REDUCEME: Classified list

INPUT/OUTPUT

interchange_32_64: Transforms REDUCEME images from 32 bits to 64 bits architecture (and viceversa).
leefits: Reads a FITS file and creates a new file with REDUCEME format.
leefits_new: Reads a FITS file and creates a new file with REDUCEME format.
portable: Transforms REDUCEME images into a more portable ASCII format.
readfits: Reads a FITS file and creates a new file with REDUCEME format (this program is obsolete; use leefits).
replacefits: Put data from a REDUCEME file into a previously existing FITS file. Note: this program requires the FITSIO subroutine package
sunalpha: Transforms REDUCEME images from sun architecture to alpha architecture (and viceversa).
writeascii: Reads a file with REDUCEME format and creates a new file with ASCII format.
writefits: Reads a file with REDUCEME format and creates a new file with FITS format. Note: this program requires the FITSIO subroutine package
writefits_log: Reads a file with REDUCEME format and creates a new file with FITS format and CTYPE1="WAVE-LOG". Note: this program requires the FITSIO subroutine package

EXAMINATION & STATISTICS

exhead: Shows and changes image header information. Image data are not modified.
exheads: Shows image header information without prompting.
histogram: Performs a histogram of data tabulated in a single column ASCII file.
istat: Provides some statistics of an image.

ARITHMETIC & MANIPULATIONS

addnf: Add several images, taking into account offsets in the spatial direction.
adnch: Add channels of an image, generating a new image with the same NSCAN and variable NCHAN.
adnhand: Create a new spectrum by adding spectra from different images (with interactive monitoring of the S/N ratio).
adnsc: Add scans of an image, generating a new image with the same NCHAN and variable NSCAN.
adnscgrad: Add scans of an image, generating a new image with the same NCHAN and variable NSCAN.
basicred: Determine the BIAS level and output the useful region of a frame after dividing it by the required flatfields. This program also generates the error frames (gain and readout noise of the employed detector must be known).
binning: Perform a constant binning in the spatial and wavelength direction.
broadima: Broaden selected spectra of an image.
broadres: Broadens selected spectra of an image to produce spectra at a fixed spectral resolution. It needs a table with velocity dispersions for each spectrum (scan).
broadsp: Broaden a single spectrum by convolving with a gaussian. If the input file is an image, the program extracts a single spectrum prior broadening.
corrfft: Cross-correlates spectra using FFT.
fillimage: Fill an image region by extrapolating the signal in a contigous region. The program detects the transition between the extrapolated region and the fitted region as a sudden signal change.
fit1dpol: Fits 1-D polynomials.
fit2dpol: Fits 2-D polynomials.
fit2dspl: Fits 2-D splines and local polynomials.
gain: Measure the gain using several flatfield images.
genimage: Creates an artificial image using, if necessary, regions from other images and/or tabulated data from ASCII files.
gluesc: Takes different spectra and creates a new frame (in which each individual spectrum correspond to the former single spectra).
growx: Expands a single spectrum into an image.
growy: Expands a single spatial cross section into an image.
ifilter: Applies a filter to an image.
imath: Performs arithmetic with images, spectra, spatial cross sections and constants.
interp: Interpolation/extrapolation of data in an image by using polynomials.
interpmove: Interpolation/extrapolation of data in an image by using polynomials around a previously fitted polynomial.
irevx: Reverses an image (or spectrum) in the X-direction.
irevy: Reverse an image (or spatial direction) in the Y-direction.
isubset: Produces a subset of an image.
movel.f: Computation of radial velocity and velocity dispersion using the MOVEL and OPTEMA algorithms
multfit: perform simultaneous fits.
resample: Transforms an image with an initial STWV and DISP into another image with a different STWV and DISP.
resample_flux: Transforms an image with an initial wavelength calibration (linear or log-linear) into another image with a new and linear wavelength calibration.
rotate: Rotates an image.
tfourier: Filters a spectrum using FFT.

DISTORTION

cdisc: Correct C-distortion using the polynomial fits of fitcdis.
fitcdis: Calculates the C-distortion of an image.
fitcdis: Calculates the C-distortion of an image.
nortwi: Wavelength normalization of twilight flatfields calculating C-distortion with cross correlation.
sdistor: Corrects S-distortion.

GRAPHIC DISPLAY

plots: General program to produce line plots and display images.
plotsp3d: Plots successive spectra with a 3-D perspective.
stplot: Plots the spectrophotometric spectra.

