BRouter | BRouter 是一个 Kotlin 编写的面向模块 Android 路由库,支持: | Router library
kandi X-RAY | BRouter Summary
kandi X-RAY | BRouter Summary
BRouter 是一个 Kotlin 编写的面向模块 Android 路由库,支持:.
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QUESTION
I have to iterate some if-else
conditions for each row in dataframe
in python
.
If the first condition is satisfied for row1
, it will answer 'yes' or 'no' by adding one more column for that row and exit.
But if for the row 2
, with another other condition satisfied, it shouldn’t overwrite the first row’s ‘yes’ or ‘no’.
I want it to be preserved or we can say in second iteration it should check all if else conditions for only row2
and then row3
and so on.
To be precise, only one row will be check against all the condition and which ever condition satisfy, it will give the output by adding one more column for that row and exit.
I am new to python
and the code I wrote is not working.
I have written the below code. Kindly help me.
...ANSWER
Answered 2018-Jun-27 at 22:21You shouldn't need to iterate rows explicitly. In fact, you shouldn't need to calculate the same Boolean values multiple times.
If you wish to prioritise a particular assignment given a condition, you can do so explicitly. Here's one way using numpy.where
; we use ~
to indicate "negative".
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