如何使与列对齐的标题与行对齐?

时间:2019-10-29 14:14:29

标签: python-3.x pandas

我正在尝试将多行标题设为单行标题,我已经尝试在read_csv函数上添加标题,但是它似乎没有用,在我显示的列上也存在额外的空白我不知道是什么原因造成的,这是csv im试图制作https://gist.github.com/ktisha/c21e73a1bd1700294ef790c56c8aec1f的数据框 这是我在Spyder上编码的结果的显示,您可以看到标题仍显示为不同的行,我希望它显示为单行标题[#1 ....#2 ...#3 .. .. etc],有什么方法可以从标题中删除[#number。]?如果是,如何?然后您还可以看到,有一个我不想的列与其他列(多余的列)相距遥远

enter image description here

import csv
import pandas as pd
with open("D:\python projects\pima-indians-diabetes.csv") as f:
    d = pd.read_csv(f , delimiter = ',',header = [0,1,2,3,4,5,6,7,8])
    df = pd.DataFrame(d)
    print (df[:4])

1 个答案:

答案 0 :(得分:1)

编辑:

所以我现在加载真实数据并执行以下操作:

headers = pd.read_csv('pima-indians-diabetes.csv',nrows=9,header=None).loc[:,0].str.replace('# ','')
df = pd.read_csv('pima-indians-diabetes.csv',names=headers, delimiter=',',skiprows=9)
print(df)

1。),因此对于变量“标头”,我仅加载了包含csv文件中标头的前9行。

2。)然后,我仅使用列“ 0”,并根据需要替换那里的“#”。

3。)对于第二次加载,我跳过了前9行,仅加载数据行,并将标头作为“名称”参数。

在执行之前,请确保将数据存储位置更改为您的位置!

两次加载数据可能不是最佳实践,而是我现在想到的唯一处理方法。

结果:

