There exist some model-free programs for analysis
* Modelfree (Palmer et al. 1991; Mandel et al. 1995)- most commonly used program in the literature is the Modelfree program* Dasha (Orekhov et al. 1995a)- two local optimisation algorithms are available.
* DYNAMICS (Fushman et al. 1997)
* Tensor 2 (Blackledge et al. 1998; Cordier et al. 1998; Dosset et al. 2000; Tsan et al. 2000).