>>> import pandas as pd
>>> df = pd.read_csv('data.csv', sep=',')
>>> df
    'Set'     'Rx'     'Traffic'     'Modulation'
0   -67.0   -64.35         15.00     '64-QAM 2/3'
1   -68.0   -65.35         15.00     '16-QAM 3/4'
2   -69.0   -66.85         14.78     '64-QAM 2/3'
3   -70.0   -67.60         15.42     '64-QAM 2/3'
4   -71.0   -68.85         15.04     '64-QAM 2/3'
5   -72.0   -70.35         15.04     '16-QAM 3/4'
6   -73.0   -70.85         15.04     '16-QAM 3/4'
7   -74.0   -71.35         15.28     '16-QAM 3/4'
8   -75.0   -72.60         12.35     '64-QAM 2/3'
9   -76.0   -73.10         11.38     '16-QAM 3/4'
10  -77.0   -74.60         11.64     '16-QAM 3/4'
11  -78.0   -75.60          7.76     '16-QAM 1/2'
12  -79.0   -76.85          7.76     '16-QAM 1/2'
13  -80.0   -77.85          7.52     '16-QAM 1/2'
14  -81.0   -79.35          5.85       'QPSK 3/4'

df = pd.read_csv('apple.csv', index_col='Date', parse_dates=True)
new_sample_df = df.loc['2012-Feb':'2017-Feb', ['Close']]

new_sample_df = df.iloc[0:14, ['Rx']]
TypeError: cannot perform reduce with flexible type

df.set_index("'Set'")[["'Rx'","'Traffic'"]].plot(legend=True)

In [26]: df = pd.read_csv(r'C:Tempdata.csv', quotechar="'")

In [27]: df
Out[27]:
     Set     Rx  Traffic  Modulation
0  -67.0 -64.35    15.00  64-QAM 2/3
1  -68.0 -65.35    15.00  16-QAM 3/4
2  -69.0 -66.85    14.78  64-QAM 2/3
3  -70.0 -67.60    15.42  64-QAM 2/3
4  -71.0 -68.85    15.04  64-QAM 2/3
5  -72.0 -70.35    15.04  16-QAM 3/4
6  -73.0 -70.85    15.04  16-QAM 3/4
7  -74.0 -71.35    15.28  16-QAM 3/4
8  -75.0 -72.60    12.35  64-QAM 2/3
9  -76.0 -73.10    11.38  16-QAM 3/4
10 -77.0 -74.60    11.64  16-QAM 3/4
11 -78.0 -75.60     7.76  16-QAM 1/2
12 -79.0 -76.85     7.76  16-QAM 1/2
13 -80.0 -77.85     7.52  16-QAM 1/2
14 -81.0 -79.35     5.85    QPSK 3/4

In [28]: df.columns
Out[28]: Index(['Set', 'Rx', 'Traffic', 'Modulation'], dtype='object')

df.set_index('Set')[['Rx','Traffic']].plot(legend=True, grid=True)

'Set','Rx','Traffic','Modulation'
-67.0,-64.35,15.0,'64-QAM 2/3'
-68.0,-65.35,15.0,'16-QAM 3/4'
-69.0,-66.85,14.78,'64-QAM 2/3'
-70.0,-67.6,15.42,'64-QAM 2/3'
-71.0,-68.85,15.04,'64-QAM 2/3'
-72.0,-70.35,15.04,'16-QAM 3/4'
-73.0,-70.85,15.04,'16-QAM 3/4'
-74.0,-71.35,15.28,'16-QAM 3/4'
-75.0,-72.6,12.35,'64-QAM 2/3'
-76.0,-73.1,11.38,'16-QAM 3/4'
-77.0,-74.6,11.64,'16-QAM 3/4'
-78.0,-75.6,7.76,'16-QAM 1/2'
-79.0,-76.85,7.76,'16-QAM 1/2'
-80.0,-77.85,7.52,'16-QAM 1/2'
-81.0,-79.35,5.85,'QPSK 3/4'