getcollabels#

Purpose#

Returns the unique set of column labels and corresponding key values for a categorical variable.

Format#

{ labels, keys } = getColLabels(X, columns)#
Parameters:

  • X (NxK dataframe) – data with metadata.

  • columns (scalar or string) – Name or index of the categorical variable in X to get labels from.

Returns:

  • labels (string array) – Categorical labels assigned to variables specified by columns.

  • keys (vector) – Integer key values corresponding to categorical labels assigned to the variables in X specified by columns.

Examples#

// Load data
fname = getGAUSSHome("examples/yarn.xlsx");
yarn = loadd(fname, "cat(yarn_length) + cat(amplitude) + cat(load) + cycles");

// Get column labels for yarn_length
{ labels, keys } = getColLabels(yarn, "yarn_length");

// Print results
sprintf("%10s %10s", "Key", "Labels");
sprintf("%10d %10s", keys, labels);

The code above prints the following table:

Key     Labels

  0       high
  1        low
  2        med

See also

Functions setColLabels()

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