Welcome to indexf’s documentation!

indexf is a program written in C++ by Nicolás Cardiel (Universidad Complutense de Madrid) to measure line-strength indices in fully calibrated FITS spectra.

Documentation outline

• Program description
  • Introduction
  • Error estimation
• Index definitions
• License
• Installation
• Using the program
  • Warning and error codes
• Examples
  • A very simple example
  • Using an associated image with random errors
  • Estimating signal-to-noise ratios
  • Simulating signal-to-noise ratios
  • Using a fixed radial velocity
  • Using variable radial velocities
  • Appending additional information in the program output
  • Using indexf in scripts
  • Plotting
• References