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Questions tagged [mds]

Questions regarding MDS - Multidimensional Scaling R functions

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How to compute/extract the residual variance from an Isomap [vegan] model in R

I am currently trying to understand how Isomap results will differ from PCA and MDS and if they are more suited for my data. For this I started to work with the isomap function provided by vegan in R using the BCI dataset and their basic example…
Philipp Maurischat
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Clear explanation of NMDS ordination standard deviation ellipses and confidence intervals

I am looking for a clear explanation of how to correctly interpret ordination ellipses on an NMDS plot and how that interpretation changes with different user-selected confidence levels and ellipse 'kinds' (eg. standard error vs. standard…
Michael Spear
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How do I add a vector onto an NMDS in R?

I am trying to work out if Salinity has any effect on invertebrate community structure. I've managed to make my NMDS but every time I try ordiplot or envfit there are errors with unsuitable data type. Is there another vector command I could…
Ellie Welch
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MasterDataService 2017 Plugin not connecting in Office 365 Excel App (SQL Server 2017)

We have recently migrated from SQL Server 2014 to 2017 and have upgraded to Windows 10. Post migration activity we have installed the MasterDataServices 2017 plug in for Excel. The plug in appears on my Office 365 Excel App. However when I try to…
Maddi
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multidimensional scaling in r with corpus

I would like to ask does anybody used MDS with corpus in R (not numerical data, but text)? If yes, I would need technical help (usable script, Which function is followed the MDS scripts? Thank you for the answer Andrea
Andrea Strelicz
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How can I make my data point labels interactive in R studio?

I have a NMDS plot overlaid with PCA scores. I have 45 PCA vectors that are each an animal species. The issue is that the labels of my arrows (animal names) overlap one another. I was wondering if there was a way I could make the graph interactive…
Roxanne Tremblay
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Add categories in MDS plot

I) PROBLEM Let’s say I have a matrix like this with distances (in kilometers) between the homes of different people. | | Person 1 | Person 2 | Person 3 | |----------|----------|----------|----------| | Person 1 | | | …
ag_1812
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labeling nmds plot by column values in r

I ran metaMDS and want to plot and color code by a grouping based on certain data frame characters. In my original data frame, df$yr are years and df$2 are sites. I want to color by the years. caltmds <- metaMDS(df[,3:12], k=3) plot(caltmds, type =…
KNN
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r - dotted and solid ellipses by group for ggord NMDS plot

I am using the code below to ask a question about using grouping to change the ellipse line types. # to install ggord library(devtools) install_github("fawda123/ggord") library("ggord") library("vegan") library("data.table") irises <- iris irises…
iembry
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Error in FUN(X[[i]], ...) : only defined on a data frame with all numeric variables in running a MDS in vegan

Hello I am trying to run an MDS to create a plot these are my data A B C D B_2016 54.67 3.67 10 1 Emb_2016 37.67 10.33 1.67 10.33 Fes_2016 19.33 32.67 2.67 …
Claire
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How does MDS plot axes relate to S:N ratio?

Say I have a MDS plot as shown below: Now, say everything in the MDS plot looks exactly the same (the position of the colored dots does not change). But only one thing changes: the x-axis ("first dimension"): 1) If the x-axis limits goes from -200…
user1830307
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Plot each cluster by a single point (Kmeans Clustering)

I have clustered different texts into 15 clusters. The texts are in the form: "Oreo Biscuit is good" "Healthy Breakfast "Cars are fast" .... I converted the texts into Word2Vec of 100 dimensions. Now I have 15 clusters, which I want to…
Jerry George
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How to get the Value of a Domain attribute with Master Data Services (MDS) WCF API

To get the grips of the MDS WCF API I started a .Net Core console application. I'm struggling to find detailed documentation on the data structure used in the API. I now have a simple function that uses EntityMembersGet to read the Members (rows) of…
RJD
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Label and add colour to an MDS plot in R

I have created an MDS plot in R using the following code: library(ggplot2) data<-read_csv("Uni/MSci/Project/DATA/new data sheets/comparisons/matrix for MDS.csv") matrix<-data.matrix(data[2:25]) d <- dist(t(matrix)) c<-cmdscale(d, eig=TRUE,k=2) x…
A.Carter
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MDS stored procedure

I am working on stored procedures in SQL for master data services.I want to create a stored procedure for slowly changing dimension 2 concept. Can someone pls explain me about @memberIdlist?Moreover can someone explain me about how to update on a…
Ishu
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