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Pivot a section (or anomaly) to a station x depth matrix

Source: R/transect.R
cc_transect_matrix.Rd

The shape a heatmap wants: z[[depth]][[station]], with x the station distances and y the depth bins. Returning it from here rather than from each app is what lets ctd-transects ship a matrix as JSON and ctd-viz hand the same numbers to an interpolator.

Usage

cc_transect_matrix(section, value = "value", depths = NULL)

Arguments

section

from cc_transect_section() or cc_anomaly().

value

column to pivot ("value", or "anomaly" / "anomaly_sd").

depths

optional depth bins to force (keeps matrices aligned across cruises); defaults to those present.

Value

List of x (dist_km), sta, y (depth_m) and z (matrix rows = depths, cols = stations).