parse_fluorimeter_output

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parse_fluorimeter_output

Parse fluorimeter spectra

Keywords
manip, file, IO
Usage
parse_fluorimeter_output(spec_file = NULL, adjust = TRUE,
  file_type = c("auto", "FelixGXv4.1.0.3096", "Felix32v1.20", "manual"))
Arguments
spec_file
Path to a *.txt file as a character object.
adjust
A logical indicating of whether (default) or not acquisition time should be reset to have 0 (zero) coincide with the addition of dithionite (see 'Details' section).
file_type
A string specifying whether or the file was created using Felix GX or Felix 32 or is a "manual" tab delimited file.
Details

A function to read fluorimeter output directly. Intended as a helper function to scramblase activity determinations from dithionite assays. The function is currently capable to deal with input derived from QuantaMaster instruments (Photon Technology International, Inc., Edison, New Jersey)running software versions FelixGX v4.1 (see parse_felix_gx_output) and Felix32 v1.20 (see parse_felix_32_output). The format used in a given file is divined from the data structure and appropriate internal parsing functions are called. If requested the time point of dithionite addition to a sample is determined using wmtsa-supplied methodology and the acquisition time reset accordingly (0 henceforth corresponds to the time of addition).

Value

A data frame with two columns:

Time.in.sec
Numeric. Number of seconds since the start of experiment.
Fluorescence.Intensity
Numeric. Intensity of fluorescence (relative scale, no official unit).
For Felix GX, if the file contains the information, the return value will also have anattribute WavelengthsInNanometres, which contains the excitation and emission wavelengths.

See Also

scramblase_assay_input_validation, parse_felix_gx_output, parse_felix_32_output, parse_manual_output

Aliases
  • parse_fluorimeter_output
Examples
library(magrittr)
# Extract example data
analysis_dir <- file.path(tempdir(), "flippant-case-study")
fluor_file <- extract_case_study_data(analysis_dir, "wildtypeEx1_0.txt")
# Parse an exemplary file
parse_fluorimeter_output(fluor_file) %>%
  str()
Documentation reproduced from package flippant, version 1.1.0, License: GPL (>= 3)

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