ERROR HANDLING

esterror: Creates an error file from an initial image, taking into account the r.m.s. measured in each spectrum in a given wavelength range.
generror: Creates an error file from an initial image, taking into account the readout noise and gain of the detector.
randsc: Creates a fake image through bootstraping from an original image and its associated error frame. In each pixel, the original signal is randomly modified using the correspoding error.
snratio: Determines the S/N ratio as a function of binning in the spatial direction.

COSMIC RAYS

autocos2: Automatic removal of cosmic rays in many similar images simultaneously (maximum number of images=50, maximum number of cosmic rays=1000).
autocos: Automatic removal of cosmic rays in many similar images simultaneously (maximum number of images=50, maximum number of cosmic rays=1000). The program detects cosmic rays by comparing the number of counts in the same pixel in all the available frames.
cleanest: Automatic and interactive removal of cosmic rays.

WAVELENGTHS

air2vacuum: Transforms wavelengths from air to vacuum using the equations from Greisen et al. 2002 (Representation of spectral coordinates in FITS).
calambda: determine the wavelength as a function of the channel number, using the wavelength calibration polynomial.
findarc: Interactive arc line identification.
findmax: Automatic detection of line peaks in a spectrum.
findmax: Automatic detection of line peaks in a spectrum and estimation of the peaks through the fit to a gaussian
fitlin: Calculates the wavelength calibration polynomials.
predchan: determine the final position (channel and wavelength) of a pixel in the wavelength axis corresponding to a given channel position (known before the C-distortion correction and the wavelength calibration).
rebincw: Performs the wavelength calibration of an image by using the polynomial fits obtained with fitlin.
rvshift: Applies a radial velocity shift to an image.
rvshiftrot: Applies radial velocity shifts to the different scans of an image. This program can be used to correct 2D spectroscopic images from rotation curves. It is similar to rvshift, but using different radial velocities for each scan (these velocities are read from an ASCII file).
rvz: Computes the corresponding radial velocity for a given redshift.
shiftch: Applies a constant shift (channels) to an image.
shpol: Determines the new coefficients of a polynomial after changing the x-axis origin.
testwc: Test the wavelength calibration by measuring the positions of sky lines.
wcnoarc: Performs the wavelength calibration of an image by using the polynomial fits obtained with fitlin for other frames.

FLUX CALIBRATION

fcalspl: Generates a flux calibration spectrum using splines.
fcalsplnew: Generates a flux calibration spectrum using splines, allowing an absolute flux calibration.
prfcal: Creates a mean flux calibration curve from individual curves, and generates an image containing the mean curve (as the first spectrum) and the individual ones (in successive spectra).

EXTINCTION CORRECTION

airmass: Calculate the airmass for fixed observing conditions.
corrext: Corrects spectra from atmospheric and interstellar extinction.

SKY SUBTRACTION

skysubm: Calculates and subtracts a sky image by fitting polynomials to each channel.

MEASUREMENT

index: Measures indices in a fully calibrated image. The program requires an external file containing the index definitions. For this purpose, the program looks first for a file called 'myindex.dat' in the current directory. If this file does not exist, the program then looks for a file called 'index.dat' (located in the subdirectory 'files' of the distribution package). If this last file is also missing, the program stops.
midelines: Measures lines (EW) in a spectrum selecting regions manually.
miderot: Determines the rotation curve of a galaxy by using cross correlation.
midez: Determines redshifts by using cross correlation.

MISCELLANY

chancoor: Transform r.a. and dec. coordinates from an initial equinox to another equinox.
creahelp: Creates the help file 'helpred.txt', and the auxiliary files 'allfiles.tex', and libraries.tex.
ecugal: Transforms r.a. and dec. to galactic coordinates.
fitdata: Fits polynomials using tabulated data.
fitshead: Reads a FITS file and creates an output file with keyword information.
fitstex: Reads the output from fitshead and generates an output LaTeX file with a table.
giveerrf.f: Given a character string corresponding to a file name, this program returns the expected error frame associated to that file.
interlines: Interpolates lines in a spectrum by using data from a similar spectrum.
leeposs: Reads FITS images created with getimage from the Digital Sky Survey, allowing the determination of accurate coordinates and plotting of marks.
loglin: Rebins data from a linear wavelength coverage to logarithmic scale
mcolumns: Manipulate columns of data in ASCII files.
offindex: Computes index offsets due to differences in the spectrophotometric system.
outfitshead: Outputs the whole header of a FITS file into a text file.
rvel: Determines the Earth`s velocity at a fixed time to correct radial velocities.
rvrelat: Transforms radial velocities computed from classical formulae into radial velocities computed with relativistic expressions.
testrandom: Program to test the random number generator.
vaucoul: Fits a de Vaucouleurs profile to a galaxy frame.