QlikView Reference Manual.pdf - QlikCommunity - QlikView

eturns the aggregated student's t-test df value (degrees of freedom) for two independent series of values iterated
over a number of records as defined by a group by clause. See the TTest_t (group, value [, eq_var =
true]) (page 295) function for argument descriptions.
Example:
Load Year, ttest_df(Group, Value) as X from abc.csv group by Year;
TTest_sig (group, value [, eq_var = true])
returns the aggregated student's t-test 2-tailed level of significance for two independent series of values iterated
over a number of records as defined by a group by clause. See the TTest_t (group, value [, eq_var =
true]) (page 295) function for argument descriptions.
Example:
Load Year, ttest_sig(Group, Value) as X from abc.csv group by Year;
TTest_dif (group, value [, eq_var = true])
returns the aggregated student's t-test mean difference for two independent series of values iterated over a
number of records as defined by a group by clause. See the TTest_t (group, value [, eq_var = true]) (page
295) function for argument descriptions.
Example:
Load Year, ttest_dif(Group, Value) as X from abc.csv group by Year;
TTest_sterr (group, value [, eq_var = true])
returns the aggregated student's t-test standard error of the mean difference for two independent series of
values iterated over a number of records as defined by a group by clause. See the TTest_t (group, value [,
eq_var = true]) (page 295) function for argument descriptions.
Example:
Load Year, ttest_sterr(Group, Value) as X from abc.csv group by Year;
TTest_conf (group, value [, sig = 0.025 [, eq_var = true]])
returns the aggregated t value for two independent series of values iterated over a number of records as
defined by a group by clause. The two-tailed level of significance can be specified in sig. If omitted sig will
be set to 0.025, resulting in a 95% confidence interval. See the TTest_t (group, value [, eq_var = true])
(page 295) function for descriptions of the other arguments.
Example:
Load Year, ttest_conf(Group, Value) as X from abc.csv group by Year;
TTest_lower (group, value [, sig = 0.025 [, eq_var = true]])
returns the aggregated value for the lower end of the confidence interval for two independent series of values
iterated over a number of records as defined by a group by clause. See the TTest_t (group, value [, eq_var =
true]) (page 295) and TTest_conf (group, value [, sig = 0.025 [, eq_var = true]]) (page 296) functions for
argument descriptions.
Example:
Load Year, ttest_lower(Group, Value) as X from abc.csv group by Year;
TTest_upper (group, value [, sig = 0.025 [, eq_var = true]])
returns the aggregated value for the upper end of the confidence interval for two independent series of values
iterated over a number of records as defined by a group by clause. See the TTest_t (group, value [, eq_var =
true]) (page 295) and TTest_conf (group, value [, sig = 0.025 [, eq_var = true]]) (page 296) functions for
argument descriptions.
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