Remove bracket of a array python

Question

In here, i want to ask how to remove bracket of a array in python. This is my following code:

import pandas as pd
import numpy as np
df = pd.read_csv('data.csv', index_col=0, header=0)
X = np.array(df.ix[:,0:29])
Y = np.array(df.ix[:,29:30])
Y
Out[55]:
array([[ 1],
       [ 2],
       [ 3],
       ..., 
       [35],
       [36],
       [37]], dtype=int64)

The desired output is following below:

Y
Out[55]:
array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10,....])

I already tried to use np.array, however it did not work.

Mangu Singh Rajpurohit · Accepted Answer · 2015-11-16 05:06:50Z

4

Check if it works

X = np.array(df.ix[:,0:29])
Y = np.array(df.ix[:,29:30])
Y = Y[0]

answered Nov 16, 2015 at 5:06

Mangu Singh Rajpurohit

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Comments

hpaulj · Accepted Answer · 2015-11-16 07:32:10Z

2

Y = df.ix[:,29:30].values.ravel()

df is a dataframe; df.ix[:,29:30] a slice; df.ix[].values the values as a numpy array. Use .ravel() (or .flatten()) to convert it from 2d to 1d as needed.

answered Nov 16, 2015 at 7:32

hpaulj

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Comments

furas · Accepted Answer · 2015-11-16 05:27:07Z

1

Y = np.array(df.ix[:,29:30])
Y.shape = (len(Y))
Y

answered Nov 16, 2015 at 5:27

furas

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