• Do you provide the data used to draw your charts?
• What does “clean data” mean?
• Why do some chart packages have statistical summaries?

Do you provide the data used to draw your charts?
Agreements with data vendors preclude us from re-offering data. Where data is in the public domain, we are willing to share links with subscribers as to where data can be found.
 

What does “clean data” mean?
We make every effort to find several sources for our historical data. We then compare each value from the various sources to arrive at the most likely value for each date. Our experience has taught us that there is no such thing as a perfect database. We are comfortable in saying our data comes close.
 

Why do some chart packages have statistical summaries?
Some chart packages that are drawn from “public domain” data include statistical summaries. Examples of such include many of the chart packages under our Economic section, like: money supply, unemployment insurance claims, the employment situation or GDP. We also include summary statistics for our rate of return charts. We do this because the reported number is often “in the news,” such as, the unemployment rate dropped to 5.6% or the S&P 500 is up 22.5% over the last 12 months.
 

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