K := x^3*y^4 + 6*x^2*y^3 + 3*x*y^4 + x^2*y^2 + 2*x*y^3;

f := (x, y) -> K; f(t, x);

It displays as x^3*y^4 + 6*x^2*y^3 + 3*x*y^4 + x^2*y^2 + 2*x*y^3;

instead of t^3*x^4 + 6*t^2*x^3 + 3*t*x^4 + t^2*x^2 + 2*t*x^3

But if i do direct assignment like f := (x, y) ->x^3*y^4 + 6*x^2*y^3 + 3*x*y^4 + x^2*y^2 + 2*x*y^3;

Then f(t,x) becomes and displays as t^3*x^4 + 6*t^2*x^3 + 3*t*x^4 + t^2*x^2 + 2*t*x^3;

But I want it like f:=(x,y)->K Later I should be able to make f(t,x) or f(p,s) like that K i can take some arbitary polynomial

What I mean by shortest distance between vertex and edge is

In the above petersen graph consider the vertex say 1 it's distance to

(1,6) will be 0 as 1 is part of the same edge

((1,2) will be 0 again

(1,5) it will zero again

(5,8) will be 1 that is (1,5)-(5,8)

(8,9) it will be 2 that is (1,5)-(5,8)-(8,9)

(5,4) it will be 1 that is (1,5)-(5,4)

(9,10) it will be 2 (1,5)-(5,4)-(9,10)

Etc for all edges the graph from a given vertex v given a Graph G

The order in which the edges are chosen to find the distances should be maintained so that each index in the list correspond to distance of that vertex from the same edge in different vertex lists in a order 

Kind help I apologize to take your time 

In output I need a list say T=[0, 0,1,2,..]

   Data given

   List Given

  L:=[A,B,A,C,A,B,D,E,A,F,G,H,H,G,I,P,Q,W,A]

    I want the output to be a frequency table

    Frequency says number of times each Data occurs in the list

    I want output in the form of a table

    Data need not be always A,B,C,D etc it can be any text.

I want to export this outputed table to word or Excel

A function such that given a Graph G and vertex say v as input to a function

It should output the sum of the degrees of all the neighbors of that vertex v in that graph G 

Kind help thank you 

Given a list say

A=[1, 2,6,7,9,10,15,17]

If I give a=3 and b=5

I should get a sublist containing all elements from 3 to 5 in index

That is [6,7,9] sublist of the above list

Kind help