Excel Solver VBA -


one of equations in solver model creating in excel vba macro follows:

solveradd cellref:="$m$18:$m$30", relation:=2, formulatext:="$n$18:$n$30"

how implement row number "18" value can read input cell? example, cell a1 may have value 18, want used in equation. if value in a1 10, equation should read as:

solveradd cellref:="$m$10:$m$30", relation:=2, formulatext:="$n$10:$n$30"

similarly, variables defined as:

solverok setcell:="$h$47", maxminval:=2, valueof:=0, bychange:="$h$18:$j$30,$r$18:$r$30", _     engine:=1, enginedesc:="simplex lp"

again, when value of number in cell a1 changes from, 18 10, variables should change "$h$18:$j$30,$r$18:$r$30" "$h$10:$j$30,$r$10:$r$30".

i appreciate suggestions.

thanks lot.

  • to have variable input use this: input_variable = .cells(1,1) or input_variable = range("a1") , change "$m"&input_variable&":$m$30

refer question further ways: vba: selecting range variables or range variable vba

  • another alternative use solverstudio, useful, because model in excel using famous optmisation libraries.

as problems grows, excel seems unable solve problems , there many other professional softwares uses optimisation modelling languages.

if try install problems can happen, enter link solve: help page problem different , solved here.

in classes taught in ampl, programming solverstudio easier excel vba, because solverstudio's languages focused on optimisation problems.


Comments

Post a Comment

Popular posts from this blog

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m
Read more

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

sql server - Why does Linq-to-SQL add unnecessary COUNT()? -

here tables: create table customer ( cid int primary key, name varchar(32) ) create table ord ( oid int primary key, cid int foreign key references customer, address varchar(20) ) here's linq-to-sql statement: var aaa = c in db.customer select new { c, o = c.ord.tolist() }; and here's inexplicable query generated linq-to-sql: select [t0].[cid] [cid], [t0].[name] [name], [t1].[oid] [oid], [t1].[cid] [cid2], [t1].[address] [address], (select count(*) [dbo].[ord] [t2] [t2].[cid] = [t0].[cid]) [value] [dbo].[customer] [t0] left outer join [dbo].[ord] [t1] on [t1].[cid] = [t0].[cid] order [t0].[cid], [t1].[oid] i want understand how rid of count(*) part. it's entirely uncalled for! linq needs count(*) in order determine number of entries returned o = c.ord.tolist() .
Read more