
ECA-100 Class B
Moments
Moments provide a collection of sample moments of price log returns for given sample spaces. Each sample space is monotonically expanded (ECA-100:B1) or continuously updated by maintaining recent 300 values (ECA-100:B2) when a new value is added.
ECA-100:B1 : Cumulative Sample Moments
sample mean : the first sample raw moment representing the average/central value of a list of price log return values
sample variance : the second sample central moment showing how much data are dispersed from the mean of the values
sample skewness : the third sample central moment checking whether or not data distribution is symmetric
sample kurtosis : the fourth sample central moment measuring how long or short "tails" data distribution has
ECA-100:B2 : Moving sample moments
sample mean : the first sample raw moment representing the average/central value of a list of price log return values
sample variance : the second sample central moment showing how much data are dispersed from the mean of the values
sample skewness : the third sample central moment checking whether or not data distribution is symmetric
sample kurtosis : the fourth sample central moment measuring how long or short "tails" data distribution has
ECA-100 is the first real time streaming product that offers both event and time series analytics in cryptocurrency (and finance). ExxaBlock is a pioneer in large-scale real time streaming event analytics in finance. ECA-100 supports cache API for direct access to ECA-100 cache servers with low-latency, constant-jitter connectivity and high-throughput I/O computation. Through dedicated or shared connections to the servers, customers can perform time-sensitive and/or high-throughput computational tasks. Concise Binary Object Representation (CBOR) is used to minimize the network communication overhead caused by message encoding, decoding, and transmission. Compared to JSON text messages, CBOR messages require 70% less size in ECA-100.
ECA-100 is available on public clouds, private clouds, and customer on-premise data centers. ECA-100 can also be integrated into customer systems.
To view our real time streaming quotes view our beta link below: