You can learn a lot about what's going on with large, high frequency data collection from a self-selected and non-representative population.
But sending messages across the country means going through sub-station transformers, which contain an air gap that cannot pass on the high-frequency data.
"The Fed is just as beholden to the short-term, high-frequency data as it ever was," he wrote in a note to clients.
A graduate-level textbook about econometric and statistical methods to analyze high frequency data.
Principal Component Analysis of High Frequency Data, with Dacheng Xiu, Journal of the American Statistical Association, 2019, 114, 287-303.
Testing for Jumps in Noisy High Frequency Data, with Jean Jacod and Jia Li, Journal of Econometrics, 2012, 168, 207-222.
"The poor number confirms what higher frequency data has been suggesting, that more weakness in the economy is likely," said Chester Liaw, an economist at Forecast in Singapore.
Both techniques utilize high frequency data by measuring stock prices every 5 minutes from 1997-2008.
Although the Imaging FlowCytobot doesn't detect toxicity, its benefits include rapid data processing, high-frequency sample collection and analysis (three samples per hour), multi-species identification capabilities, and the ability to be deployed at sea for up to six months at a time.
The growing ubiquity of metabolomic techniques has facilitated high frequency time-course data collection for an increasing number of applications.
