calling different functions depending on variable values

-1

I have 500 floats in total and i want to run if statement on each of them and call a function accordingly

My code is something like this:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def function1():

    print("x1 is positive")



def function2():

    print("x2 is positive")



def function3():

    print("x3 is positive")



def function4():

    print("x4 is positive")



for x in range(10):    

    if x1 > 0:

        function1()



    if x2 > 0:

        function2()



    if x3 > 0:

        function3()



    if x4 > 0:

        function4()

I want a better more efficient way of doing this otherwise i have to write if statement for all the variables

asked Jan 2 at 11:23

Gaurav

3

Are each of those 500 float values stored in separate variables—i.e. x1, x2, ... x500? If they are, that's your first problem. If not, then please edit your question and show us what you're really dealing with.

– martineau
Jan 2 at 12:13

yes they are all separate variables

– Gaurav
Jan 2 at 15:35

1

In that case you need to put them all in some kind of container—a list seems suitable—and then you can easily handle them all with a single function. It looks like there's some kind if group-of-four, in which case you could use a list-of-lists-of-four-elements.

– martineau
Jan 2 at 16:58

add a comment |

-1

I have 500 floats in total and i want to run if statement on each of them and call a function accordingly

My code is something like this:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def function1():

    print("x1 is positive")



def function2():

    print("x2 is positive")



def function3():

    print("x3 is positive")



def function4():

    print("x4 is positive")



for x in range(10):    

    if x1 > 0:

        function1()



    if x2 > 0:

        function2()



    if x3 > 0:

        function3()



    if x4 > 0:

        function4()

I want a better more efficient way of doing this otherwise i have to write if statement for all the variables

asked Jan 2 at 11:23

Gaurav

3

Are each of those 500 float values stored in separate variables—i.e. x1, x2, ... x500? If they are, that's your first problem. If not, then please edit your question and show us what you're really dealing with.

– martineau
Jan 2 at 12:13

yes they are all separate variables

– Gaurav
Jan 2 at 15:35

1

In that case you need to put them all in some kind of container—a list seems suitable—and then you can easily handle them all with a single function. It looks like there's some kind if group-of-four, in which case you could use a list-of-lists-of-four-elements.

– martineau
Jan 2 at 16:58

add a comment |

-1

I have 500 floats in total and i want to run if statement on each of them and call a function accordingly

My code is something like this:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def function1():

    print("x1 is positive")



def function2():

    print("x2 is positive")



def function3():

    print("x3 is positive")



def function4():

    print("x4 is positive")



for x in range(10):    

    if x1 > 0:

        function1()



    if x2 > 0:

        function2()



    if x3 > 0:

        function3()



    if x4 > 0:

        function4()

I want a better more efficient way of doing this otherwise i have to write if statement for all the variables

asked Jan 2 at 11:23

Gaurav

I have 500 floats in total and i want to run if statement on each of them and call a function accordingly

My code is something like this:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def function1():

    print("x1 is positive")



def function2():

    print("x2 is positive")



def function3():

    print("x3 is positive")



def function4():

    print("x4 is positive")



for x in range(10):    

    if x1 > 0:

        function1()



    if x2 > 0:

        function2()



    if x3 > 0:

        function3()



    if x4 > 0:

        function4()

I want a better more efficient way of doing this otherwise i have to write if statement for all the variables

python python-3.x

asked Jan 2 at 11:23

Gaurav

asked Jan 2 at 11:23

Gaurav

asked Jan 2 at 11:23

Gaurav

asked Jan 2 at 11:23

Gaurav

asked Jan 2 at 11:23

Gaurav

3

Are each of those 500 float values stored in separate variables—i.e. x1, x2, ... x500? If they are, that's your first problem. If not, then please edit your question and show us what you're really dealing with.

– martineau
Jan 2 at 12:13

yes they are all separate variables

– Gaurav
Jan 2 at 15:35

1

In that case you need to put them all in some kind of container—a list seems suitable—and then you can easily handle them all with a single function. It looks like there's some kind if group-of-four, in which case you could use a list-of-lists-of-four-elements.

– martineau
Jan 2 at 16:58

add a comment |

3

Are each of those 500 float values stored in separate variables—i.e. x1, x2, ... x500? If they are, that's your first problem. If not, then please edit your question and show us what you're really dealing with.

– martineau
Jan 2 at 12:13

yes they are all separate variables

– Gaurav
Jan 2 at 15:35

1

In that case you need to put them all in some kind of container—a list seems suitable—and then you can easily handle them all with a single function. It looks like there's some kind if group-of-four, in which case you could use a list-of-lists-of-four-elements.

– martineau
Jan 2 at 16:58

Are each of those 500 float values stored in separate variables—i.e. x1, x2, ... x500? If they are, that's your first problem. If not, then please edit your question and show us what you're really dealing with.

