How to replace one parameter with multiple values

Question

I am a beginner. I have a function with one parameter and I would like to replace a list of values that have names. I would like a result so that the names are not lost.
values = {a-> 1, b-> 2};

If I ignore the names, I get what I want:
Evaluate[x/6 /.x -> {1, 2}]
(*  {1/6, 1/3}  *)

But I would like to get a result like:
{a -> 1/6, b -> 1/3}

Is it possible?

cvgmt · Answer

values = {a -> 1, b -> 2};
asso = Association[values]
(#/6) & /@ asso // Normal

kglr · Answer

values = {a -> 1, b -> 2};
Association[values]/6

<|a -> 1/6, b -> 1/3|>

Normal @ %

{a -> 1/6, b -> 1/3}

Also
values /. x_?NumericQ :> x/6

MapAt[#/6 &, values, {All, 2}]

SubsetMap[#/6&, values, {All ,2}]

ReplacePart[values, {i_,2}:> values[[i,2]]/6]

Module[{v = #}, v[[All, 2]] = v[[All, 2]]/6; v] &@values

all give

{a -> 1/6, b -> 1/3}

How to replace one parameter with multiple values

2 Answers

Add your own answers!

Ask a Question