Category Archives: Python

Mission Machine Learning

Posted on November 12, 2019 | Leave a comment

Pagerank Algorithm Eigenvalue

Square Matrices

Geometric Interpretation

Eigenvalue:

https://www.khanacademy.org/math/linear-algebra/alternate-bases/eigen-everything/v/linear-algebra-introduction-to-eigenvalues-and-eigenvectors

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Posted in BigData, Data Science, Machine Learning, Natural Language Processing(NLP), Python, Research

For Loops in Python

Posted on November 12, 2019 | Leave a comment

monday_temperatures=[9.1,8.8,7.6]

# print(round(monday_temperatures[0]))
# print(round(monday_temperatures[1]))
# print(round(monday_temperatures[2]))

for temperatures in monday_temperatures:
    print(round(temperatures))
    print("done")


for letter in "Hello":
    print(letter.title())

monday_temperatures=[9.1,8.8,7.6]

# print(round(monday_temperatures[0]))

# print(round(monday_temperatures[1]))

# print(round(monday_temperatures[2]))

for temperatures in monday_temperatures:

print(round(temperatures))

print("done")

for letter in "Hello":

print(letter.title())

colors = [11, 34, 98, 43, 45, 54, 54]

for items in colors:
    if items>50:
        print(items)

colors = [11, 34, 98, 43, 45, 54, 54]

for items in colors:

if items>50:

print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]


for items in colors:
    
    if isinstance(items,int):
        if(items>50):
            print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]

for items in colors:

if isinstance(items,int):

if(items>50):

print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]


for items in colors:
    
    if isinstance(items,int):
        print(items)

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]

for items in colors:

if isinstance(items,int):

print(items)

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Posted in Python

Python String formatting

Posted on November 12, 2019 | Leave a comment

Playing With String in Function of Python

def takData(input_data):
   return ("Hi my name is: {}".format(input_data))



input_data=input("Enter your name: ")
print(takData(input_data))

def takData(input_data):

return ("Hi my name is: {}".format(input_data))

input_data=input("Enter your name: ")

print(takData(input_data))

With First letter capital:

def takData(input_data):
   return ("Hi my name is: {}".format(input_data).title())


input_data=input("Enter your name: ")
print(takData(input_data))

def takData(input_data):

return ("Hi my name is: {}".format(input_data).title())

input_data=input("Enter your name: ")

print(takData(input_data))

Converting string to int:

def takData(input_data):
   return ("Hi my name is: {}".format(input_data).title())



input_data=int(input("Enter your name: "))
print(takData(input_data))

def takData(input_data):

return ("Hi my name is: {}".format(input_data).title())

input_data=int(input("Enter your name: "))

print(takData(input_data))

For Python 1 and 2

def takData(input_data):
   return ("Hi my name is: %s" %input_data.title())



input_data=(input("Enter your name: "))
print(takData(input_data))

def takData(input_data):

return ("Hi my name is: %s" %input_data.title())

input_data=(input("Enter your name: "))

print(takData(input_data))

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Posted in Python

Python String Input Need To Clear From Internet

Posted on November 7, 2019 | Leave a comment

user_input=input("Enter your name: ")
#message="Hello %s" % user_input
message=f"Hello {user_input}"
print(message)

user_input=input("Enter your name: ")

#message="Hello %s" % user_input

message=f"Hello {user_input}"

print(message)

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Posted in Python

Python Function Calling

Posted on November 7, 2019 | Leave a comment

def mean(value):
    if type(value)==dict:
        the_mean=sum(value.values())/len(value.values())
    else:
        the_mean = sum(value) / len(value)
    return the_mean
monday_temperatures=(8.8,9.1,9.9)
student_grades={"Marry":9.1,"sim":8.8,"John":7.5}
print(mean(monday_temperatures))

def mean(value):

if type(value)==dict:

the_mean=sum(value.values())/len(value.values())

else:

the_mean = sum(value) / len(value)

return the_mean

monday_temperatures=(8.8,9.1,9.9)

student_grades={"Marry":9.1,"sim":8.8,"John":7.5}

print(mean(monday_temperatures))

