CODEWITHSUNDEEP
pythonarraysmatplotlibrange
Potion
Potion

Reputation: 946

Python: Removing a range of numbers from array list

Im having issues removing elements from a range a through b from an array list. The solutions ive searched online seem to only work for individual elements, adjacent elements and or elements that are whole numbers. Im dealing with float numbers. 

self.genx = np.arange(0, 5, 0.1)

temp_select = self.genx[1:3] #I want to remove numbers from 1 - 3 from genx
print(temp_select)
self.genx = list(set(self.genx)-set(temp_select))
print(self.genx)
plt.plot(self.genx,self.geny)

However I get the following in the console and this is because im subtracting floats rather than whole numbers so it literally subtracts rather than removing which is what it would do if dealing with whole numbers:

genx: [ 0.0 , 0.1 , 0.2 , 0.3 , 0.4 , 0.5 , 0.6 , 0.7 , 0.8 , 0.9 , 1.0, 1.1 , 1.2 , 1.3 , 1.4 , 1.5 , 1.6 , 1.7 , 1.8 , 1.9 , 2.0, , 2.1 , 2.2 , 2.3 , 2.4 , 2.5 , 2.6 , 2.7 , 2.8 , 2.9 , 3.0 , 3.1 , 3.2 , 3.3 , 3.4 , 3.5 , 3.6 , 3.7 , 3.8 , 3.9 , 4.0 , 4.1 , 4.2 , 4.3 , 4.4 , 4.5 , 4.6 , 4.7 , 4.8 , 4.9]

temp_select: [ 0.1 0.2]

genx(after subtracted): [0.0, 0.5, 2.0, 3.0, 4.0, 1.5, 1.0, 1.1000000000000001, 0.70000000000000007, 0.90000000000000002, 2.7000000000000002, 0.30000000000000004, 2.9000000000000004, 1.9000000000000001, 3.3000000000000003, 0.40000000000000002, 4.7000000000000002, 3.4000000000000004, 2.2000000000000002, 2.8000000000000003, 1.4000000000000001, 0.60000000000000009, 3.6000000000000001, 1.3, 1.2000000000000002, 4.2999999999999998, 4.2000000000000002, 4.9000000000000004, 3.9000000000000004, 3.8000000000000003, 2.3000000000000003, 4.8000000000000007, 3.2000000000000002, 1.7000000000000002, 2.5, 3.5, 1.8, 4.1000000000000005, 2.4000000000000004, 4.4000000000000004, 1.6000000000000001, 0.80000000000000004, 2.6000000000000001, 4.6000000000000005, 2.1000000000000001, 3.1000000000000001, 3.7000000000000002, 4.5]

Upvotes: 0

Views: 1735

Answers (2)

Chu
Chu

Reputation: 321

self.genx = [ item for item in self.genx if not range_min <= item <= range_max ]

Is this what you want??

Upvotes: 0

Srdjan Grubor
Srdjan Grubor

Reputation: 2675

I didn't test this but you should be able to do something like the following:

self.genx = [ item for item in self.genx if not range_min < item < range_max ]

Upvotes: 1

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