>  Docs Center  >  Libraries  >  Daithi  >  THRESHOLD_QUANTILE

THRESHOLD_QUANTILE

THRESHOLD_QUANTILE

Name


    THRESHOLD_QUANTILE

Purpose


    This function estimates the quantiles of the given thresholds in the input
    data array.

Category


    Statistics

Calling Sequence


    result = threshold_quantile( data, threshold )

Inputs


    DATA: A numerical array of data, of size N_DATA.
    THRESHOLD: A numerical vector listing thresholds to find in DATA and for
        which to estimate their quantiles. Of length N_THRESHOLD

Keyword Parameters


    PRESORTED: If set then the function assumes that the values in DATA have
        already been sorted in ascending order, thus running more efficiently.
        The default is to assume that they have not been sorted and thus to
        spend some time sorting them.

Outputs


    RESULT: A numerical array containing the N_THRESHOLD quantile values
        corresponding to the N_THRESHOLD thresholds in DATA as specified in
        THRESHOLD.

Uses


    -

Procedure


    This function essentially inverts the method used in
    quantile_threshold.pro.

Example


    data = randomn( 2, 100 )
    threshold = [ -1., 1. ]
    result = threshold_quantile( data, threshold )

Modification History


    Written by: Daithi Stone (dstone@lbl.gov), 2012-06-01
    Modified: DAS, 2012-07-05 (Added PRESORTED keyword)



© 2019 Harris Geospatial Solutions, Inc. |  Legal
My Account    |    Store    |    Contact Us