Measuring the phase difference between two periodical signals is often required for a science such as meteorology, computing, and communications. An oscilloscope offers a quick and simple way to make ...

The product moment correlation coefficient is often used even for ordinal data with only a few scale steps. This procedure may lead to biased results, where the bias depends on the number of scale ...

Professional managers often observe that during times of market stress (such as in 2008), correlations between asset classes tend to converge. Most asset allocation models are based on certain ...

The comparison indicator is a technical tool that analyzes relationships between two or more securities, indices, or markets. It compares prices, volume, and/or volatility, determining which ...

Take a quick look at the two panels of Figure 1 and estimate the correlation for the two funds in both panels. Really, please do it now. What's your gut feel of the correlation of each set? If you are ...

Mounting evidence suggests that understanding how the brain encodes information and performs computations will require studying the correlations between neurons. The recent advent of recording ...

Investors have long desired to outperform “the market,” but they are currently using a methodology that has become a bit stale. A dynamic and newly preferred method has developed in academia, and it ...

Traditional inequality measures fail to capture the geographical distribution of income. The failure to consider such distribution implies that, holding income constant, different spatial patterns ...