Statistical Correlations

REPRESENTATION

correl — statistical correlation representation

DESCRIPTION

The correl representation is used to characterize the degree of statistical correlation for successive moments. Data tokens for correl decimal values ranging between -1 (perfect negative correlation) and 1 (perfect positive correlation).

FILE TYPE

It is recommended that files containing predominantly correl data should be given names with the distinguishing `.cor' extension.

SIGNIFIERS

The following table summarizes the correl mappings of signifiers and signifieds.

0-9 correlation values specified as integer or real value . decimal point; null token + plus sign (optional) - minus sign —– ——————————————————-

Summary of correl Signifiers

EXAMPLES

A sample document is given below:

**correl *C: *M4/4 . 0.0 +0.3037 +.52 0.6 0.211 . -.241 -0.17 -1 0.221 . *- ————

Notice that melodic accent values can be either real or integer values. Rests are represented by the single letter `r'.

PERTINENT COMMANDS

The following Humdrum command produces correl data as output:

correl calculate numerical correlation between two spines – ————————————— —————————————————-

TANDEM INTERPRETATIONS

The following tandem interpretations can be used in conjunction with **correl:

meter signatures *M6/8 key signatures *k[f#c#] key *c#: —————— ————

Tandem interpretations for correl