.find_dc_row

Binary search for the DC row in lexicographically sorted data

internal

The 'fftab' package stores Fourier coefficients in a tibble and
allows their manipulation in various ways. Functions are available for converting
between complex, rectangular ('re', 'im'), and polar ('mod', 'arg') representations,
as well as for extracting components as vectors or matrices. Inputs can include
vectors, time series, and arrays of arbitrary dimensions, which are restored
to their original form when inverting the transform. Since 'fftab' stores Fourier
frequencies as columns in the tibble, many standard operations on spectral data
can be easily performed using tidy packages like 'dplyr'.

Timothy H Keitt

fftab

Tidy Manipulation of Fourier Transformed Data

Timothy Keitt

.find_dc_row function

<dl><dt>df</dt>
<dd>A tibble or data.frame with <code>.dim_*</code> columns sorted lexicographically.</dd></dl>

Arguments

Binary search for the DC row in lexicographically sorted data — .find_dc_row

<dl>

<dt>df</dt>
<dd>A tibble or data.frame with <code>.dim_*</code> columns sorted lexicographically.</dd>

</dl>

.find_dc_row: Binary search for the DC row in lexicographically sorted data

Description

Usage

Value

Arguments