Computes covariance matrix

Description

hanaml.CovarianceMatrix is a R wrapper for PAL Multivariate Analysis.

Usage

hanaml.CovarianceMatrix(conn.context, data, cols=NULL)

Arguments

Details

Computes Covriance matrix between any two data samples (columns)

Value

covariance.matrix : Dataframe Dataframe containing the covariance between any two data samples(columns). structured as follows:

• ID, type NVARCHAR. The values of this column are the column names from cols.

• Covariance columns, type DOUBLE, named after the columns in 'cols'. The covariance between variables X and Y is in column X, in the row with ID value Y.

Examples

## Not run: 
> df
   X    Y    Z
1  1  2.4  5.1
2  5  3.5  6.2
3  3  8.9  8.3
4 10 -1.4  9.4
5 -4 -3.5 11.5
6 11 32.8 12.6

> hanaml.CovarianceMatrix(conn, data = df)
  ID        X         Y      Z
1  X 31.86667  44.47333  3.500
2  Y 44.47333 176.67767 17.957
3  Z  3.50000  17.95700  8.555

> hanaml.CovarianceMatrix(conn, data = df, cols = list('X', 'Y'))
  ID        X         Y
1  X 31.86667  44.47333
2  Y 44.47333 176.67767


## End(Not run)