CODEWITHSUNDEEP
pythonpython-3.xnumpy
Manish
Manish

Reputation: 49

How to list all values greater than a specific value from an array in python

What i have done so far is Sort out the Top 3 position of values of an array, but i am looking out to get the only values which are more than 0.20..... in Descending order.

label = np.array(genres)
print(label)
#OUTPUT:  [0.1892372  0.29031774 0.19473006 0.01859367 0.10489976 0.20222157]
label = label.argsort()[::-1][:3]

Output i am getting is :

Output:
[1 5 2]

Output looking for :

label = [0.29031774 0.20222157]
[1 5]

Upvotes: 2

Views: 1100

Answers (2)

dauren slambekov
dauren slambekov

Reputation: 390

pls attach this

labelargs = label.argsort()[::-1][:3]
print(labelargs) ## this will print [1 5 2]
labelargs = [x for x in labelargs if label[x]>0.2]
print(labelargs) ## this will print [1 5]

regards

Upvotes: 2

Divakar
Divakar

Reputation: 221504

Get those specific indices and then index -

# Get all valid indices
In [12]: idx = np.flatnonzero(label>0.2)

# Index into input array and get descending order
In [20]: idx[np.argsort(label[idx])[::-1]]
Out[20]: array([1, 5])

Variations of np.flatnonzero(), would be np.nonzero()[0] and np.where()[0].

Upvotes: 2

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