A value is trying to be set on a copy of a slice from a DataFrame

A value is trying to be set on a copy of a slice from a DataFrame

df_delta_fred.delta_thk[df_delta_fred.delta_thk < 0] = 0

解决报错：

df_delta_fred.loc[(df_delta_fred.delta_thk < 0), 'delta_thk'] = 0

标签：df,DataFrame,fred,thk,value,delta,trying
来源： https://www.cnblogs.com/tuzichun/p/15341451.html