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QlikView Reference Manual.pdf - QlikCommunity - QlikView

QlikView Reference Manual.pdf - QlikCommunity - QlikView

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67 Statistics Chart Wizard<br />

The Statistics chart wizard provides guidance for those who want to apply common statistical tests on data<br />

in <strong>QlikView</strong>.<br />

67.1 Starting the Statistics Chart Wizard<br />

Start the statistics chart wizard by choosing Statistics Chart Wizard from the Layout menu. The first page<br />

offers a choice of statistical tests. Select the appropriate type of test and then click Next to continue.<br />

Please note that <strong>QlikView</strong> supports more types of tests than those covered in the wizard. Read more about<br />

this under Statistical Test Functions in Charts (page 785) and Statistical Test Functions in Script (page<br />

295). For further information about statistical tests and their uses, please refer to a statistics text book.<br />

67.2 Chi2-Test<br />

This option generates a straight table with values returned from a Chi2-test. A Chi2-test is often used to compare<br />

two sets of values and determine the probability that the two sets come from the same statistical distribution.<br />

To obtain the Chi2-test chart, you must specify the following:<br />

Column Specify a field or expression returning column headers for the test data sample.<br />

Row Specify a field or expression returning row headers for the test data sample.<br />

Value Specify a field or expression returning test value data.<br />

Expected Value Mark this check box if you want to test against expected value. Enter a field<br />

name or an expression returning expected value in the edit box below. If<br />

expected values are not specified, the test will be made for variations within<br />

the rows/columns.<br />

p (Show p-value / Significance)<br />

Mark this check box to include the p value (significance) in the resulting<br />

chart.<br />

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