将自定义功能应用于vaex中的groupby [英] Apply custom function to groupby in vaex

问题描述

我想对 groupby 获得的每个单独的组应用一些自定义逻辑.在大熊猫中很容易做到.如何在vaex中将某些自定义功能应用于groupby创建的组?

I want to apply some custom logic to each individual group obtained by groupby. It is easy to do so in pandas. How to apply some custom function to groups created by groupby in vaex?

例如，假设我要查找每个组的最小索引和最大索引，然后基于该索引，对该组中存在的行进行一些操作.vaex有可能吗?

For example, suppose I want to find the min index and max index of each group and based on that, do some operation on the rows present in that group. Is this possible in vaex?

推荐答案

我认为vaex现在有意不支持此功能，例如，请参见此github问题 https://github.com/vaexio/vaex/issues/752 .

I think vaex intentionally doesn't support this now, see for example this github issue https://github.com/vaexio/vaex/issues/752.

这篇关于将自定义功能应用于vaex中的groupby的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！