map dictionary of function names and arguments

Question

I have to execute a large number of functions, with a variety of different arguments. How can I map a function over a dictionary of functions w/ lists of arguments

Rather than:

a = np.array([1,2,3,4,5,6])

np.mean(a)
np.quantile(a,q=0.5)
np.quantile(a,q=0.5)

Unpack and execute across all combinations in dictionary:

f_dict = { 'maximum':{} ,
          'quantile': [{'q':"0.5"},{'q':'0.95'}]}

You have a dictionary of str objects mapped to other dict and list objects.... no functions in your dict... did you mean to use functions in your dict? What is the point of this dict? — juanpa.arrivillaga
– juanpa.arrivillaga, Commented Jun 26, 2020 at 19:05
The answer below should give you the desired result, but unless you want to load the dictionary from like a config file or some external source I would advise you to stick to regular function calls for better readability. — michalwa
– michalwa, Commented Jun 26, 2020 at 19:27

Anwarvic · Accepted Answer · 2020-06-26 19:15:23Z

1

First of all, I recommend using the actual functions as the keys for the dictionary. Also, I recommend formalizing the dictionary values to be a list of dictionaries.

If you did both of these changes, then you can use something like so:

f_dict = { np.mean:[{}] ,
          np.quantile: [{'q':0.25}, {'q':0.5}]}

print([func(a, **arg) for func, args in f_dict.items() for arg in args])
#[3.5, 2.25, 3.5]

answered Jun 26, 2020 at 19:15

Anwarvic

13.2k5 gold badges60 silver badges72 bronze badges

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

1 Comment

Anwarvic Over a year ago

I believe the OP wanted to create a structure where he/she can apply all the functions with arguments all at once. Like map() but with the additional, changeable arguments

Collectives™ on Stack Overflow

map dictionary of function names and arguments

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related