hanaml.TTestPaired {hana.ml.r}R Documentation

Paired sample TTest

Description

Perform the T-test for the mean difference of two paired samples.

Usage

hanaml.TTestPaired(conn.context,
                   data,
                   cols = NULL,
                   mu = NULL,
                   test.type = NULL,
                   var.equal = NULL,
                   conf.level = NULL)

Arguments

conn.context

ConnectionContext Database connection object.

data

DataFrame Dataframe containing the data.

cols

character, optional
Names of the two columns for paired samples.
No default value. If not specified, then data must only have two columns, otherwise an error shall be issued.

mu

double, optional
Hypothesized mean of the population underlying the sample.
Defaults to '0'.

test.type

character, optional
The alternative hypothesis type.

  • 'two_sides'

  • 'less'

  • 'greater'

Defaults to 'two_sides'.

var.equal

logical, optional
Controls whether to assume that the two samples have equal variance.
Defaults to FALSE.

conf.level

double, optional
Confidence level for alternative hypothesis confidence interval.
Defaults to '0.95'.

Value

Dataframe
Statistics of the paired sample T-test.

Examples

    ## Not run: 
 Original data
 > data$Collect()
   X1 X2
 1  1 10
 2  2 12
 3  4 11
 4  7 15
 5  3 10

 Performing Paired sample t-test
 > output2<- hanaml.TTestPaired(conn, data = data)
 > output2$stats.output$Collect()
                STAT_NAME    STAT_VALUE
 1                t-value -1.406288e+01
 2      degree of freedom  4.000000e+00
 3                p-value  1.483726e-04
 4 _PAL_MEAN_DIFFERENCES_ -8.200000e+00
 5       confidence level  9.500000e-01
 6             lowerLimit -9.818932e+00
 7             upperLimit -6.581068e+00

## End(Not run)
[Package hana.ml.r version 1.0.8 Index]