2013 jul 01 gold vs silver scatterplot

Equation update 2014 Jan 1: for at least 2 weeks this has been a very good fit. ln silver = gold x 3/2635 + Phi (or just use 1297/810, golden ratio isn't an easy constant to find in some calculator programs).

Equations with more recent data: 2013 Dec 17: 4.881 now works better than 4.604. For at least 10 weeks 4.86 had been working as well. Currently this rewrites the equation replacing the 4.604 term in the picture. Also this expresses a relationship (never the gold/silver ratio!) of ln silver = gold x 1.1385 / 1000 + 317/200 (approximately). This equation was giving me answers for silver within about 15% of 1% or 3 pennies off when tested.

 

Big picture: entire bull market, flic.kr/p/f5bHkJ

This picture, equations:

mapping gold price to silver price:

silver = 4.604 x e ^ (gold x 1.1385 / 1000)

mapping silver price to gold price:

gold = 1000 x Ln (silver / 4.604) / 1.1385

R^2 = 0.977031 : may see +/- 8% difference to computed silver price from gold price,

may see 4% deviation mapping silver to gold prices

Data:

www.fxhistoricaldata.com/download/XAGUSD?t=day for daily prices, silver, USD

www.fxhistoricaldata.com/download/XAUUSD?t=day for daily prices, gold, USD

change 'USD' to CAD, AUD, EUR etc for that currency. You can also change XAUUSD for example to USDCAD and it's just a forex-pair.

Longer time-frame: flic.kr/p/f4cm89 .955 r-squared back to 2011 october

Done