Compare commits

...

3 Commits

5 changed files with 46 additions and 43 deletions

View File

@ -29,7 +29,6 @@ func RunAuction(g BidderGenerator) (float64, Bidder) {
return prevBid, highBidder return prevBid, highBidder
} }
/** /**
* RunAuctionVerbosely simulates a single-bid second-price auction with no * RunAuctionVerbosely simulates a single-bid second-price auction with no
* reserve price between all bidders emitted by the provided generator, * reserve price between all bidders emitted by the provided generator,
@ -39,7 +38,7 @@ func RunAuction(g BidderGenerator) (float64, Bidder) {
* Use CappedBidderGenerator to limit the size of the auction and therefore * Use CappedBidderGenerator to limit the size of the auction and therefore
* the number of bidders on the list. * the number of bidders on the list.
*/ */
func RunAuctionVerbosely(g BidderGenerator) float64, []Bidder { func RunAuctionVerbosely(g BidderGenerator) (float64, []Bidder) {
var bidders []Bidder var bidders []Bidder
for b, ok := g.Generate(); ok; b, ok = g.Generate() { for b, ok := g.Generate(); ok; b, ok = g.Generate() {
bidders = append(bidders, b) bidders = append(bidders, b)

View File

@ -57,8 +57,9 @@ type Bidder struct {
/** /**
* ValueBelief returns how much the bidder *thinks* the item is worth to them. * ValueBelief returns how much the bidder *thinks* the item is worth to them.
* The actual value to them is b.Value. * The actual value to them is b.Value.
*/
func (b Bidder) ValueBelief() float64 { func (b Bidder) ValueBelief() float64 {
return b.Value + b.Irrationality; return b.Value + b.Irrationality
} }
/** /**
@ -79,7 +80,7 @@ func (b Bidder) BidCeiling() float64 {
* than their calculated ceiling if they had the money to do so, but they don't. * than their calculated ceiling if they had the money to do so, but they don't.
*/ */
func (b Bidder) CashCapped() bool { func (b Bidder) CashCapped() bool {
return b.ValueBelief() > b.Cash; return b.ValueBelief() > b.Cash
} }
/** /**

View File

@ -12,7 +12,7 @@ type Distribution interface {
* Draw returns the next float64 from the distribution and true, or * Draw returns the next float64 from the distribution and true, or
* zero and false if the distribution is exhausted or otherwise unusable. * zero and false if the distribution is exhausted or otherwise unusable.
*/ */
Draw() float64, bool Draw() (float64, bool)
} }
/** /**
@ -23,7 +23,7 @@ type BidderGenerator interface {
* Generate returns the next Bidder and true, or a zero Bidder and false if * Generate returns the next Bidder and true, or a zero Bidder and false if
* the generator is exhausted or otherwise unusable. * the generator is exhausted or otherwise unusable.
*/ */
Generate() Bidder, bool Generate() (Bidder, bool)
} }
/** /**
@ -53,7 +53,7 @@ func (b *BiddersFromDistributions) Generate() (Bidder, bool) {
return Bidder{}, false return Bidder{}, false
} }
return Bidder { return Bidder{
Value: value, Value: value,
Irrationality: irrationality, Irrationality: irrationality,
Cash: cash, Cash: cash,
@ -76,7 +76,7 @@ type NormalDistribution struct {
* Draw implements Distribution. * Draw implements Distribution.
*/ */
func (n *NormalDistribution) Draw() (float64, bool) { func (n *NormalDistribution) Draw() (float64, bool) {
return n.Rand.NormFloat64() * n.StdDev + n.Mean, true return n.Rand.NormFloat64()*n.StdDev + n.Mean, true
} }
/** /**
@ -88,7 +88,7 @@ type ConstDistribution float64
* Draw implements Distribution. * Draw implements Distribution.
*/ */
func (c ConstDistribution) Draw() (float64, bool) { func (c ConstDistribution) Draw() (float64, bool) {
return (float64)c, true return float64(c), true
} }
/** /**

3
go.mod Normal file
View File

@ -0,0 +1,3 @@
module git.chromaticdragon.app/kistaro/auctionsim
go 1.20