Normalization Functions

I have a problem undestanding the use of the 'new' normalization functions. In contrast to similar statistic functions (StdDev, Variance, Correlation etc.) that expect data series as input the new ones expect there only a single value, e.g.

zscore(var Value, int TimePeriod): var

If I want to zscore e.g. the close of the actual bar over the last 10 periods, I set MyPrice = priceClose() and call

zscore(MyPrice, 10);

does it take automatically the last 10 periods of priceClose() for calculating mean and StdDev without defining a series before? If not what values does it take for calculating them?

Thanks, Sphin

Just the value, like priceClose(), that you want to normalize.