readV2A: Read a NWZ V2A acceleration record (3D-BLOCK, 1 file = 3...
In gmsp: Ground Motion Signal Processing

readV2A

R Documentation

Read a NWZ V2A acceleration record (3D-BLOCK, 1 file = 3 components).

Description

Each component is a sequential block opened by ⁠Corrected accelerogram⁠ (case-insensitive). Within a block, header ends 10 lines after ⁠Displacement:⁠. Body has 10 values per row in fixed-width form; "stuck" negatives are split before parsing. Each component vector is truncated at its own ⁠Number of points⁠ value.

Usage

readV2A(file)

Arguments

file

Path to the .V2A file.

Details

OCIDs come from ⁠Component <X>⁠ lines in each block.

Value

LONG data.table(t, OCID, s).

Examples

file <- tempfile(fileext = ".V2A")
writeLines(c(
  "Corrected Accelerogram", "Component H1", "at 0.01 sec intervals",
  "Number of points 4", "Displacement:", rep("header", 10), "1 2 3 4",
  "Corrected Accelerogram", "Component H2",
  "Number of points 4", "Displacement:", rep("header", 10), "2 3 4 5",
  "Corrected Accelerogram", "Component UP",
  "Number of points 4", "Displacement:", rep("header", 10), "3 4 5 6"
), file)
readV2A(file)

gmsp documentation built on July 18, 2026, 5:07 p.m.