def mean(value):
    if isinstance(value,dict):
        the_mean=sum(value.values())/len(value.values())
    else:
        the_mean = sum(value) / len(value)
    return the_mean
monday_temperatures=(8.8,9.1,9.9)
student_grades={"Marry":9.1,"sim":8.8,"John":7.5}
print(mean(monday_temperatures))

def mean(value):

if isinstance(value,dict):

the_mean=sum(value.values())/len(value.values())

else:

the_mean = sum(value) / len(value)

return the_mean

monday_temperatures=(8.8,9.1,9.9)

student_grades={"Marry":9.1,"sim":8.8,"John":7.5}

print(mean(monday_temperatures))

def foo(x, array):
    if x in array:
        return True
    else:
        return False


print(foo("z", ["a", "b", "z"]))
print(foo(1, [2, 3]))
print(foo(1, ['1', 2, 3]))

def foo(x, array):

if x in array:

return True

else:

return False

print(foo("z", ["a", "b", "z"]))

print(foo(1, [2, 3]))

print(foo(1, ['1', 2, 3]))

def inTake(value):
    length = len(value)
    if length < 8:
        return False
    else:
        return True


print(inTake("mylongspass"))

def inTake(value):

length = len(value)

if length < 8:

return False

else:

return True

print(inTake("mylongspass"))

def inTake(value):
    if value > 25 :
        return "hot"
    elif value>=15 and value<=25:
        return "warm"
    else:
        return "Cold"


print(inTake(20))

def inTake(value):

if value > 25 :

return "hot"

elif value>=15 and value<=25:

return "warm"

else:

return "Cold"

print(inTake(20))

def inTake(value):
    if value > 25 :
        return "hot"
    elif value>=15 and value<=25:
        return "warm"
    else:
        return "Cold"

inputdigit=float(input("enter temperature="))

print(inTake(inputdigit))

print(type(inputdigit),inputdigit)

def inTake(value):

if value > 25 :

return "hot"

elif value>=15 and value<=25:

return "warm"

else:

return "Cold"

inputdigit=float(input("enter temperature="))

print(inTake(inputdigit))

print(type(inputdigit),inputdigit)

Check if a value is of a certain type with:

isinstance(“abc”, str)
isinstance([1, 2, 3], list)

type(“abc”) == str
type([1, 2, 3]) == lst

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Posted in Python

Python Function

Posted on November 3, 2019 | Leave a comment

def area(a):
    the_area=a*a
    return the_area

print(area(7))

def area(a):

the_area=a*a

return the_area

print(area(7))

def foo(value):
    fluid=value*29.57353
    return fluid


print(foo(5))

def foo(value):

fluid=value*29.57353

return fluid

print(foo(5))

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Posted in Python

Positive/Negative Indexes, Slicing of Tuples

Posted on November 3, 2019 | Leave a comment

Summary for python learning: Positive/Negative Indexes, Slicing:

Lists, strings, and tuples have a positive index system:

["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
   0      1      2      3      4      5      6
And a negative index system:

["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
  -7     -6     -5     -4     -3     -2     -1
In a list, the 2nd, 3rd, and 4th items can be accessed with:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[1:4]
Output: ['Tue', 'Wed', 'Thu']
First three items of a list:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[:3]
Output:['Mon', 'Tue', 'Wed'] 
Last three items of a list:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[-3:]
Output: ['Fri', 'Sat', 'Sun']
Everything but the last:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[:-1] 
Output: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'] 
Everything but the last two:

days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
days[:-2] 
Output: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri'] 
A single in a dictionary can be accessed using its key:

phone_numbers = {"John Smith":"+37682929928","Marry Simpons":"+423998200919"}
phone_numbers["Marry Simpsons"]
Output: '+423998200919'

Summary for python learning: Positive/Negative Indexes, Slicing:

Lists, strings, and tuples have a positive index system:

["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]

0 1 2 3 4 5 6

And a negative index system:

["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]

-7 -6 -5 -4 -3 -2 -1

In a list, the 2nd, 3rd, and 4th items can be accessed with: