Sorting a list while keeping its correspondence to another list

up vote
5
down vote

favorite

I have the following two lists:

ids = {5, 11, 17, 24, 31, 37, 40, 39, 38, 33, 32, 25}



values = {0.0351563, 0.131836, 0.086792, 0.0637894, 0.065752, 0.191388, 0.063796, 0.173784, 0.0503769, 0.0875244, 0.0146484, 0.0351563}

where entries in values correspond to entries in ids.

I now wish to sort ids in ascending order while maintaining the correspondence to values, such that elements in values must be changed according to the changes made to ids.

How can that be achieved?

edited Dec 2 at 16:49

asked Dec 2 at 16:40

user120911

53818

values[[Ordering@ids]] and SortBy[Transpose[{ids, values}], First] == Transpose[{Sort@ids, values[[Ordering@ids]]}]
– user1066
Dec 2 at 17:53

add a comment |

up vote
5
down vote

favorite

I have the following two lists:

ids = {5, 11, 17, 24, 31, 37, 40, 39, 38, 33, 32, 25}



values = {0.0351563, 0.131836, 0.086792, 0.0637894, 0.065752, 0.191388, 0.063796, 0.173784, 0.0503769, 0.0875244, 0.0146484, 0.0351563}

where entries in values correspond to entries in ids.

I now wish to sort ids in ascending order while maintaining the correspondence to values, such that elements in values must be changed according to the changes made to ids.

How can that be achieved?

edited Dec 2 at 16:49

asked Dec 2 at 16:40

user120911

53818

values[[Ordering@ids]] and SortBy[Transpose[{ids, values}], First] == Transpose[{Sort@ids, values[[Ordering@ids]]}]
– user1066
Dec 2 at 17:53

add a comment |

up vote
5
down vote

favorite

I have the following two lists:

ids = {5, 11, 17, 24, 31, 37, 40, 39, 38, 33, 32, 25}



values = {0.0351563, 0.131836, 0.086792, 0.0637894, 0.065752, 0.191388, 0.063796, 0.173784, 0.0503769, 0.0875244, 0.0146484, 0.0351563}

where entries in values correspond to entries in ids.

I now wish to sort ids in ascending order while maintaining the correspondence to values, such that elements in values must be changed according to the changes made to ids.

How can that be achieved?

edited Dec 2 at 16:49

asked Dec 2 at 16:40

user120911

53818

I have the following two lists:

ids = {5, 11, 17, 24, 31, 37, 40, 39, 38, 33, 32, 25}



values = {0.0351563, 0.131836, 0.086792, 0.0637894, 0.065752, 0.191388, 0.063796, 0.173784, 0.0503769, 0.0875244, 0.0146484, 0.0351563}

where entries in values correspond to entries in ids.

I now wish to sort ids in ascending order while maintaining the correspondence to values, such that elements in values must be changed according to the changes made to ids.

How can that be achieved?

list-manipulation

edited Dec 2 at 16:49

asked Dec 2 at 16:40

user120911

53818

edited Dec 2 at 16:49

asked Dec 2 at 16:40

user120911

53818

edited Dec 2 at 16:49

asked Dec 2 at 16:40

user120911

53818

asked Dec 2 at 16:40

user120911

53818

asked Dec 2 at 16:40

user120911

53818

values[[Ordering@ids]] and SortBy[Transpose[{ids, values}], First] == Transpose[{Sort@ids, values[[Ordering@ids]]}]
– user1066
Dec 2 at 17:53

add a comment |

values[[Ordering@ids]] and SortBy[Transpose[{ids, values}], First] == Transpose[{Sort@ids, values[[Ordering@ids]]}]
– user1066
Dec 2 at 17:53

values[[Ordering@ids]] and SortBy[Transpose[{ids, values}], First] == Transpose[{Sort@ids, values[[Ordering@ids]]}]
– user1066
Dec 2 at 17:53

add a comment |

4 Answers
4

active

oldest

votes

up vote
5
down vote

accepted

With[{p = Ordering[ids]},

 idsnew = ids[[p]];

 valuesnew = values[[p]];

 ]

idsnew

valuesnew

{5, 11, 17, 24, 25, 31, 32, 33, 37, 38, 39, 40}

{0.0351563, 0.131836, 0.086792, 0.0637894, 0.0351563, 0.065752, 0.0146484, 0.0875244, 0.191388, 0.0503769, 0.173784, 0.063796}

edited Dec 2 at 17:06

answered Dec 2 at 16:48

Henrik Schumacher

47k466134

This generates an error for me: Set::write: Tag Times in valuesnew {5,11,17,24,25,31,32,33,37,38,39,40} is Protected.
– user120911
Dec 2 at 16:59

Sorry, I missed a semicolon that was necessary after wrapping everything with With. Please try again.
– Henrik Schumacher
Dec 2 at 17:07

add a comment |

up vote
4
down vote

I would keep them together while sorting.

