swaheera

Error: Error in as.data.frame.OptPathDF(opt.path, include.rest = FALSE) : No elements where selected (via 'dob' and 'eol')!

8

I recently got this error while trying to perform multiobjective constrained optimization with the mlrMBO library: ``` library(mlrMBO) obj.fn = makeMultiObjectiveFunction( name = "My test function", fn = function(x1, x2,...

Hello Dr. Richter, I ran the following code using your library ``` library(mlrMBO) obj.fn = makeMultiObjectiveFunction( name = "My test function", fn = function(x1, x2, x3, x4) { var_1

Final Answer from mlrMBO outside of the specified variable ranges (multi objective function)

2

I am working with R, and I am trying to perform multi-objective constrained Bayesian optimization using the "mlrMBO" library (https://cran.r-project.org/web/packages/mlrMBO/mlrMBO.pdf). I wrote the following code to optimize some arbitrary function...

Hello! Great work with the data visualization! Where can we find the data files required for this? E.g. df

GA for the Travelling Salesman Problem

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Suppose I have 20 cities and the Longitude/Latitude for each of these cities : ``` final_data = data.frame( long = rnorm(20, -74, 1 ), lat = rnorm(20, 40, 1 ))...

I am trying to optimize a function that can accept "numerical" and "factor" inputs. For the optimization, I am using the "GA" library. Here are the references I am using:...

I am interested in using this to search Google News articles on specific topics. I had the following questions about this: Suppose I wanted to search for "apple" and "covid"...

Multi Objective Optimization

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Hello! Using the "ParBayesianOptimization" package, it possible to use this package for "multi objective optimization" (e.g. optimize several cost functions together)? For example, below I have included an example of...

Hello! I am having a lot of trouble following the instructions and installing the R libpostal library. I was wondering - perhaps in the future, this package could be made...

Finding the LINK_ID for a Reddit Post?

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Hello! **I am trying to get the "link_id" for reddit posts based on a title search.** For example, when I search : https://api.pushshift.io/reddit/search/submission/?title=trump I get the following results: ``` "data":...