combine matrix and list in python
0
I have a list and matrix like this:
list = [(a1, b1), (a2, b2), (a3, b3)]
matrix = [1 1 1
0 0 0
1 0 1]
the combination output must be:
result = [(a1, b1) 1 1 1
(a2, b2) 0 0 0
(a3, b3) 1 0 1]
How can I do this elegantly (with no loop)?
python list matrix
asked Nov 20 '18 at 7:43
AprilisAprilis
125
|
show 3 more comments
0
I have a list and matrix like this:
list = [(a1, b1), (a2, b2), (a3, b3)]
matrix = [1 1 1
0 0 0
1 0 1]
the combination output must be:
result = [(a1, b1) 1 1 1
(a2, b2) 0 0 0
(a3, b3) 1 0 1]
How can I do this elegantly (with no loop)?
python list matrix
asked Nov 20 '18 at 7:43
AprilisAprilis
125
@Novak ‘s answer would probably work but there is a reason that loops exist. Unless you were playing code golf I don’t see a reason you shouldn’t use loops.
– Goldman Lee
Nov 20 '18 at 7:56
1
Python doesn't have a built-in matrix type. Yourmatrix = [...]line is currently not valid Python. Can you update the examples with actual Python code?
– Hannes Ovrén
Nov 20 '18 at 7:56
@GoldmanLee Avoiding loops is not necessary, but i want to make my code as fast as I can. Because it is competition in my class on the run time
– Aprilis
Nov 20 '18 at 8:07
@HannesOvrén I know, It isn't the code, just an simple ex
– Aprilis
Nov 20 '18 at 8:08
So you want SO to win a class competition for you? Then you are at the wrong place.
– b-fg
Nov 20 '18 at 8:23
|
show 3 more comments
0
0
0
I have a list and matrix like this:
list = [(a1, b1), (a2, b2), (a3, b3)]
matrix = [1 1 1
0 0 0
1 0 1]
the combination output must be:
result = [(a1, b1) 1 1 1
(a2, b2) 0 0 0
(a3, b3) 1 0 1]
How can I do this elegantly (with no loop)?
python list matrix
asked Nov 20 '18 at 7:43
AprilisAprilis
125
I have a list and matrix like this:
list = [(a1, b1), (a2, b2), (a3, b3)]
matrix = [1 1 1
0 0 0
1 0 1]
the combination output must be:
result = [(a1, b1) 1 1 1
(a2, b2) 0 0 0
(a3, b3) 1 0 1]
How can I do this elegantly (with no loop)?
python list matrix
python list matrix
asked Nov 20 '18 at 7:43
AprilisAprilis
125
asked Nov 20 '18 at 7:43
AprilisAprilis
125
asked Nov 20 '18 at 7:43
AprilisAprilis
125
asked Nov 20 '18 at 7:43
AprilisAprilis
125
asked Nov 20 '18 at 7:43
AprilisAprilis
125
125
@Novak ‘s answer would probably work but there is a reason that loops exist. Unless you were playing code golf I don’t see a reason you shouldn’t use loops.
– Goldman Lee
Nov 20 '18 at 7:56
1
Python doesn't have a built-in matrix type. Yourmatrix = [...]line is currently not valid Python. Can you update the examples with actual Python code?
– Hannes Ovrén
Nov 20 '18 at 7:56
@GoldmanLee Avoiding loops is not necessary, but i want to make my code as fast as I can. Because it is competition in my class on the run time
– Aprilis
Nov 20 '18 at 8:07
@HannesOvrén I know, It isn't the code, just an simple ex
– Aprilis
Nov 20 '18 at 8:08
So you want SO to win a class competition for you? Then you are at the wrong place.
– b-fg
Nov 20 '18 at 8:23
|
show 3 more comments
@Novak ‘s answer would probably work but there is a reason that loops exist. Unless you were playing code golf I don’t see a reason you shouldn’t use loops.
– Goldman Lee
Nov 20 '18 at 7:56
1
Python doesn't have a built-in matrix type. Yourmatrix = [...]line is currently not valid Python. Can you update the examples with actual Python code?
– Hannes Ovrén
Nov 20 '18 at 7:56
@GoldmanLee Avoiding loops is not necessary, but i want to make my code as fast as I can. Because it is competition in my class on the run time
– Aprilis
Nov 20 '18 at 8:07
@HannesOvrén I know, It isn't the code, just an simple ex
– Aprilis
Nov 20 '18 at 8:08
So you want SO to win a class competition for you? Then you are at the wrong place.
