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Python | Filter out integers from float numpy array
• Last Updated : 15 Mar, 2019

Given a numpy array, the task is to filter out integers from an array containing float and integers. Let’s see few methods to solve a given task.

Method #1 : Using astype(int)

 `# Python code to demonstrate ``# filtering integers from numpy array``# containing integers and float`` ` `import` `numpy as np`` ` `# initialising array``ini_array ``=` `np.array([``1.0``, ``1.2``, ``2.2``, ``2.0``, ``3.0``, ``2.0``])`` ` `# printing initial array``print` `(``"initial array : "``, ``str``(ini_array))`` ` `# filtering integers``result ``=` `ini_array[ini_array !``=` `ini_array.astype(``int``)]`` ` `# printig resultant``print` `(``"final array"``, result)`
Output:
```initial array :  [ 1.   1.2  2.2  2.   3.   2. ]
final array [ 1.2  2.2]
```

Method #2: Using np.equal() and np.mod()

 `# Python code to demonstrate ``# filtering integers from numpy array``# containing integers and float`` ` `import` `numpy as np`` ` `# initialising array``ini_array ``=` `np.array([``1.0``, ``1.2``, ``2.2``, ``2.0``, ``3.0``, ``2.0``])`` ` `# printing initial array``print` `(``"initial array : "``, ``str``(ini_array))`` ` `# filtering integers``result ``=` `ini_array[~np.equal(np.mod(ini_array, ``1``), ``0``)]`` ` `# printing resultant``print` `(``"final array : "``, ``str``(result))`
Output:

```initial array :  [ 1.   1.2  2.2  2.   3.   2. ]
final array :  [ 1.2  2.2]
```

Method #3: Using np.isclose()

 `# Python code to demonstrate ``# filtering integers from numpy array``# containing integers and float`` ` `import` `numpy as np`` ` `# initialising array``ini_array ``=` `np.array([``1.0``, ``1.2``, ``2.2``, ``2.0``, ``3.0``, ``2.0``])`` ` `# printing initial array``print` `(``"initial array : "``, ``str``(ini_array))`` ` `# filtering integers``mask ``=` `np.isclose(ini_array, ini_array.astype(``int``))``result ``=` `ini_array[~mask]`` ` `# printing resultant``print` `(``"final array : "``, ``str``(result))`
Output:
```initial array :  [ 1.   1.2  2.2  2.   3.   2. ]
final array :  [ 1.2  2.2]
```

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