Set all columns as index, or convert a dataframe to a multiindex series
up vote
1
down vote
favorite
I have the following dataframe:
from to x ratea
1 2 0.4 10
1 4 0.6 80
1 5 0.2 10
2 3 0.2 10
2 4 0.4 10
2 6 0.3 10
3 5 0.2 10
4 6 0.3 10
My goal is to have something like the following:
from to
1 2 x 0.4
1 2 ratea 10
1 4 x 0.6
1 4 ratea 80
1 5 x 0.2
1 5 ratea 10
2 3 x 0.2
2 3 ratea 10
2 4 x 0.4
2 4 ratea 10
2 6 x 0.3
2 6 ratea 10
3 5 x 0.2
3 5 ratea 10
4 6 x 0.3
4 6 ratea 10
How would I do this conversion?
PS unstack() did not help either (or maybe I did not use it probably).
python python-3.x pandas dataframe series
asked Nov 11 at 7:58
Ali
826
add a comment |
up vote
1
down vote
favorite
I have the following dataframe:
from to x ratea
1 2 0.4 10
1 4 0.6 80
1 5 0.2 10
2 3 0.2 10
2 4 0.4 10
2 6 0.3 10
3 5 0.2 10
4 6 0.3 10
My goal is to have something like the following:
from to
1 2 x 0.4
1 2 ratea 10
1 4 x 0.6
1 4 ratea 80
1 5 x 0.2
1 5 ratea 10
2 3 x 0.2
2 3 ratea 10
2 4 x 0.4
2 4 ratea 10
2 6 x 0.3
2 6 ratea 10
3 5 x 0.2
3 5 ratea 10
4 6 x 0.3
4 6 ratea 10
How would I do this conversion?
PS unstack() did not help either (or maybe I did not use it probably).
python python-3.x pandas dataframe series
asked Nov 11 at 7:58
Ali
826
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I have the following dataframe:
from to x ratea
1 2 0.4 10
1 4 0.6 80
1 5 0.2 10
2 3 0.2 10
2 4 0.4 10
2 6 0.3 10
3 5 0.2 10
4 6 0.3 10
My goal is to have something like the following:
from to
1 2 x 0.4
1 2 ratea 10
1 4 x 0.6
1 4 ratea 80
1 5 x 0.2
1 5 ratea 10
2 3 x 0.2
2 3 ratea 10
2 4 x 0.4
2 4 ratea 10
2 6 x 0.3
2 6 ratea 10
3 5 x 0.2
3 5 ratea 10
4 6 x 0.3
4 6 ratea 10
How would I do this conversion?
PS unstack() did not help either (or maybe I did not use it probably).
python python-3.x pandas dataframe series
asked Nov 11 at 7:58
Ali
826
I have the following dataframe:
from to x ratea
1 2 0.4 10
1 4 0.6 80
1 5 0.2 10
2 3 0.2 10
2 4 0.4 10
2 6 0.3 10
3 5 0.2 10
4 6 0.3 10
My goal is to have something like the following:
from to
1 2 x 0.4
1 2 ratea 10
1 4 x 0.6
1 4 ratea 80
1 5 x 0.2
1 5 ratea 10
2 3 x 0.2
2 3 ratea 10
2 4 x 0.4
2 4 ratea 10
2 6 x 0.3
2 6 ratea 10
3 5 x 0.2
3 5 ratea 10
4 6 x 0.3
4 6 ratea 10
How would I do this conversion?
PS unstack() did not help either (or maybe I did not use it probably).
python python-3.x pandas dataframe series
python python-3.x pandas dataframe series
asked Nov 11 at 7:58
Ali
826
asked Nov 11 at 7:58
Ali
826
asked Nov 11 at 7:58
Ali
826
asked Nov 11 at 7:58
Ali
826
asked Nov 11 at 7:58
Ali
826
826
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
1
down vote
accepted
Use set_index with stack with rename_axis for set new index names:
s = df.set_index(['from','to']).stack().rename_axis(['from','to','val'])
print (s)
from to val
1 2 x 0.4
ratea 10.0
4 x 0.6
ratea 80.0
5 x 0.2
ratea 10.0
2 3 x 0.2
ratea 10.0
4 x 0.4
ratea 10.0
6 x 0.3
ratea 10.0
3 5 x 0.2
ratea 10.0
4 6 x 0.3
ratea 10.0
dtype: float64
answered Nov 11 at 7:59
jezrael
311k21246322
Thank you very much. You don't know how many hours was wasted on this. You are a lifesaver :) You were so fast in answering that I can't accept the answer :) I have to wait 10 minutes apparently :)
– Ali
Nov 11 at 8:03
1
@Ali - You are welcome!
– jezrael
Nov 11 at 8:03
Is there anyway that I could name that column so I could put all of those as index, i.e. how do I convert this to a multiindex series?
– Ali
Nov 11 at 21:28
1
@Ali - check edited answer.
– jezrael
Nov 12 at 15:51
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
accepted
Use set_index with stack with rename_axis for set new index names:
s = df.set_index(['from','to']).stack().rename_axis(['from','to','val'])
print (s)
from to val
1 2 x 0.4
ratea 10.0
4 x 0.6
ratea 80.0
5 x 0.2
ratea 10.0
2 3 x 0.2
ratea 10.0
4 x 0.4
ratea 10.0
6 x 0.3
ratea 10.0
3 5 x 0.2
ratea 10.0
4 6 x 0.3
ratea 10.0
dtype: float64
answered Nov 11 at 7:59
jezrael
311k21246322
Thank you very much. You don't know how many hours was wasted on this. You are a lifesaver :) You were so fast in answering that I can't accept the answer :) I have to wait 10 minutes apparently :)
– Ali
Nov 11 at 8:03
1
@Ali - You are welcome!
