vba - Output/Print variable, in code, in if statement -

i trying achieve following: user shown excel spread sheet list of assumption can change.

title       |     value        | input01     |       10         |  = input02     |       2          |  >= input03     |       800        |  >= input04     |       4          |  >= input05     |       2          |  <= 

there if .. then statement pulls in data if assumption met. if assumption blanc, should not included in if .. then statement.

if x = input01value , y >= input02value _ , z >= input03value , >= input04value _ , b <= input05value 

user ommits input03

if x = input01value , y >= input02value _ , >= input04value , b <= input05value 

now check see if each value exist, , follow if statement appropriate variables. seems bit redundant.

i wondering if following possible:

input 01 = "" if input01value != "" input01 = "x = " & input01value 'then use join or similar join of them .. 

and use input01 directly in if .. then statement. way when variable empty and .. not included , if statement not fail.
eg. (i know doesn't work, illustrating scenario)

vba: if input01 result while compiling: if x = input01value 

please note, know following:
if boolean , variable2 > 4 then , have boolean , variable2 populate value in cell, issue if user, example, decides omit variable2 (which reasonable) fail. eg. if (boolean = true) , > 4 then.

hope question clear, help.

what using function operates on select case depending on string operator , 2 values?

function conditionalstring(condition string, x variant, y variant) boolean select case condition     case "="         if (x = y)             conditionalstring = true         else             conditionalstring = false         end if         exit function     case ">="         conditionalstring = (x >= y)         exit function     case "<="         conditionalstring = (x <= y)         exit function     case ">"         conditionalstring = (x > y)         exit function     case "<"         conditionalstring = (x < y)         exit function     case else         conditionalstring = false end select end function 

you have function, "check if value isn't blank" before calling assumptions.