Find a minimal value in each array in Python

Question

Suppose I have the following data in Python 3.3:

my_array = 
   [{'man_id': 1, '_id': ObjectId('1234566'), 'type': 'worker', 'value': 11}, 
   {'man_id': 1, '_id': ObjectId('1234577'), 'type': 'worker', 'value': 12}],

   [{'man_id': 2, '_id': ObjectId('1234588'), 'type': 'worker', 'value': 11}, 
    {'man_id': 2, '_id': ObjectId('3243'), 'type': 'worker', 'value': 7},
    {'man_id': 2, '_id': ObjectId('54'), 'type': 'worker', 'value': 99},
    {'man_id': 2, '_id': ObjectId('9879878'), 'type': 'worker', 'value': 135}],
   #.............................
   [{'man_id': 13, '_id': ObjectId('111'), 'type': 'worker', 'value': 1}, 
    {'man_id': 13, '_id': ObjectId('222'), 'type': 'worker', 'value': 2},
    {'man_id': 13, '_id': ObjectId('3333'), 'type': 'worker', 'value': 9}]

There are 3 arrays. How do I find an element in each array with minimal value?

Antimony · Accepted Answer · 2012-11-07 01:39:04Z

5

[min(arr, key=lambda s:s['value']) for arr in my_array]

answered Nov 7, 2012 at 1:39

Antimony

39.8k13 gold badges103 silver badges115 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Artsiom Rudzenka · Accepted Answer · 2012-11-07 01:41:09Z

1

Maybe something like that is acc for you:

for arr in my_array:
   minVal = min([row['value'] for row in arr])
   print [row for row in arr if row['value'] == minVal]

answered Nov 7, 2012 at 1:41

Artsiom Rudzenka

29.3k5 gold badges36 silver badges53 bronze badges

Collectives™ on Stack Overflow

Find a minimal value in each array in Python

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related