This data frame consists of 1243 rows and 8 columns. The column names are
|---East (X)
|---North (Y)
|---Elevation (Z)
|---Fe (%)
|---AL2O3 (%)
|---Mn (%)
|---P (%)
|---Lithology
Fe (%)
is the concentration of Iron in the deposit.AL2O3 (%)
is the concentration of Aluminium Oxide in the deposit.Mn (%)
is the concentration of Manganese in the deposit.P (%)
is the concentration of Phosphorous in the deposit.Lithology
is a categorical variable (1 or 2).
There were several rows with partial or completely missing values (replaced by -99). We removed such rows and the cleaned data frame consists of 607 rows and 8 columns. We noticed there were repeated data collected at the same East (X) and North (Y) but at varying Elevations (Z). We decided to merge such rows into a single row by averaging the values for the numerical variable and replace the mode value for the categorical variable (Lithology). The merged data frame consists of 181 rows and 8 columns.
Descriptive Statistics
- Mean, five-number summary, standard deviation etc for Fe concentration. DONE.
Correlation Matrix
Frequency Distributions and Cross Tables
- Frequency and relative frequency table for Fe Concentration. DONE
Exploratory Data Analysis
- Histogram for Fe Concentration. DONE
Variogram
Variogram Parameters
Parameter | Definition |
---|---|
sill | Limit of the variogram tending to infinity lag distances. |
range | The distance in which the difference of the variogram from the sill becomes negligible. |
nugget | The height of the jump of the semivariogram at the discontinuity at the origin. |
Variogram Models
Model | Definition |
---|---|
Exp | Exponential. |
Sph | Spherical. |
Gau | Gaussian. |
Kriging
Dr. Nasser Madani, Dr. Emmanouil Varouchakis and Dr. Ashok Krishnamurthy.
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