Wine Vintage Chart

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wine vintage chart
question about logs (the maths type not the wood type)?

hi i have a column on chart titles logprice. the figures within the column are the natural log of the price of bordeaux wines relative to the price of the 1961 vintage. why does the variable logprice have the value of zero in 1961?? can anyone help. cheers

The answers simple. the log of 1 is zero. u mentioned that the column values are natural log of prices with respect to 1961 vintage. Thus prices of 1961 relative to itself is 1!

Vintage Chart Plus | Wine Spectator

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