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basic numpy programs

Author: cmjagtap

numpy/basicsNp.py

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+#Author CM
+# python3 basicNp.py
+# np functions slicing dicing
+import numpy as np
+a=np.array([1,2,3,4])
+b=np.array([5,6,7,8])
+print (a,b)
+for i in a:
+    if i%2==0:
+        print (i,end=" ")
+print (a+b)
+print (a.size)  #finds lenght of array
+a=np.array([[1,2],[4,3]])
+print (a.shape) #dimentions of array
+print (a)
+print (np.ones((3,6)))
+x=np.array([1,2,3,4])
+print (x[-1]) #prints last element
+x=np.array([[1,2,3],[4,5,6],[6,7,8]])
+print (x)
+print (x[0:3,2]) #prints 0 to 3 rows but increase rows value by two
+print (x[:,1:3]) #prints colums from 1 to three
+for row in x:
+        print (row)
+for cel in x.flat:
+        print (cel)
+x=np.arange(1,7).reshape(2,3)
+y=np.arange(30).reshape(2,15)
+print(x)
+print (y)
+rs=np.hsplit(y,3) #splits horizontally
+print(rs[0])
+rs2=np.vsplit(y,2)
+print( rs2)
+print("")
+print((x))
+for x in np.nditer(x,order='F'): #order option are : 'F' 'C' 'A' 'K'
+        print(x)