I want to read columns from a .csv
file.
Here's the code which I tried:
inputFileName = "some.csv"
dataset = pd.read_csv(inputFileName)
dataset = np.array(dataset)
ihr = np.array(dataset[:])
x = dataset[:, 0]
y = dataset[:,1]
The intention of the code is to read first column values and second column values from some.csv
and store it as x and y respectively. But, it fails to do so.
When I execute this, this is what I get:
['2.070\t72.2892\t0' '2.900\t72.2892\t0' '3.730\t68.1818\t0' ...,
'29562.020\t74.0741\t0' '29562.830\t75\t0' '29563.630\t73.1707\t0']
Traceback (most recent call last):
File "/home/ubuntu/Desktop/major_thesis/ECG/transpose_ihr.py", line 32, in <module>
y = dataset[:, 1]
IndexError: index 1 is out of bounds for axis 1 with size 1
The problem with this code is it reads the whole data file and store it as dataset. So what should I do if I want to read those 2 columns individually
Thanks in advance
我认为您有separator
tab
,因此需要将read_csv
默认sep=','
(id 无sep
参数)更改为sep='\\t'
:
dataset = pd.read_csv(inputFileName, sep='\t')
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