– b-fg
Nov 20 '18 at 8:23
@Novak ‘s answer would probably work but there is a reason that loops exist. Unless you were playing code golf I don’t see a reason you shouldn’t use loops.
– Goldman Lee
Nov 20 '18 at 7:56
@Novak ‘s answer would probably work but there is a reason that loops exist. Unless you were playing code golf I don’t see a reason you shouldn’t use loops.
– Goldman Lee
Nov 20 '18 at 7:56
1
1
Python doesn't have a built-in matrix type. Your
matrix = [...] line is currently not valid Python. Can you update the examples with actual Python code?– Hannes Ovrén
Nov 20 '18 at 7:56
Python doesn't have a built-in matrix type. Your
matrix = [...] line is currently not valid Python. Can you update the examples with actual Python code?– Hannes Ovrén
Nov 20 '18 at 7:56
@GoldmanLee Avoiding loops is not necessary, but i want to make my code as fast as I can. Because it is competition in my class on the run time
– Aprilis
Nov 20 '18 at 8:07
@GoldmanLee Avoiding loops is not necessary, but i want to make my code as fast as I can. Because it is competition in my class on the run time
– Aprilis
Nov 20 '18 at 8:07
@HannesOvrén I know, It isn't the code, just an simple ex
– Aprilis
Nov 20 '18 at 8:08
@HannesOvrén I know, It isn't the code, just an simple ex
– Aprilis
Nov 20 '18 at 8:08
So you want SO to win a class competition for you? Then you are at the wrong place.
– b-fg
Nov 20 '18 at 8:23
So you want SO to win a class competition for you? Then you are at the wrong place.
– b-fg
Nov 20 '18 at 8:23
|
show 3 more comments
1 Answer
1
active
oldest
votes
0
You can do it with pandas DataFrame:
import pandas as pd
matrix = pd.DataFrame(matrix)
matrix.insert(loc=0, column='new_col', value=new_col)
answered Nov 20 '18 at 7:53
NovakNovak
1,2951612
add a comment |
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1 Answer
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1 Answer
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0
You can do it with pandas DataFrame:
import pandas as pd
matrix = pd.DataFrame(matrix)
matrix.insert(loc=0, column='new_col', value=new_col)
answered Nov 20 '18 at 7:53
NovakNovak
1,2951612
add a comment |
0
You can do it with pandas DataFrame:
import pandas as pd
matrix = pd.DataFrame(matrix)
matrix.insert(loc=0, column='new_col', value=new_col)
answered Nov 20 '18 at 7:53
NovakNovak
1,2951612
add a comment |
0
0
0
You can do it with pandas DataFrame:
import pandas as pd
matrix = pd.DataFrame(matrix)
matrix.insert(loc=0, column='new_col', value=new_col)
answered Nov 20 '18 at 7:53
NovakNovak
1,2951612
You can do it with pandas DataFrame:
import pandas as pd
matrix = pd.DataFrame(matrix)
matrix.insert(loc=0, column='new_col', value=new_col)
answered Nov 20 '18 at 7:53
NovakNovak
1,2951612
answered Nov 20 '18 at 7:53
NovakNovak
1,2951612
answered Nov 20 '18 at 7:53
NovakNovak
1,2951612
answered Nov 20 '18 at 7:53
NovakNovak
1,2951612
1,2951612
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add a comment |
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@Novak ‘s answer would probably work but there is a reason that loops exist. Unless you were playing code golf I don’t see a reason you shouldn’t use loops.
– Goldman Lee
Nov 20 '18 at 7:56
1
Python doesn't have a built-in matrix type. Your
matrix = [...]line is currently not valid Python. Can you update the examples with actual Python code?– Hannes Ovrén
Nov 20 '18 at 7:56
@GoldmanLee Avoiding loops is not necessary, but i want to make my code as fast as I can. Because it is competition in my class on the run time
– Aprilis
Nov 20 '18 at 8:07
@HannesOvrén I know, It isn't the code, just an simple ex
– Aprilis
Nov 20 '18 at 8:08
So you want SO to win a class competition for you? Then you are at the wrong place.
– b-fg
Nov 20 '18 at 8:23