Python将数据行连接在一起 [英] Python join data lines together

问题描述

你好，我有数据线有几千行，分为偶数和奇数行，我找不到一个方法再次加入到同一行。读取文件并覆盖它是正常的或创建一个新文件。

我发现这个 example 打印单独的行，但无法将其写入文件。

我希望它像这样：

  Time = 1 Temperature1 = 24.75 Temperature2 = 22.69 Temperature3 = 20.19 RPM =  - 60.00 
时间= 2温度1 = 24.75温度2 = 22.75温度3 = 20.19 RPM = -60.00 
等... 
  

数据集示例：

 时间= 1温度1 = 24.75温度2 = 22.69温度3 = 20.19 
 RPM = -60.00 
时间= 2温度1 = 24.75温度2 = 22.75温度3 = 20.19 
 RPM = -60.00 
时间= 3温度1 = 24.75温度2 = 22.75温度3 = 20.19 
 RPM = -60.00 
时间= 4温度1 = 24.81温度2 = 22.81温度3 = 20.25 
 RPM = -60。 00 
时间= 5温度1 = 24.81温度2 = 22.81温度3 = 20.19 
 RPM = -60.00 
时间= 6温度1 = 24.81温度2 = 22.81温度3 = 20.19 
 RPM = -60.00 
时间= 7温度1 = 24.81温度2 = 22.81温度3 = 20.25 
 RPM = -60.00 
时间= 8温度1 = 24.81温度2 = 22.87温度3 = 20.25 
 RPM = -60.00 
时间= 9温度1 = 24.87温度2 = 22.87温度3 = 20.25 
 RPM = -60.00 
时间= 10温度1 = 24.87温度2 = 22.87温度3 = 20.25 
 RPM = -60.00 
  

解决方案

您可以使用％（模数）来确定线是奇数还是偶数。如果是平均值，则将最后一行和当前行合在一起。

 ＃将数据集用作字符串
 data_split = data.split（\\\
）
 
对于我的范围（len（data_split））：
如果i％2：
 lines = [data_split [i -1]，data_split [i]] 
 print.join（lines）
  

输出：

时间= 1 Temperature1 = 24.75 Temperature2 = 22.69 Temperature3 =
20.19 RPM = -60.00

时间= 2温度1 = 24.75温度2 = 22.75温度3 =
20.19 RPM = -60.00

时间= 3温度1 = 24.75温度2 = 22.75温度3 =
20.19 RPM = -60.00

...

Hello i have dataset a few thousand lines which is split in even and odd number lines and i can't find a way to join them together again in the same line. Reading the file and overwriting it is fine or making a new file.

I have found this example to print the seperate lines but can't get it to write it to file.

I would like it to look like this:

Time = 1 Temperature1 = 24.75 Temperature2 = 22.69 Temperature3 = 20.19 RPM = -60.00
Time = 2 Temperature1 = 24.75 Temperature2 = 22.75 Temperature3 = 20.19 RPM = -60.00
etc...

Example of dataset:

Time = 1 Temperature1 = 24.75 Temperature2 = 22.69 Temperature3 = 20.19
 RPM = -60.00
Time = 2 Temperature1 = 24.75 Temperature2 = 22.75 Temperature3 = 20.19
 RPM = -60.00
Time = 3 Temperature1 = 24.75 Temperature2 = 22.75 Temperature3 = 20.19
 RPM = -60.00
Time = 4 Temperature1 = 24.81 Temperature2 = 22.81 Temperature3 = 20.25
 RPM = -60.00
Time = 5 Temperature1 = 24.81 Temperature2 = 22.81 Temperature3 = 20.19
 RPM = -60.00
Time = 6 Temperature1 = 24.81 Temperature2 = 22.81 Temperature3 = 20.19
 RPM = -60.00
Time = 7 Temperature1 = 24.81 Temperature2 = 22.81 Temperature3 = 20.25
 RPM = -60.00
Time = 8 Temperature1 = 24.81 Temperature2 = 22.87 Temperature3 = 20.25
 RPM = -60.00
Time = 9 Temperature1 = 24.87 Temperature2 = 22.87 Temperature3 = 20.25
 RPM = -60.00
Time = 10 Temperature1 = 24.87 Temperature2 = 22.87 Temperature3 = 20.25
 RPM = -60.00

解决方案

You can use % (modulus) to determine if the line is odd or even. If it's even, then join together the last line and the current line.

# Using your dataset as a string
data_split = data.split("\n")

for i in range(len(data_split)):
    if i % 2:
        lines = [data_split[i-1], data_split[i]]
        print " ".join(lines)

Output:

Time = 1 Temperature1 = 24.75 Temperature2 = 22.69 Temperature3 = 20.19 RPM = -60.00

Time = 2 Temperature1 = 24.75 Temperature2 = 22.75 Temperature3 = 20.19 RPM = -60.00

Time = 3 Temperature1 = 24.75 Temperature2 = 22.75 Temperature3 = 20.19 RPM = -60.00

...

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