galpy.df.diskdf.meanvR¶
-
diskdf.
meanvR
(R, romberg=False, nsigma=None, phi=0.0)[source]¶ NAME:
meanvRPURPOSE:
calculate <vR> at R by marginalizing over velocityINPUT:
R - radius at which to calculate <vR> (can be Quantity)OPTIONAL INPUT:
nsigma - number of sigma to integrate the velocities overKEYWORDS:
romberg - if True, use a romberg integrator (default: False)OUTPUT:
<vR> at RHISTORY:
2011-03-30 - Written - Bovy (NYU)