SortBy[Transpose[{ids, values}], First]

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,

   0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37, 

  0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 16:45

Johu

3,6531037

See also my remark under Okke's post.
– Henrik Schumacher
Dec 2 at 18:17

add a comment |

up vote
4
down vote

AssociationThread[ids, values] // KeySort

Edit
To extract keys and values

sorted = AssociationThread[ids, values] // KeySort

sortedIds = Keys[sorted]

sortedValues = Values[sorted]

edited Dec 2 at 17:24

answered Dec 2 at 16:46

Rohit Namjoshi

7031110

This looks simple, but how do I work with these afterwards?
– user120911
Dec 2 at 17:00

@user120911 Added sorted key / value extraction.
– Rohit Namjoshi
Dec 2 at 17:24

add a comment |

up vote
2
down vote

Since Sort sort it by the first entry by default

Sort@Transpose@{ids, values}

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,
0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37,
0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 18:07

Okkes Dulgerci

3,7131716

1

A problem that arises here with Transpose is is that it unpacks arrays: ids is a list of integers and values is a list of machine reals. So both can be packed separately; but not Transpose@{ids, values} as it has mixed data types. This may become important when processing large datasets.
– Henrik Schumacher
Dec 2 at 18:16

add a comment |

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4 Answers
4

active

oldest

votes

4 Answers
4

active

oldest

votes

up vote
5
down vote

accepted

With[{p = Ordering[ids]},

 idsnew = ids[[p]];

 valuesnew = values[[p]];

 ]

idsnew

valuesnew

{5, 11, 17, 24, 25, 31, 32, 33, 37, 38, 39, 40}

{0.0351563, 0.131836, 0.086792, 0.0637894, 0.0351563, 0.065752, 0.0146484, 0.0875244, 0.191388, 0.0503769, 0.173784, 0.063796}

edited Dec 2 at 17:06

answered Dec 2 at 16:48

Henrik Schumacher

47k466134

This generates an error for me: Set::write: Tag Times in valuesnew {5,11,17,24,25,31,32,33,37,38,39,40} is Protected.
– user120911
Dec 2 at 16:59

Sorry, I missed a semicolon that was necessary after wrapping everything with With. Please try again.
– Henrik Schumacher
Dec 2 at 17:07

add a comment |

up vote
5
down vote

accepted

With[{p = Ordering[ids]},

 idsnew = ids[[p]];

 valuesnew = values[[p]];

 ]

idsnew

valuesnew

{5, 11, 17, 24, 25, 31, 32, 33, 37, 38, 39, 40}

{0.0351563, 0.131836, 0.086792, 0.0637894, 0.0351563, 0.065752, 0.0146484, 0.0875244, 0.191388, 0.0503769, 0.173784, 0.063796}

edited Dec 2 at 17:06

answered Dec 2 at 16:48

Henrik Schumacher

47k466134

This generates an error for me: Set::write: Tag Times in valuesnew {5,11,17,24,25,31,32,33,37,38,39,40} is Protected.
– user120911
Dec 2 at 16:59

Sorry, I missed a semicolon that was necessary after wrapping everything with With. Please try again.
– Henrik Schumacher
Dec 2 at 17:07

add a comment |

up vote
5
down vote

accepted

With[{p = Ordering[ids]},

 idsnew = ids[[p]];

 valuesnew = values[[p]];

 ]

idsnew

valuesnew

{5, 11, 17, 24, 25, 31, 32, 33, 37, 38, 39, 40}

{0.0351563, 0.131836, 0.086792, 0.0637894, 0.0351563, 0.065752, 0.0146484, 0.0875244, 0.191388, 0.0503769, 0.173784, 0.063796}

edited Dec 2 at 17:06

answered Dec 2 at 16:48

Henrik Schumacher

47k466134

With[{p = Ordering[ids]},

 idsnew = ids[[p]];

 valuesnew = values[[p]];

