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Short helpfile for action TD_CHISQUARED
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The following arguments are compulsory: 

                MINIMUM - The minimum of the chi-squared distribution. 
                  SIGMA - The \f$\sigma\f$ parameter of the chi-squared distribution 
                          given as a positive number. 
                  KAPPA - The \f$k\f$ parameter of the chi-squared distribution given 
                          as positive integer larger than 2. 

In addition you may use the following options: 

          SHIFT_TO_ZERO - ( default=off ) Shift the minimum value of the target 
                          distribution to zero. This can for example be used to avoid negative 
                          values in the target distribution. If this option is active the 
                          distribution will be automatically normalized. 
              NORMALIZE - ( default=off ) Renormalized the target distribution over 
                          the intervals on which it is defined to make sure that it is 
                          properly normalized to 1. In most cases this should not be needed as 
                          the target distributions should be normalized. The code will 
                          issue a warning (but still run) if this is needed for some 
                          reason. 
    WELLTEMPERED_FACTOR - Broaden the target distribution such that it is taken as 
                          [p(s)]^(1/\f$\gamma\f$) where \f$\gamma\f$ is the well tempered factor given here. 


