See the difference April replacing January makes,(Extrapolate) http://finviz.com/chart.ashx?t=rex&ty=c&ta=1&p=d&s=l http://www.barchart.com/chart.php?sym=ZCN13&style=technical&template=&p=DO&d=M&sd=&ed=&size=M&log=0&t=BAR&v=2&g=1&pct=1&evnt=1&late=1&o1=ZKN13&o2=&o3=&sh=100&indicators=&addindicator=&submitted=1&fpage=&txtDate=#jump Extrapolation is the process of estimating, beyond the original observation interval, the value of a variable on the basis of its relationship with another variable.
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