– martineau
Jan 2 at 12:13

yes they are all separate variables

– Gaurav
Jan 2 at 15:35

In that case you need to put them all in some kind of container—a list seems suitable—and then you can easily handle them all with a single function. It looks like there's some kind if group-of-four, in which case you could use a list-of-lists-of-four-elements.

– martineau
Jan 2 at 16:58

add a comment |

2 Answers
2

active

oldest

votes

You should take tutorial(s)to learn about python coding - this question is very basic as python goes.

Create a function that checks the variable and prints the correct thing:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def check_and_print(value, variablename):

    """Checks if the content of value is smaller, bigger or euqal to zero. 

    Prints text to console using variablename."""

    if value > 0:

        print(f"{variablename} is positive")

    elif value < 0:

        print(f"{variablename} is negative")

    else:

        print(f"{variablename} is zero")



check_and_print(x1, "x1")

check_and_print(x2, "x2")

check_and_print(x3, "x3")

check_and_print(x4, "x4")

check_and_print(0, "carrot") # the given name is just printed

Output:

x1 is positive

x2 is positive

x3 is negative

x4 is negative

carrot is zero

You can shorten your code further by using a list of tuples and a loop over it:

for value,name in [(x1, "x1"),(x2, "x2"),(x3, "x3"),(x4, "x4"),(0, "x0")]:

    check_and_print(value,name)  # outputs the same as above

Doku:

functions

tuples

lists

loops

string formatting

edited Jan 2 at 11:47

answered Jan 2 at 11:37

Patrick Artner

25.6k62544

add a comment |

It would be much easier to do what you want if the data wasn't stored in a bunch of separately-named variables like x1, x2, ... x500, as you indicated in a comment.

If you had the values in a list like this:

values = [.2, .33, -.422, -1, .1, -.76, -.36, 1, -.6, .73, .22, .5,  # ... ,

         ]

Then they could all be processed by a single function called repeatedly in a for loop as shown below:

def check_value(index, value):

    if value > 0:

        print('x{} is positive'.format(index+1))



for i, value in enumerate(values):

    check_value(i, value)

You haven't indicated the source of the data, but I suspect it's being generated by an automated process of some sort. If you have control over how is done, then it shouldn't be too hard to change things so the values are in suggest form of a list.

edited Jan 2 at 21:57

answered Jan 2 at 17:45

martineau

69.4k1092186

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

You should take tutorial(s)to learn about python coding - this question is very basic as python goes.

Create a function that checks the variable and prints the correct thing:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def check_and_print(value, variablename):

    """Checks if the content of value is smaller, bigger or euqal to zero. 

    Prints text to console using variablename."""

    if value > 0:

        print(f"{variablename} is positive")

    elif value < 0:

        print(f"{variablename} is negative")

    else:

        print(f"{variablename} is zero")



check_and_print(x1, "x1")

check_and_print(x2, "x2")

check_and_print(x3, "x3")

check_and_print(x4, "x4")

check_and_print(0, "carrot") # the given name is just printed

Output:

x1 is positive

x2 is positive

x3 is negative

x4 is negative

carrot is zero

You can shorten your code further by using a list of tuples and a loop over it:

for value,name in [(x1, "x1"),(x2, "x2"),(x3, "x3"),(x4, "x4"),(0, "x0")]:

    check_and_print(value,name)  # outputs the same as above

Doku:

functions

tuples

lists

loops

string formatting

edited Jan 2 at 11:47

answered Jan 2 at 11:37

Patrick Artner

25.6k62544

add a comment |

You should take tutorial(s)to learn about python coding - this question is very basic as python goes.

Create a function that checks the variable and prints the correct thing:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def check_and_print(value, variablename):

    """Checks if the content of value is smaller, bigger or euqal to zero. 

    Prints text to console using variablename."""

    if value > 0:

        print(f"{variablename} is positive")

    elif value < 0:

        print(f"{variablename} is negative")

    else:

        print(f"{variablename} is zero")



check_and_print(x1, "x1")

check_and_print(x2, "x2")

check_and_print(x3, "x3")

check_and_print(x4, "x4")

check_and_print(0, "carrot") # the given name is just printed

Output:

x1 is positive

x2 is positive

x3 is negative

x4 is negative

carrot is zero

You can shorten your code further by using a list of tuples and a loop over it:

for value,name in [(x1, "x1"),(x2, "x2"),(x3, "x3"),(x4, "x4"),(0, "x0")]:

    check_and_print(value,name)  # outputs the same as above

Doku:

functions

tuples

lists

loops

string formatting

edited Jan 2 at 11:47

answered Jan 2 at 11:37

Patrick Artner

25.6k62544

add a comment |

You should take tutorial(s)to learn about python coding - this question is very basic as python goes.

Create a function that checks the variable and prints the correct thing:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def check_and_print(value, variablename):

    """Checks if the content of value is smaller, bigger or euqal to zero. 

