1Blurb:: 2Specify the number of basis functions to be used in the random field representation. 3THIS IS AN EXPERIMENTAL CAPABILITY. 4 5Description:: 6This control allows the user to specify the number of basis functions to be 7used in the random field representation (e.g. either a Karhunen-Loeve or Principal Components expansion). 8Typically, a small number of basis functions (3-5) will be sufficient to represent a significant 9amount of the variance in the response field. However, this depends on the particulars of the problem. 10THIS IS AN EXPERIMENTAL CAPABILITY UNDER ACTIVE DEVELOPMENT. 11 12<b> Default Behavior </b> 13If the user specifies neither \c trunction_tolerance nor \c expansion_bases, then 14the number of expansion bases that captures 95% of the variance will be used. 15 16 17Topics:: 18 19Examples:: 20 21 22Theory:: 23Faq:: 24See_Also:: 25