1

1 month AGO
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Hi everyone. Is there a way to obtain values of Cook’s distance in MLR? I am trying to identify influential observations by use of studentized residuals and Cook’s D statistics. This was kind of advised procedure for a specific problem I am currently dealing with. Thanks in advance.…

1

3 months AGO
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I tried making the model with SVMR on my data set having 75% as training set and rest for external prediction the R squared value for calibration and cross validation were quite good, but how to get the R squared value for the Prection data set, I also tried copying the results into excel and [&hell…

1

3 months AGO
views

Greeting. Please, which option in Uscramblr 10.3 gives me: Equal scale in PLS predicted vs. measured plot. (I prefer sometimes equal scale instead of auto scale sometimes). Thanks for your cooperation.…

2

4 months AGO
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In a univariate experiment one can add known amounts of an analyte to a sample. The equation of the linear regression line y=ax+b can then be extrapolated to where y=0. The concentration of the analyte is then equal to the absolute value of x. I like to use this method with near-infrared spectrome…

1

5 months AGO
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Hello, Is it possible to do variable selection methods with the Unscrambler X program. I am working with ICP-MS data and want to calculate F-ratios for each element and subsequently perform degree of class separation to try and refine the elements i’m using within my PCA plots, for the purpose…

1

6 months AGO
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Hello, is it possible to use a LDA directly on spectroscopic data without a PCA for data reduction? Does it make sense? In general there is always the combination PCA-LDA on spectroscopic data. In literature it is not usual just using the LDA directly. But are there any reasons besides the data redu…

2

7 months AGO
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Hello, I have just begun to use Python script in Unscrambler 11, and I have created my first Random Forest Classification model. I have first crated the model with “RandomForestClassifierBuildModel”, then I applied it to data with RandomForestClassifierClassify”. Apparently all wen…

2

8 months AGO
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Hi, I am new to NIR and Multivariate Data Analysis but i am getting better at it; i started using the Unscrambler software for my analysis and it seems to give good visualization and results. I like to ask few questions please. I am trying to use Cross-Validation and Test Set Validation methods f…

1

8 months AGO
views

When Saving a model by right-clicking on the model node in the Unscrambler Project Navigator and selecting ‘Save Model…’, the size of my model file is around 50Mb. Is there a way to obtain a smaller model file?…

0

9 months AGO
views

With Anaconda there is a need to manually update some file paths in order to run Numpy and Pandas libraries from within Unscrambler. A description is provided in the attachment.…

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## Latest replies

External Admin

Cook's Distance is available if you perform MLR in Design Expert, the DOE software that comes with Unscrambler. If you build a PLS model in Unscrambler on the same data, using the full rank model (include the maximum number of components), student…

Cook's Distance is available if you perform MLR in Design Expert, the DOE software that comes with Unscrambler. If you build a PLS model in Unscrambler on the same data, using the full rank model (include the maximum number of components), student…

External Admin

To get the R squared value for the Prediction data set in SVMR you will have to make a copy of the predicted values from the test set (Insert-Duplicate Matrix) and copy the reference values into the adjacent column (Ctrl-Shift-C and then Insert copie…

To get the R squared value for the Prediction data set in SVMR you will have to make a copy of the predicted values from the test set (Insert-Duplicate Matrix) and copy the reference values into the adjacent column (Ctrl-Shift-C and then Insert copie…

LeslieMetrics

Right-click on the plot and select 'Properties' in the menu that appears. On the left side of the window that appears, select the axis you want to format, for example 'AxisX'. On the right side, there is an option to untick the automatic scaling (unt…

Right-click on the plot and select 'Properties' in the menu that appears. On the left side of the window that appears, select the axis you want to format, for example 'AxisX'. On the right side, there is an option to untick the automatic scaling (unt…