPercent>160</iAIConstructPercent>
			<iAIWorldConstructPercent>160</iAIWorldConstructPercent>
			<iAICreatePercent>160</iAICreatePercent>
			<iAIWorldCreatePercent>160</iAIWorldCreatePercent>
			<iAICivicUpkeepPercent>100</iAICivicUpkeepPercent>
			<iAIUnitCostPercent>100</iAIUnitCostPercent>
			<iAIUnitSupplyPercent>50</iAIUnitSupplyPercent>
			<iAIUnitUpgradePercent>45</iAIUnitUpgradePercent>
			<iAIInflationPercent>100</iAIInflationPercent>
			<iAIWarWearinessPercent>100</iAIWarWearinessPercent>
			<iAIPerEraModifier>0</iAIPerEraModifier>
			<Goodies>
				<GoodyType>GOODY_HIGH_GOLD</GoodyType>
				<GoodyType>GOODY_HIGH_GOLD</GoodyType>
				<GoodyType>GOODY_HIGH_GOLD</GoodyType>
				<GoodyType>GOODY_HIGH_GOLD</GoodyType>
				<GoodyType>GOODY_LOW_GOLD</GoodyType>
				<GoodyType>GOODY_LOW_GOLD</GoodyType>
				<GoodyType>GOODY_MAP</GoodyType>
				<GoodyType>GOODY_SETTLER</GoodyType>
				<GoodyType>GOODY_SETTLER</GoodyType>
				<GoodyType>GOODY_WARRIOR</GoodyType>
				<GoodyType>GOODY_WARRIOR</GoodyType>
				<GoodyType>GOODY_SCOUT</GoodyType>
				<GoodyType>GOODY_WORKER</GoodyType>
				<GoodyType>GOODY_WORKER</GoodyType>
				<GoodyType>GOODY_EXPERIENCE</GoodyType>
				<GoodyType>GOODY_HEALING</GoodyType>
				<GoodyType>GOODY_TECH</GoodyType>
				<GoodyType>GOODY_TECH</GoodyType>
				<GoodyType>GOODY_TECH</GoodyType>
				<GoodyType>GOODY_TECH</GoodyType>
			</Goodies>
			<FreeTechs>
				<FreeTech>
					<TechType>TECH_THE_WHEEL</TechType>
					<bFreeTech>1</bFreeTech>
				</FreeTech>
				<FreeTech>
					<TechType>TECH_AGRICULTURE</TechType>
					<bFreeTech>1</bFreeTech>
				</FreeTech>
				<FreeTech>
					<TechType>TECH_MINING</TechType>
					<bFreeTech>1</bFreeTech>
				</FreeTech>
			</FreeTechs>
			<AIFreeTechs/>
		</HandicapInfo>

Some things are self explanatory such as free techs and goodies. Others are more obscure (AIPerEraModifier ? )
I would be grateful if someone could explain these terms!

 

[Jamesds]

anyone have a clue?

 

[KrikkitTwo]

Here (think its pre-1.61, so there are probably errors)

I forget all the terms, but the AI per Era Modifier is one that no one seemed to figure out

I believe Train refers to units, World... refers to things like World Wonders
Construct=Buildings
Create=?? Projects ??