Representation: **correl


Humdrum Representation for 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***

SEE ALSO

`` barlines, correl, **simil, simil``