readtextcf: Read correlator data from single file

Description Usage Arguments Value Author(s) See Also

View source: R/readutils.R

Description

Reads arbitrary number of samples for a complex correlation function from a text file.

Usage

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readtextcf(file, Time = 48, sym = TRUE, path = "", skip = 1,
  check.t = 0, ind.vector = c(2, 3), symmetrise = TRUE, stride = 1,
  avg = 1, Nmin = 4, autotruncate = TRUE)

Arguments

file

filename of file to read from.

Time

time extent of the correlation function

sym

if TRUE average C(+t) and C(-t), otherwise C(+t) and -C(-t). Averaging can be switched off using the symmetrise option.

path

the path to the files.

skip

number of lines to skip at beginning of file

check.t

if set to an integer value larger than zero the function will assume that in the corresponding column of the file the Euclidean time is counted and it will check whether the maximum in this column is identical to Time-1.

ind.vector

index vector of length 2 with the indices of real and imaginary values of correlator, respectivley.

symmetrise

if set to TRUE, the correlation function will be averaged for t and Time-t, with the sign depending on the value of sym. Note that currently the correlator with t-values larger than Time/2 will be discarded.

stride

Integer. Read only subset of files with corresponding stride.

avg

Integer. Average over successive number samples

Nmin

Integer. Minimal number of measurements that must remain after sparsification and averaging. Default equals to 4.

autotruncate

Boolean. Whether to autotruncate or not

Value

returns a list with two arrays cf and icf with real and imaginary parts of the correlator, and integers Time, nrStypes=1 and nrObs=1. Both of the arrays have dimension c(N, (Time/2+1)), where N is the number of measurements (gauges). Time is the time extent, nrStypes the number of smearing levels and nrObs the number of operators, both of which are currently fixed to 1.

Author(s)

Carsten Urbach, curbach@gmx.de

See Also

readcmidatafiles, readbinarydisc, readcmidisc, readcmicor, readbinarycf


hadron documentation built on Jan. 13, 2021, 8 a.m.