Basics of Numpy - Arithmetical operation and arrays handling code samples
Basics of Numpy - Arithmetical operation and arrays handling code samples - 2
Basics of Numpy - Arithmetical operation and arrays handling code samples - 3
Lets explore more on array operation and cover string , artihmetical operations that we perform on ndarray object.
String functions
ADD - element-wise string concatenation for two arrays of str or Unicode
print np.char.add(['hello'],[' xyz'])
print np.char.add(['hello', 'hi'],[' abc', ' xyz'])
MULTIPLY - Returns the string with multiple concatenation, element-wise
print np.char.multiply('Hello ',3)
CENTER - copy of the given string with elements centered in a string of specified length
# np.char.center(arr, width,fillchar)
print np.char.center('hello', 20,fillchar = '*')
CAPITALISE - only the first character capitalized
print np.char.capitalize('hello world')
TITLE - element-wise title cased version of the string or unicode
print np.char.title('hello how are you?')
LOWER - elements converted to lowercase
print np.char.lower(['HELLO','WORLD'])
print np.char.lower('HELLO')
UPPER - elements converted to uppercase
print np.char.upper('hello')
print np.char.upper(['hello','world'])
SPLIT - list of the words in the string, using separatordelimiter
print np.char.split ('hello how do you do ?')
print np.char.split ('Viplav,Anand,check', sep = ',')
SPLITLINES - list of the lines in the element, breaking at the line boundaries
print np.char.splitlines('hello\nhow are you?')
print np.char.splitlines('hello\rhow are you?')
STRIP - the leading and trailing characters removed
print np.char.strip('viplav van','v')
print np.char.strip(['viplav','anand','vov'],'v')
JOIN - the concatenation of the strings in the sequence
print np.char.join(':','hms')
print np.char.join([':','-'],['hms','dmy'])
REPLACE - all occurrences of substring replaced by the new string
print np.char.replace ('He is a good boy', 'is', 'was')
DECODE , ENCODE - encoded text
a = np.char.encode('hello', 'cp500')
print a
print np.char.decode(a,'cp500')
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