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Statistical measure of the degree to which the movements of two variables (stock/option/convertible prices or returns) are related. See: Correlation coefficient.


The relationship between two variables during a period of time, especially one that shows a close match between the variables' movements. For example, all utility stocks tend to have a high degree of correlation because their share prices are influenced by the same forces. Conversely, gold stock price movements are not closely correlated with utility stock price movements because the two are influenced by very different factors. The concept of correlation is frequently used in portfolio analysis. See also serial correlation.


In investment terms, correlation is the extent to which the values of different types of investments move in tandem with one another in response to changing economic and market conditions.

Correlation is measured on a scale of - 1 to +1. Investments with a correlation of + 0.5 or more tend to rise and fall in value at the same time. Investments with a negative correlation of - 0.5 to - 1 are more likely to gain or lose value in opposing cycles.


a statistical term that describes the degree of association between two variables. When two variables tend to change together, then they are said to be correlated, and the extent to which they are correlated is measured by means of the CORRELATION COEFFICIENT.


A former appraisal term, replaced by reconciliation.
References in periodicals archive ?
Using Pearson's correlation matrix to carry out the analysis includes a certain bias relative to the metric of the variables (Elosua Oliden and Zumbo, 2008; Morales Vallejo, 2006),and it contributes to the obtainment of these low indexes, because in this case the value of the coefficients is underestimated in relation to the polychoric correlation matrix.
01 level Table 2: correlation Matrix of Variables COMP SIZE VSAT MSAT HSGPA COMP 1 SIZE -.
From the correlation matrix (17), we can see that the Brownian motions of the six countries are all positively correlated.
Then, the M-LOWA operator with maximum entropy also employs to aggregate the relationship matrix of customer needs to prioritize each solution scheme as well as the correlation matrix and finally forms the results in 2-tuples.
Before fitting a model of co-regionalisation, we checked the auto-variograms of the leading PCs, which were calculated from the general correlation matrix.
k] of the correlation matrix defines a basis vector [[phi].
Table 3 shows the eigenvectors of the correlation matrix that represent the matrix of the weights for the PCs, which demonstrates the relative importance of each standardized parameter in the PC calculations (He, Ma 2010).
The correlation matrix provides the input matrix for the principal component analysis.
Results of the laboratory tests and correlation matrix between the data of the laboratory tests and the chronometric performances in the track for BMX riders of national level.
Hence a correlation matrix is worked out between them and presented in Table (I).

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