Editing ROOT Analysis (section)

==Data Editing==

=== Remove Extraneous Text ===

After the text file is copied onto a USB drive, the data can be moved to a third computer for analysis. This is done because the first two computers are in single-user mode and could not run the programs needed to analyze the data. Initially, the file will look like this:

 64 bytes from 192.168.1.2: icmp_seq=0 ttl=255 time=.576 ms 
 64 bytes from 192.168.1.2: icmp_seq=1 ttl=255 time=.587 ms 
 64 bytes from 192.168.1.2: icmp_seq=2 ttl=255 time=.591 ms 
 64 bytes from 192.168.1.2: icmp_seq=3 ttl=255 time=.511 ms

However, the only data that is necessary is the trial number and the round-trip time. Now, we can parse through the file and remove the extra text that is not needed. Listed below are the necessary steps:

'''Steps'''

1. Mount the USB

2. Copy the files onto the analysis computer using ''cp /media/'''USB Name'''/'''File Name''' .'' (The period is in the line of code)

3. Now remove the extra text using ''cat '''File Name''' | sed 's/= /g' | awk '{print $6 " " $10}' '' 

The following should be the only data displayed: 

 0 .576
 1 .587
 2 .591
 3 .511

4. A new file needs to be created with this new formatting, use: ''cat '''File Name''' | sed 's/= /g' | awk '{print $6 " " $10}' > '''New File Name''' '' 

5. To check if the file saved properly use: ''cat '''New File Name''' ''

6. Now we will use the "emacs" editor to clear up any extraneous text. Type ''emacs ''New File Name''''

7. Use this editor to remove extra text at the bottom and top of the file, then save 

8. The file is now ready for data analysis