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Sophia


12 total contributions since 2011

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Question


create ordinal array for multiple groups
I need to categorize a dataset according to different groups. For the example below, I want to create an ordinal array that diff...

3 years ago | 0 Answers | 0

0

answers

Question


How to use ISMEMBER when not all rows match
I'm trying to dynamically update and compare values corresponding to their respective ID. This problem is easy if all ID's are s...

3 years ago | 1 Answers | 0

1

answer

Question


Linprog doesn't satisfy b constraints when it contains negative coefficients?
I'm trying to maximize an objective function using linprog. A simplified version (of an assignment problem) is to maximize: ...

4 years ago | 1 Answers | 0

1

answer

Question


FMINCON giving incorrect values?
I am trying to solve the max of the following nonlinear function: F = (((.8*buyp*1.1+.2*buyp*.95)-buyp)*265000*7.33)/(1+0...

4 years ago | 1 Answers | 0

1

answer

Question


How to overwrite some workspace variables in a dynamic program?
Hello, I have a dynamic program that creates objects in the workspace (datasets, matrices) with the same name each loop but t...

4 years ago | 2 Answers | 0

2

answers

Question


Solve non-linear equation with 2 unknowns and lb/ub constraints
Hello, I'm trying to maximize an objective function with 2 unknown variables subject to lower/upper bound constraints on the un...

4 years ago | 2 Answers | 0

2

answers

Answered
creating weighted sample for a matrix
Thanks Sean, I figured it out. I add a unique ID to the first column of the sample matrix (route_sample) and perform randsample ...

4 years ago | 0

| accepted

Question


creating weighted sample for a matrix
I need to create a sample from an m by n matrix. Each row has a probability associated with it and can be treated as one obser...

4 years ago | 2 Answers | 0

2

answers

Question


How to freeze a random sample
I need to generate a random sample between (0,1) and freeze it so that when I run the program again it generates the same "rando...

5 years ago | 4 Answers | 0

4

answers

Question


Looping through 3D matrix
Hi, I'm trying to populate a 3D matrix of zeros (3x14x12), nextvoy with a subset of rows in another matrix, trade, according to ...

5 years ago | 1 Answers | 0

1

answer

Posted


Binary Integer Programming with Lambda option?
Hello, I have a linear programming problem and would like to use linprog but the values of my x matrix (the vector I'm solving ...

5 years ago | 1510 views

Question


Looping through two matrices with IF statement
[EDIT: Mon May 23 16:36:16 UTC 2011 - Reformat - MKF] Hello, I am having problems with my for loop statement (see code at botto...

5 years ago | 1 Answers | 0

1

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