tcoinchooser: tweak heuristic scoring. - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
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DIR commit e864fa50882db90df50e6e0240f55197b28097ed
DIR parent f409b5da40e607819f94093f4ca6a91f8a2b71f0
HTML Author: SomberNight <somber.night@protonmail.com>
Date: Thu, 20 Jun 2019 17:47:43 +0200
coinchooser: tweak heuristic scoring.
ttransactions without any change now get better scores.
ttransactions with really small change get worse scores.
Diffstat:
M electrum/coinchooser.py | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
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DIR diff --git a/electrum/coinchooser.py b/electrum/coinchooser.py
t@@ -413,8 +413,13 @@ class CoinChooserPrivacy(CoinChooserRandom):
tx, change_outputs = tx_from_buckets(buckets)
change = sum(o.value for o in change_outputs)
# Penalize change not roughly in output range
- if change < min_change:
+ if change == 0:
+ pass # no change is great!
+ elif change < min_change:
badness += (min_change - change) / (min_change + 10000)
+ # Penalize really small change; under 1 mBTC ~= using 1 more input
+ if change < COIN / 1000:
+ badness += 1
elif change > max_change:
badness += (change - max_change) / (max_change + 10000)
# Penalize large change; 5 BTC excess ~= using 1 more input