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mode(x).mode [0]的含义是什么?(What is the meaning of mode(x).mode[0]?)

我正在尝试使用包含{small,medium,large}形式的值的python的pandas库来查找数据集的列(名为Outlet_Size)的模式,该格式对应于总共1000行以上的10个不同的插座存储。 在这里输入图像描述 。 对于每个商店类型沿着该列查找模式,使用以下代码:

确定每种插座类型(10种不同类型)

outlet_size_mode = data.pivot_table(values ='Outlet_Size',columns ='Outlet_Type',aggfunc =(lambda x:mode(x).mode [0]))

但是我无法理解使用lambda函数模式(x).mode [0]的格式。 那是什么意思?


I am trying to find mode along a column(named Outlet_Size) of a dataset using pandas library of python which contains values in the form of {small, medium,large} corresponding to 10 different outlet stores with total of 1000+ rows.enter image description here. For Finding the mode along that column for each store type the following code was used:

Determing the mode for each type of outlet(10 different types)

outlet_size_mode = data.pivot_table(values='Outlet_Size', columns='Outlet_Type',aggfunc=(lambda x:mode(x).mode[0]) ) .

However I am unable to understand the format of using the lambda function mode(x).mode[0]. What is the meaning of that?


原文:https://stackoverflow.com/questions/47950227
更新时间:2023-01-04 07:01

最满意答案

params [:campaign] [:adtag_attributes]是一个不是数组的散列,因此当它在散列上运行“each_with_index”方法时,它将“:code”符号视为索引并引发该错误。

你可以做到这一点

 params[:campaign][:adtag_attributes].each do |key,value|
    #some code
 end

只是在测试中改为跟随

params[:campaign][:adtag_attributes] = []
params[:campaign][:adtag_attributes] << somedata

希望这有效


params[:campaign][:adtag_attributes] is a hash not an array, so when it runs "each_with_index" method on the hash it sees ":code" symbol as the index and throws that error.

You can just do this

 params[:campaign][:adtag_attributes].each do |key,value|
    #some code
 end

just change to following in the test

params[:campaign][:adtag_attributes] = []
params[:campaign][:adtag_attributes] << somedata

hopefully this works

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