    Prints text to console using variablename."""

    if value > 0:

        print(f"{variablename} is positive")

    elif value < 0:

        print(f"{variablename} is negative")

    else:

        print(f"{variablename} is zero")



check_and_print(x1, "x1")

check_and_print(x2, "x2")

check_and_print(x3, "x3")

check_and_print(x4, "x4")

check_and_print(0, "carrot") # the given name is just printed

Output:

x1 is positive

x2 is positive

x3 is negative

x4 is negative

carrot is zero

You can shorten your code further by using a list of tuples and a loop over it:

for value,name in [(x1, "x1"),(x2, "x2"),(x3, "x3"),(x4, "x4"),(0, "x0")]:

    check_and_print(value,name)  # outputs the same as above

Doku:

functions

tuples

lists

loops

string formatting

edited Jan 2 at 11:47

answered Jan 2 at 11:37

Patrick Artner

25.6k62544

You should take tutorial(s)to learn about python coding - this question is very basic as python goes.

Create a function that checks the variable and prints the correct thing:

x1 = .2

x2 = .33

x3 = -.422

x4 = -1



def check_and_print(value, variablename):

    """Checks if the content of value is smaller, bigger or euqal to zero. 

    Prints text to console using variablename."""

    if value > 0:

        print(f"{variablename} is positive")

    elif value < 0:

        print(f"{variablename} is negative")

    else:

        print(f"{variablename} is zero")



check_and_print(x1, "x1")

check_and_print(x2, "x2")

check_and_print(x3, "x3")

check_and_print(x4, "x4")

check_and_print(0, "carrot") # the given name is just printed

Output:

x1 is positive

x2 is positive

x3 is negative

x4 is negative

carrot is zero

You can shorten your code further by using a list of tuples and a loop over it:

for value,name in [(x1, "x1"),(x2, "x2"),(x3, "x3"),(x4, "x4"),(0, "x0")]:

    check_and_print(value,name)  # outputs the same as above

Doku:

functions

tuples

lists

loops

string formatting

edited Jan 2 at 11:47

answered Jan 2 at 11:37

Patrick Artner

25.6k62544

edited Jan 2 at 11:47

answered Jan 2 at 11:37

Patrick Artner

25.6k62544

answered Jan 2 at 11:37

Patrick Artner

25.6k62544

answered Jan 2 at 11:37

Patrick Artner

25.6k62544

add a comment |

It would be much easier to do what you want if the data wasn't stored in a bunch of separately-named variables like x1, x2, ... x500, as you indicated in a comment.

If you had the values in a list like this:

values = [.2, .33, -.422, -1, .1, -.76, -.36, 1, -.6, .73, .22, .5,  # ... ,

         ]

Then they could all be processed by a single function called repeatedly in a for loop as shown below:

def check_value(index, value):

    if value > 0:

        print('x{} is positive'.format(index+1))



for i, value in enumerate(values):

    check_value(i, value)

edited Jan 2 at 21:57

answered Jan 2 at 17:45

martineau

69.4k1092186

add a comment |

It would be much easier to do what you want if the data wasn't stored in a bunch of separately-named variables like x1, x2, ... x500, as you indicated in a comment.

If you had the values in a list like this:

values = [.2, .33, -.422, -1, .1, -.76, -.36, 1, -.6, .73, .22, .5,  # ... ,

         ]

Then they could all be processed by a single function called repeatedly in a for loop as shown below:

def check_value(index, value):

    if value > 0:

        print('x{} is positive'.format(index+1))



for i, value in enumerate(values):

    check_value(i, value)

edited Jan 2 at 21:57

answered Jan 2 at 17:45

martineau

69.4k1092186

add a comment |

It would be much easier to do what you want if the data wasn't stored in a bunch of separately-named variables like x1, x2, ... x500, as you indicated in a comment.

If you had the values in a list like this:

values = [.2, .33, -.422, -1, .1, -.76, -.36, 1, -.6, .73, .22, .5,  # ... ,

         ]

Then they could all be processed by a single function called repeatedly in a for loop as shown below:

def check_value(index, value):

    if value > 0:

        print('x{} is positive'.format(index+1))



for i, value in enumerate(values):

    check_value(i, value)

edited Jan 2 at 21:57

answered Jan 2 at 17:45

martineau

69.4k1092186

It would be much easier to do what you want if the data wasn't stored in a bunch of separately-named variables like x1, x2, ... x500, as you indicated in a comment.

If you had the values in a list like this:

values = [.2, .33, -.422, -1, .1, -.76, -.36, 1, -.6, .73, .22, .5,  # ... ,

         ]

Then they could all be processed by a single function called repeatedly in a for loop as shown below:

def check_value(index, value):

    if value > 0:

        print('x{} is positive'.format(index+1))



for i, value in enumerate(values):

    check_value(i, value)

edited Jan 2 at 21:57

answered Jan 2 at 17:45

martineau

69.4k1092186

edited Jan 2 at 21:57

answered Jan 2 at 17:45

martineau

69.4k1092186

answered Jan 2 at 17:45

martineau

69.4k1092186

answered Jan 2 at 17:45

martineau

69.4k1092186

add a comment |

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