Question

我有两个Dataframe，它们正在for循环内。当我尝试附加两个数据框时，在行之间填充了列名。我做了一些研究并使用了列表，但是我无法使列表适合我，这是我的代码，

def generatesalesreport3():
if g_month is not None and g_year is not None:
    if (g_month == '1: January to March'):
        r_month = ['January','February','March']
        r_year = int(g_year)
    elif(g_month == '2: April to June'):
        r_month = ['April', 'May', 'June']
        r_year = int(g_year)
    elif(g_month == '3: July to Septempber'):
        r_month = ['July', 'August', 'September']
        r_year = int(g_year)
    else:
         r_month = ['October', 'November', 'December']
         r_year = int(g_year)

    ra = list()
    rb= list()
    for qmonth in r_month:
        monnum = month_dict[qmonth]
        resultb1 = df_b1.loc[(df_b1['month'] == monnum) & (df_b1['year'] == r_year)]
        resultb2 = df_b2.loc[(df_b2['month'] == monnum) & (df_b2['year'] == r_year)]
        resultb1 = resultb1.append(resultb2)
        print(resultb1)

Image to the result of above code please check

所以，我的要求是我不想在结果之间获得这些列名，之后，我将整个数据框合并为一个数据框，因此我必须根据 Model 进行一些操作>列。

Answer 1

只需从“ resultb2”数据框中过滤出列，然后追加即可。喜欢：

resultb1 = resultb1.append(resultb2[["column1","column2","column3",......]])
print(resultb1)

在循环中添加数据框时，列名会重复出现吗？

1 个答案: