Community Profile # Gustavo Lunardon

Last seen: Today Active since 2020

#### Statistics

• • • #### Content Feed

View by

Question

Spectral clustering: K-means replicates setting to improve reliability
Hello, The command spectralcluster in matlab can use k-means as part of its algortihm (and is the default in the options Clus...

### 1

Question

Self Organizing Map - objective function?
Given a dataset, the self organizing map command in MATLAB will assign the data to different clusters if run several times due t...

### 0

Question

Partial Least Squares regression - confidence interval of the predicted variable (response)
Hello all, I am interested in obtaining confidence intervals for the response variable of PLS (Partial Least Squares Regres...

### 1

Question

Test occupancy in arbitrary region - Monte Carlo Integration - Uniformity test
Hello all, I want to do a Monte Carlo integration (because integral limits make it nontrivial) and of course the sampling metho...

### 0

Question

Optimization: difficult characteristics discontinuous + stiff + medium size (~20-30 variables) + constrained
Hello, I am looking for suggestions for algorithms that could cope with a difficult optimization problem. Of course, if it is f...

### 0

Question

Optimization: Reuse calculations from objective function in nonlinear constraints function
Hello, Is it possible to reuse calculations from one function in the other to save computational effort? Example: functio...

ungefär ett år ago | 2 answers | 0

### 2

Question

Nonlinear constraint on optimization using ODE - system state involved
Hello, I need to incorporate a nonlinear constraint on my optimization problem but there is a ODE involved. The constraint in...

ungefär ett år ago | 1 answer | 0

### 1

Question

Bug in equality checks? 28.15e-3 == 28.15/1000 false
Why does this happen? It does not regocnize equality on 7.48e-3 == 7.48/1000, but it does on 7.47e-3 == 7.47/1000 as well. Anoth...

nästan 2 år ago | 2 answers | 0

### 2

Producing a NaN only where there is a NaN, zero otherwise
Added as an answer rather than a comment now X = [-inf, -1, -eps, 0, realmin, 2, 1+i, pi, flintmax, realmax, inf, NaN]; brok...

mer än 2 år ago | 3

Question

ODE Event - Terminal
Hello. I have a problem with my ode event. I want it to stop integration if one of the variables to be integrated is a complex n...

ungefär 3 år ago | 0 answers | 0