 ]

idsnew

valuesnew

{5, 11, 17, 24, 25, 31, 32, 33, 37, 38, 39, 40}

{0.0351563, 0.131836, 0.086792, 0.0637894, 0.0351563, 0.065752, 0.0146484, 0.0875244, 0.191388, 0.0503769, 0.173784, 0.063796}

edited Dec 2 at 17:06

answered Dec 2 at 16:48

Henrik Schumacher

47k466134

edited Dec 2 at 17:06

answered Dec 2 at 16:48

Henrik Schumacher

47k466134

answered Dec 2 at 16:48

Henrik Schumacher

47k466134

answered Dec 2 at 16:48

Henrik Schumacher

47k466134

This generates an error for me: Set::write: Tag Times in valuesnew {5,11,17,24,25,31,32,33,37,38,39,40} is Protected.
– user120911
Dec 2 at 16:59

Sorry, I missed a semicolon that was necessary after wrapping everything with With. Please try again.
– Henrik Schumacher
Dec 2 at 17:07

add a comment |

This generates an error for me: Set::write: Tag Times in valuesnew {5,11,17,24,25,31,32,33,37,38,39,40} is Protected.
– user120911
Dec 2 at 16:59

Sorry, I missed a semicolon that was necessary after wrapping everything with With. Please try again.
– Henrik Schumacher
Dec 2 at 17:07

This generates an error for me: Set::write: Tag Times in valuesnew {5,11,17,24,25,31,32,33,37,38,39,40} is Protected.
– user120911
Dec 2 at 16:59

Sorry, I missed a semicolon that was necessary after wrapping everything with With. Please try again.
– Henrik Schumacher
Dec 2 at 17:07

add a comment |

up vote
4
down vote

I would keep them together while sorting.

SortBy[Transpose[{ids, values}], First]

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,

   0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37, 

  0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 16:45

Johu

3,6531037

See also my remark under Okke's post.
– Henrik Schumacher
Dec 2 at 18:17

add a comment |

up vote
4
down vote

I would keep them together while sorting.

SortBy[Transpose[{ids, values}], First]

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,

   0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37, 

  0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 16:45

Johu

3,6531037

See also my remark under Okke's post.
– Henrik Schumacher
Dec 2 at 18:17

add a comment |

up vote
4
down vote

I would keep them together while sorting.

SortBy[Transpose[{ids, values}], First]

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,

   0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37, 

  0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 16:45

Johu

3,6531037

I would keep them together while sorting.

SortBy[Transpose[{ids, values}], First]

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,

   0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37, 

  0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 16:45

Johu

3,6531037

answered Dec 2 at 16:45

Johu

3,6531037

answered Dec 2 at 16:45

Johu

3,6531037

answered Dec 2 at 16:45

Johu

3,6531037

See also my remark under Okke's post.
– Henrik Schumacher
Dec 2 at 18:17

add a comment |

See also my remark under Okke's post.
– Henrik Schumacher
Dec 2 at 18:17

See also my remark under Okke's post.
– Henrik Schumacher
Dec 2 at 18:17

add a comment |

up vote
4
down vote

AssociationThread[ids, values] // KeySort

Edit
To extract keys and values

sorted = AssociationThread[ids, values] // KeySort

sortedIds = Keys[sorted]

sortedValues = Values[sorted]

edited Dec 2 at 17:24

answered Dec 2 at 16:46

Rohit Namjoshi

7031110

This looks simple, but how do I work with these afterwards?
– user120911
Dec 2 at 17:00

@user120911 Added sorted key / value extraction.
– Rohit Namjoshi
Dec 2 at 17:24

add a comment |

up vote
4
down vote

AssociationThread[ids, values] // KeySort

Edit
To extract keys and values

sorted = AssociationThread[ids, values] // KeySort

sortedIds = Keys[sorted]

sortedValues = Values[sorted]

edited Dec 2 at 17:24

answered Dec 2 at 16:46

Rohit Namjoshi

7031110

This looks simple, but how do I work with these afterwards?
– user120911
Dec 2 at 17:00

