Our goal is to deliver the most accurate information and the most knowledgeable advice possible in order to help you make smarter buying decisions on tech gear and a wide array of products and services. ZDNet's editorial team writes on behalf of you, our reader. Indeed, we follow strict guidelines that ensure our editorial content is never influenced by advertisers. Neither ZDNet nor the author are compensated for these independent reviews. This helps support our work, but does not affect what we cover or how, and it does not affect the price you pay. ![]() When you click through from our site to a retailer and buy a product or service, we may earn affiliate commissions. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. If the quality level is less that the quality threshold, the output quality is set to bad, otherwise it is good.ZDNet's recommendations are based on many hours of testing, research, and comparison shopping. This quality level is expressed as a percentage of the window span. The quality level is calculated as the number of seconds that the signal had good quality over the window. On the quality - The quality is set based on the quality threshold. On the timestamp - The output time stamp is always set to the execute time. ”Kurtosis” port’s fields – The output value indicates the input signals kurtosis over the moving window set in the configuration. Skew” port’s fields – The output value indicates the input signals skewness over the moving window set in the configuration. ”Minimum” port’s fields – The smallest value in the input variable time window. “Maximum” port’s fields – The largest value in the input variable time window. ”Standard Deviation” port’s fields – The output value is the moving standard deviation of the signal over the window set in the configuration. ”Variance” port’s fields – The output value is the moving variance of the signal over the window set in the configuration. “Average” port’s fields – The output value is the calculated moving average of the signal over the window. Return to top Functions performed on tags If you have 10 Moving window blocks and you want to change the configured quality threshold and window span, you only have to change it in one place. The parameter value will not change during execution. On the first execute, the block will read the value(s) from the parameter field(s) and lock on that value. The block reads its parameters from the parameter port, if it's configured to do so. The parameter port does not have to be used. “Standard Deviation” port’s field name: Asset_STD During execution, the first value of the parameter field (that was used to substitute fixed values) is then used as the value for the window span and quality threshold During configuration, the parameter ports' fields can be used to substitute the fixed window span and quality thresholds values. ![]() There is also a parameter port of type double. All configured window spans must also be larger than 0 seconds. In order for this block to run, the input port must be connected to a valid source that contains only double fields. The default window span and quality threshold is either the last configured window span and quality threshold or, if no new value was specified, it takes on the default block window span and quality threshold values. The output fields will have the default window span and quality threshold. If a new field is added to the input port the 7 output fields will be created in their respective output ports. The 3 quality fields have the following postfixes appended to the configured output field name (by default the configured output field has the same name as the input field): The 7 output fields have the following postfixes appended to the configured output field name (by default the configured output field has the same name as the input field name): There are 7 output fields and 3 quality fields for every input field. ![]() The input port may only contain fields of type double. Statistical block (Moving window) Input/Output ports The window moves forward as time progresses with the one end anchored to current execution time. The output of the block is respectively, the quality, average, variance, standard deviation, max, min, skew and kurtosis of each input variable, calculated over a moving window. ![]() Return to Overview of blocks Moving Statistics block Description This block calculates the moving statistics of the input fields.
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