better way to drop nan rows in pandas

Question

 I figured out a way to drop nan rows from a pandas dataframe. Given a dataframe dat with column x which contains nan values,is there a more elegant way to do drop each row of data which has a nan value in the x column?

dat = dat[np.logical_not(np.isnan(dat.x))]
dat = dat.reset_index(drop=True)

Answer 1

Use dropna:

dat.dropna()

You can pass param how to drop if all labels are nan or any of the labels are nan

dat.dropna(how='any')    #to drop if any value in the row has a nan
dat.dropna(how='all')    #to drop if all values in the row are nan