Questions tagged [multi-dimensional-scaling]

84 questions
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How to add multi dimensional IloRangeArray to the model on CPLEX

I'm a beginner in CPLEx and using it to wite my mathematical model. I defined and built a three dimensional IloRangeArray as my constraint as follows: typedef IloArray> ThreeDimRange; con = IloArray
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Snapping output of Multidimensional Scaling to a Grid

I have a set of nodes in a system with imprecise distances between them. Each node sits at a unique point in a grid setting. When I apply the smacof-MDS algorithm on my dataset I can "visually" identify the original grid, however I want to script…
Onur
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Multidimensional Scaling Error

I use Orange Program for Data mining. In this platform, I use the function which is Multidimensional Scaling.(MDS) My input file is 7224 * 150 matrix. After running MDS function, an error is occurred. When I run a small size file, MDS function runs…
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How to display plant species biomass in a site by species matrix?

I earlier asked "How to display two columns as binary (presence/absence) matrix?". This question received two excellent answers. I would now like to take this a step further and add a third column to the original site by species columns which…
tabtimm
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Plot geographic coordinates alongside with multidimensional scaling coordinates in R

The problem described deals with representing multidimensional scaling (MDS) coordinates alongside with real data points (longitude and latitute of cities). So, I have a distance matrix, which is uploaded here. The entries in the matrix represent…
Andrej
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Algorithm to visualise data (multidimensional scaling?) in PHP project

I have small matrix of +-100 points/values, results of test and their distances (0-10, 10 is the closest) to each other: http://vis.arcs.cz. I would like to visualize it in 2D to quickly find a groups of close values. So I need to process this…
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Difficulty with smacofSym - multidimensional scaling

I have a question concerning the smacofSym function in the Smacof package. I am using R version 3.1.0 through RStudio Version 0.98.501. I am using the following command: MDSdata <- smacofSym(DJaccardMatrix, ndim=2, metric=FALSE,…
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Multidimensional scaling matrix error

I'm trying to use multidimensional scaling in Matlab. The goal is to convert a similarity matrix to scatter plot (in order to use k-means). I've got the following test set: London Stockholm Lisboa Madrid Paris Amsterdam Berlin Prague Rome…
Pakspul
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Plotting metaMDS results: How do I get a horizontal plot with a one-dimensional MDS?

I'm making a one-dimensional rescaling using the metaMDS function from the vegan package as follows: mydata <- data.frame(X = sample(1:50), Y = sample(1:50), Z = sample(1:50)) mds <- metaMDS(mydata, distance="euclidian", autotransform=FALSE,…
Fabian Fagerholm
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