– jezrael
Nov 11 at 8:03
Is there anyway that I could name that column so I could put all of those as index, i.e. how do I convert this to a multiindex series?
– Ali
Nov 11 at 21:28
1
@Ali - check edited answer.
– jezrael
Nov 12 at 15:51
add a comment |
up vote
1
down vote
accepted
Use set_index with stack with rename_axis for set new index names:
s = df.set_index(['from','to']).stack().rename_axis(['from','to','val'])
print (s)
from to val
1 2 x 0.4
ratea 10.0
4 x 0.6
ratea 80.0
5 x 0.2
ratea 10.0
2 3 x 0.2
ratea 10.0
4 x 0.4
ratea 10.0
6 x 0.3
ratea 10.0
3 5 x 0.2
ratea 10.0
4 6 x 0.3
ratea 10.0
dtype: float64
answered Nov 11 at 7:59
jezrael
311k21246322
Thank you very much. You don't know how many hours was wasted on this. You are a lifesaver :) You were so fast in answering that I can't accept the answer :) I have to wait 10 minutes apparently :)
– Ali
Nov 11 at 8:03
1
@Ali - You are welcome!
– jezrael
Nov 11 at 8:03
Is there anyway that I could name that column so I could put all of those as index, i.e. how do I convert this to a multiindex series?
– Ali
Nov 11 at 21:28
1
@Ali - check edited answer.
– jezrael
Nov 12 at 15:51
add a comment |
up vote
1
down vote
accepted
up vote
1
down vote
accepted
Use set_index with stack with rename_axis for set new index names:
s = df.set_index(['from','to']).stack().rename_axis(['from','to','val'])
print (s)
from to val
1 2 x 0.4
ratea 10.0
4 x 0.6
ratea 80.0
5 x 0.2
ratea 10.0
2 3 x 0.2
ratea 10.0
4 x 0.4
ratea 10.0
6 x 0.3
ratea 10.0
3 5 x 0.2
ratea 10.0
4 6 x 0.3
ratea 10.0
dtype: float64
answered Nov 11 at 7:59
jezrael
311k21246322
Use set_index with stack with rename_axis for set new index names:
s = df.set_index(['from','to']).stack().rename_axis(['from','to','val'])
print (s)
from to val
1 2 x 0.4
ratea 10.0
4 x 0.6
ratea 80.0
5 x 0.2
ratea 10.0
2 3 x 0.2
ratea 10.0
4 x 0.4
ratea 10.0
6 x 0.3
ratea 10.0
3 5 x 0.2
ratea 10.0
4 6 x 0.3
ratea 10.0
dtype: float64
answered Nov 11 at 7:59
jezrael
311k21246322
edited Nov 12 at 15:50
answered Nov 11 at 7:59
jezrael
311k21246322
answered Nov 11 at 7:59
jezrael
311k21246322
answered Nov 11 at 7:59
jezrael
311k21246322
311k21246322
Thank you very much. You don't know how many hours was wasted on this. You are a lifesaver :) You were so fast in answering that I can't accept the answer :) I have to wait 10 minutes apparently :)
– Ali
Nov 11 at 8:03
1
@Ali - You are welcome!
– jezrael
Nov 11 at 8:03
Is there anyway that I could name that column so I could put all of those as index, i.e. how do I convert this to a multiindex series?
– Ali
Nov 11 at 21:28
1
@Ali - check edited answer.
– jezrael
Nov 12 at 15:51
add a comment |
Thank you very much. You don't know how many hours was wasted on this. You are a lifesaver :) You were so fast in answering that I can't accept the answer :) I have to wait 10 minutes apparently :)
– Ali
Nov 11 at 8:03
1
@Ali - You are welcome!
– jezrael
Nov 11 at 8:03
Is there anyway that I could name that column so I could put all of those as index, i.e. how do I convert this to a multiindex series?
– Ali
Nov 11 at 21:28
1
@Ali - check edited answer.
– jezrael
Nov 12 at 15:51
Thank you very much. You don't know how many hours was wasted on this. You are a lifesaver :) You were so fast in answering that I can't accept the answer :) I have to wait 10 minutes apparently :)
– Ali
Nov 11 at 8:03
Thank you very much. You don't know how many hours was wasted on this. You are a lifesaver :) You were so fast in answering that I can't accept the answer :) I have to wait 10 minutes apparently :)
– Ali
Nov 11 at 8:03
1
1
@Ali - You are welcome!
– jezrael
Nov 11 at 8:03
@Ali - You are welcome!
– jezrael
Nov 11 at 8:03
Is there anyway that I could name that column so I could put all of those as index, i.e. how do I convert this to a multiindex series?
– Ali
Nov 11 at 21:28
Is there anyway that I could name that column so I could put all of those as index, i.e. how do I convert this to a multiindex series?
– Ali
Nov 11 at 21:28
1
1
@Ali - check edited answer.
– jezrael
Nov 12 at 15:51
@Ali - check edited answer.
– jezrael
Nov 12 at 15:51
add a comment |
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