Create Dictionary of two numpy.ndarray?

Question

I have two numpy.ndarray

[[' THE OLD TESTAMENT ']
[' SEAN SONG ']
[' CITY WALK ']]

and

[[' This is the name of an Old Testament ']
 [' Hello this is great ']
[' Wait the way you are doing ']]

I want to convert these ndarray to dictionary.

 {
"THE OLD TESTAMENT": "This is the name of an Old Testament",
"SEAN SONG": "Hello this is great",
"CITY WALK": Wait the way you are doing 
 }

I am using the code written below

keys = df.as_matrix()
print (keys)
values = df1.as_matrix()
print (values)
new_dict = dict(izip(keys, values))

The real question is how did you end up with these horrible arrays? — timgeb
– timgeb, Commented Nov 29, 2018 at 7:29

jezrael · Accepted Answer · 2018-11-29 07:35:16Z

2

Converting to arrays is not necessary, use iloc for select first column with zip:

new_dict = dict(zip(df.iloc[:, 0], df1.iloc[:, 0]))

Or select columns by names:

new_dict = dict(zip(df['col'], df1['col']))

answered Nov 29, 2018 at 7:35

jezrael

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Comments

juanpa.arrivillaga · Accepted Answer · 2018-11-29 07:42:08Z

Squeeze your arrays first:

In [1]: import numpy as np

In [2]: keys = np.array(
   ...:     [[' THE OLD TESTAMENT '],
   ...:     [' SEAN SONG '],
   ...:     [' CITY WALK ']]
   ...: )

In [3]: values = np.array(
   ...:     [[' This is the name of an Old Testament '],
   ...:      [' Hello this is great '],
   ...:     [' Wait the way you are doing ']]
   ...: )

In [4]: dict(zip(keys.squeeze(), values.squeeze()))
Out[4]:
{' CITY WALK ': ' Wait the way you are doing ',
 ' SEAN SONG ': ' Hello this is great ',
 ' THE OLD TESTAMENT ': ' This is the name of an Old Testament '}

Or just use slicing:

In [5]: dict(zip(keys[:,0], values[:,0]))
Out[5]:
{' CITY WALK ': ' Wait the way you are doing ',
 ' SEAN SONG ': ' Hello this is great ',
 ' THE OLD TESTAMENT ': ' This is the name of an Old Testament '}

min2bro · Accepted Answer · 2018-11-29 07:34:38Z

0

keyh=[[' THE OLD TESTAMENT '],
[' SEAN SONG '],
[' CITY WALK ']]

valueh=[[' This is the name of an Old Testament '],
 [' Hello this is great '],
[' Wait the way you are doing ']]

dictionary = dict(zip([item[0] for item in keyh], [item[0] for item in valueh]))

Output

{
"THE OLD TESTAMENT": "This is the name of an Old Testament",
"SEAN SONG": "Hello this is great",
"CITY WALK": "Wait the way you are doing"
 }

answered Nov 29, 2018 at 7:34

min2bro

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Comments

Raj Sekhar · Accepted Answer · 2018-11-29 08:43:32Z

0

keys = [[' THE OLD TESTAMENT '],[' SEAN SONG '],[' CITY WALK ']]

values = [[' This is the name of an Old Testament '], [' Hello this is great '],[' Wait the way you are doing ']]


keys = [x[0] for x in keys]

values = [x[0] for x in values]


dictionary = dict(zip(keys, values))

edited Nov 29, 2018 at 8:43

Raj Sekhar

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answered Nov 29, 2018 at 7:36

Ashok Krishna

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