@user120911 Added sorted key / value extraction.
– Rohit Namjoshi
Dec 2 at 17:24

add a comment |

up vote
4
down vote

AssociationThread[ids, values] // KeySort

Edit
To extract keys and values

sorted = AssociationThread[ids, values] // KeySort

sortedIds = Keys[sorted]

sortedValues = Values[sorted]

edited Dec 2 at 17:24

answered Dec 2 at 16:46

Rohit Namjoshi

7031110

AssociationThread[ids, values] // KeySort

Edit
To extract keys and values

sorted = AssociationThread[ids, values] // KeySort

sortedIds = Keys[sorted]

sortedValues = Values[sorted]

edited Dec 2 at 17:24

answered Dec 2 at 16:46

Rohit Namjoshi

7031110

edited Dec 2 at 17:24

answered Dec 2 at 16:46

Rohit Namjoshi

7031110

answered Dec 2 at 16:46

Rohit Namjoshi

7031110

answered Dec 2 at 16:46

Rohit Namjoshi

7031110

This looks simple, but how do I work with these afterwards?
– user120911
Dec 2 at 17:00

@user120911 Added sorted key / value extraction.
– Rohit Namjoshi
Dec 2 at 17:24

add a comment |

This looks simple, but how do I work with these afterwards?
– user120911
Dec 2 at 17:00

@user120911 Added sorted key / value extraction.
– Rohit Namjoshi
Dec 2 at 17:24

This looks simple, but how do I work with these afterwards?
– user120911
Dec 2 at 17:00

@user120911 Added sorted key / value extraction.
– Rohit Namjoshi
Dec 2 at 17:24

add a comment |

up vote
2
down vote

Since Sort sort it by the first entry by default

Sort@Transpose@{ids, values}

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,
0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37,
0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 18:07

Okkes Dulgerci

3,7131716

1

A problem that arises here with Transpose is is that it unpacks arrays: ids is a list of integers and values is a list of machine reals. So both can be packed separately; but not Transpose@{ids, values} as it has mixed data types. This may become important when processing large datasets.
– Henrik Schumacher
Dec 2 at 18:16

add a comment |

up vote
2
down vote

Since Sort sort it by the first entry by default

Sort@Transpose@{ids, values}

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,
0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37,
0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 18:07

Okkes Dulgerci

3,7131716

1

A problem that arises here with Transpose is is that it unpacks arrays: ids is a list of integers and values is a list of machine reals. So both can be packed separately; but not Transpose@{ids, values} as it has mixed data types. This may become important when processing large datasets.
– Henrik Schumacher
Dec 2 at 18:16

add a comment |

up vote
2
down vote

Since Sort sort it by the first entry by default

Sort@Transpose@{ids, values}

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,
0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37,
0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 18:07

Okkes Dulgerci

3,7131716

Since Sort sort it by the first entry by default

Sort@Transpose@{ids, values}

{{5, 0.0351563}, {11, 0.131836}, {17, 0.086792}, {24, 0.0637894}, {25,
0.0351563}, {31, 0.065752}, {32, 0.0146484}, {33, 0.0875244}, {37,
0.191388}, {38, 0.0503769}, {39, 0.173784}, {40, 0.063796}}

answered Dec 2 at 18:07

Okkes Dulgerci

3,7131716

answered Dec 2 at 18:07

Okkes Dulgerci

3,7131716

answered Dec 2 at 18:07

Okkes Dulgerci

3,7131716

answered Dec 2 at 18:07

Okkes Dulgerci

3,7131716

1

A problem that arises here with Transpose is is that it unpacks arrays: ids is a list of integers and values is a list of machine reals. So both can be packed separately; but not Transpose@{ids, values} as it has mixed data types. This may become important when processing large datasets.
– Henrik Schumacher
Dec 2 at 18:16

add a comment |

1

A problem that arises here with Transpose is is that it unpacks arrays: ids is a list of integers and values is a list of machine reals. So both can be packed separately; but not Transpose@{ids, values} as it has mixed data types. This may become important when processing large datasets.
– Henrik Schumacher
Dec 2 at 18:16

A problem that arises here with Transpose is is that it unpacks arrays: ids is a list of integers and values is a list of machine reals. So both can be packed separately; but not Transpose@{ids, values} as it has mixed data types. This may become important when processing large datasets.
– Henrik Schumacher
Dec 2 at 18:16

add a comment |

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