SQI CAL: Soil quality index calculation
SQI Cal ensures the soil health assessment with the help of soil quality indexing. It is a free, automated Soil Quality Indexing calculator. Here it will calculate PCA, Weight, Scoring and Soil Quality Index of any given numeric data values in .CSV file.
- Column names for the following soil variable is case sensitive, therefore should be written like "B", "Cu", "Fe", "Mn", "Mo", "Zn", "pH". And all these columns must be in mg/kg or PPM.
- There is an additional factor to keep in mind is no of column to ignore. one must mention correct no of columns that is needed to ignore, for accuracy of output.
- Please remember that the output of final Soil Quality Index is dependent on scoring. therefore, be careful while choosing the scoring function.
Soil Qulity Indexing Algorithm
- Get input in .CSV format from the user.
- Calculate Principal component analysis of given input data.
- Generate Eigen value, Eigen vector, PCA Cord and PCA Contribution.
- Find a new Eigen value table on the basis of Eigen value greater than 1.
- Calculate the weight from Eigen value .
- Perform variable selection from PCA Coord table.
- Perform scoring of initial input value on the basis of 3 properties:-
- Less is better
- More is better
- Optimum is better
- Calculate soil quality indexing with Updated weight and scoring output.
