For depth analysis of a 2D plot data, geoscientists need to be able to calculate the half-width of the tangent to the curve of the anomaly graph of magnetic and/or gravity data. More can be read about the Peter's Half-Slope method for depth estima...

to be able to make in one opération (one script or one module) an ACP and Easypoint (or another module)

Currently it is not possible to create a sim/dis matrix from a dataset with missing values. It might be worthwile to allow this option, as already possible in R. Missing values better correspond to the reality of many data projects.

It would be really useful to make the permuted clustering table that is used to construct heat maps available. Currently the heat map gives you the list of genes as labels of the heatmap graph but this doesn't allow the user to manipulate for furt...

In factor analysis, it would thus allow , to eliminate iteratively the item that less contribute to the internal consistancy of the scale : item analysys through the first unrotated component . IN PSYCHOMETRY or other domaines. THANKS ! Claude Fo...

XLSTAT has a few similarity coefficients, but data must be in binary format. XLSTAT will do the conversion, but this adds an extra step to the calculation. There are Python packages that will compute similarity coefficients on sets, strings, and s...

XLSTAT now has the Rogers & Tanimoto coefficient, but it lacks the Tanimoto coefficient, which is the most widely use similarity coefficient in cheminformatics and some other fields.

Many times, we encountered challenge of number of testing products is more than number of products that can be tested by consumers in a study. For example, if we want to test 8 ice creams in a day, and definitely consumers cannot eat all 8 ice cre...