     1. Number of times pregnant  2. Plasma glucose concentration a 2 hours in an oral glucose tolerance test  3. Diastolic blood pressure (mm Hg)  4. Triceps skin fold thickness (mm)  ...  6. Body mass index (weight in kg/(height in m)^2)  7. Diabetes pedigree function  8. Age (years)  9. Class variable (0 or 1)
0                              6                                                148                                                             72                                   35  ...                                               33.6                          0.627              50                           1
1                              1                                                 85                                                             66                                   29  ...                                               26.6                          0.351              31                           0
2                              8                                                183                                                             64                                    0  ...                                               23.3                          0.672              32                           1
3                              1                                                 89                                                             66                                   23  ...                                               28.1                          0.167              21                           0
4                              0                                                137                                                             40                                   35  ...                                               43.1                          2.288              33                           1
5                              5                                                116                                                             74                                    0  ...                                               25.6                          0.201              30                           0
6                              3                                                 78                                                             50                                   32  ...                                               31.0                          0.248              26                           1
7                             10                                                115                                                              0                                    0  ...                                               35.3                          0.134              29                           0
8                              2                                                197                                                             70                                   45  ...                                               30.5                          0.158              53                           1
9                              8                                                125                                                             96                                    0  ...                                                0.0                          0.232              54                           1
10                             4                                                110                                                             92                                    0  ...                                               37.6                          0.191              30                           0
11                            10                                                168                                                             74                                    0  ...                                               38.0                          0.537              34                           1
12                            10                                                139                                                             80                                    0  ...                                               27.1                          1.441              57                           0
13                             1                                                189                                                             60                                   23  ...                                               30.1                          0.398              59                           1
14                             5                                                166                                                             72                                   19  ...                                               25.8                          0.587              51                           1
15                             7                                                100                                                              0                                    0  ...                                               30.0                          0.484              32                           1
16                             0                                                118                                                             84                                   47  ...                                               45.8                          0.551              31                           1
17                             7                                                107                                                             74                                    0  ...                                               29.6                          0.254              31                           1
18                             1                                                103                                                             30                                   38  ...                                               43.3                          0.183              33                           0
19                             1                                                115                                                             70                                   30  ...                                               34.6                          0.529              32                           1
20                             3                                                126                                                             88                                   41  ...                                               39.3                          0.704              27                           0
21                             8                                                 99                                                             84                                    0  ...                                               35.4                          0.388              50                           0
22                             7                                                196                                                             90                                    0  ...                                               39.8                          0.451              41                           1
23                             9                                                119                                                             80                                   35  ...                                               29.0                          0.263              29                           1
24                            11                                                143                                                             94                                   33  ...                                               36.6                          0.254              51                           1
25                            10                                                125                                                             70                                   26  ...                                               31.1                          0.205              41                           1
26                             7                                                147                                                             76                                    0  ...                                               39.4                          0.257              43                           1
27                             1                                                 97                                                             66                                   15  ...                                               23.2                          0.487              22                           0
28                            13                                                145                                                             82                                   19  ...                                               22.2                          0.245              57                           0
29                             5                                                117                                                             92                                    0  ...                                               34.1                          0.337              38                           0
..                           ...                                                ...                                                            ...                                  ...  ...                                                ...                            ...             ...                         ...
738                            2                                                 99                                                             60                                   17  ...                                               36.6                          0.453              21                           0
739                            1                                                102                                                             74                                    0  ...                                               39.5                          0.293              42                           1
740                           11                                                120                                                             80                                   37  ...                                               42.3                          0.785              48                           1
741                            3                                                102                                                             44                                   20  ...                                               30.8                          0.400              26                           0
742                            1                                                109                                                             58                                   18  ...                                               28.5                          0.219              22                           0
743                            9                                                140                                                             94                                    0  ...                                               32.7                          0.734              45                           1
744                           13                                                153                                                             88                                   37  ...                                               40.6                          1.174              39                           0
745                           12                                                100                                                             84                                   33  ...                                               30.0                          0.488              46                           0
746                            1                                                147                                                             94                                   41  ...                                               49.3                          0.358              27                           1
747                            1                                                 81                                                             74                                   41  ...                                               46.3                          1.096              32                           0
748                            3                                                187                                                             70                                   22  ...                                               36.4                          0.408              36                           1
749                            6                                                162                                                             62                                    0  ...                                               24.3                          0.178              50                           1
750                            4                                                136                                                             70                                    0  ...                                               31.2                          1.182              22                           1
751                            1                                                121                                                             78                                   39  ...                                               39.0                          0.261              28                           0
752                            3                                                108                                                             62                                   24  ...                                               26.0                          0.223              25                           0
753                            0                                                181                                                             88                                   44  ...                                               43.3                          0.222              26                           1
754                            8                                                154                                                             78                                   32  ...                                               32.4                          0.443              45                           1
755                            1                                                128                                                             88                                   39  ...                                               36.5                          1.057              37                           1
756                            7                                                137                                                             90                                   41  ...                                               32.0                          0.391              39                           0
757                            0                                                123                                                             72                                    0  ...                                               36.3                          0.258              52                           1
758                            1                                                106                                                             76                                    0  ...                                               37.5                          0.197              26                           0
759                            6                                                190                                                             92                                    0  ...                                               35.5                          0.278              66                           1
760                            2                                                 88                                                             58                                   26  ...                                               28.4                          0.766              22                           0
761                            9                                                170                                                             74                                   31  ...                                               44.0                          0.403              43                           1
762                            9                                                 89                                                             62                                    0  ...                                               22.5                          0.142              33                           0
763                           10                                                101                                                             76                                   48  ...                                               32.9                          0.171              63                           0
764                            2                                                122                                                             70                                   27  ...                                               36.8                          0.340              27                           0
765                            5                                                121                                                             72                                   23  ...                                               26.2                          0.245              30                           0
766                            1                                                126                                                             60                                    0  ...                                               30.1                          0.349              47                           1
767                            1                                                 93                                                             70                                   31  ...                                               30.4                          0.315              23                           0

第一答案:

样本数据:

0    1    2    3    4    5    6    7        8
0   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN    first
1   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN  second
2   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN    thrid
3   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN        4
4   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN        5
5   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN        6
6   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN        7
7   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN        8
8   NaN  NaN  NaN  NaN  NaN  NaN  NaN  NaN        9
9     d    d    d    d    d    d    d    d        d
10    d    d    d    d    d    d    d    d        d
11    d    d    d    d    d    d    d    d        d
12    d    d    d    d    d    d    d    d        d

代码:

import pandas as pd
headers = pd.read_csv('test.csv',header=None).loc[0:8,8].tolist()
df = pd.read_csv('test.csv',names=headers, skiprows=9)
print(df)

结果:

  first second  thrid  4  5  6  7  8  9
0     d       d     d  d  d  d  d  d  d
1     d       d     d  d  d  d  d  d  d
2     d       d     d  d  d  d  d  d  d
3     d       d     d  d  d  d  d  d  d