adding input optional parameters M,K to `autocorrelation_length_estimate`

core/autocorrelation.py

@@ -12,8 +12,10 @@ except ModuleNotFoundError:
     try:
         import emcee
         with_emcee = True
+        print('WARNING: could not find `lalinference.bayespputils` module, thus using `emcee` module to compute the autocorrelation.')
     except ModuleNotFoundError:
         with_homemade = True
+        print('WARNING: could not find `lalinference.bayespputils` nor `emcee` modules, thus using homemade functions to compute the autocorrelation.')
 
 # from lalinference.bayespputils import autocorrelation, autocorrelation_length_estimate
 
@@ -21,9 +23,9 @@ if with_lalinf:
     def autocorrelation(chain):
         return lalinfbut.autocorrelation(chain)
 
-    def autocorrelation_length_estimate(chain):
+    def autocorrelation_length_estimate(chain, acf=None, M=5, K=2):
         try:
-            L = lalinfbut.autocorrelation_length_estimate(chain)
+            L = lalinfbut.autocorrelation_length_estimate(chain, acf=acf, M=M, K=K)
         except lalinfbut.ACLError as e:
             cut.logger.warning(f'Could not compute autocorrelation length on the chain for because of the following error:\n{e}\nHence returning L={len(chain)}')
             L = len(chain)