By contrast, the 97.5th percentile of the t-distribution with 29 degrees of freedom (2.045), which is the critical value for a two-tail test with a 5% significance level. For example, the 95th percentile of the t-distribution with 29 degrees of freedom (1.699), which is the critical value for an upper-tail test with a 5% significance level. Press the return/enter key to see the result at the bottom of the screen. To find a percentile (critical value) for a t-distribution, type the Command window, where p is the lower-tail area (i.e., one minus the one-tail significance level) and df is the degrees of freedom.Repeat for other indicator variables (if necessary). Type, for example, 1, 0),where xis the qualitative variable and level is the name of one of the categories in x. To create indicator (dummy) variables from a qualitative variable, select Quick > Generate Series.If you get an error message, this probably means that there is a syntax error in your equation-a common mistake is to forget the multiplication symbol ( *) between a number and a variable (e.g., 2*xrepresents 2x). Click OK to create the new variable, which will be added to the dataset (check it looks correct in the Workfile) it can now be used just like any other variable. Examples are logx=log(x) for the natural logarithm of X and xsq=x^2 for x 2. Type a name (with no spaces) for the new variable in the Enter equation box, then =, then type a mathematical expression for the variable. To transform data or compute a new variable, select Quick > Generate Series.For example, to find out about “boxplots” click the Index tab, type boxplots in the first box, and select the index entry you want in the second box. You can access help by selecting Help > EViews Help Topics.Output appears in separate windows, from where it can be copied and pasted to a word processor like OpenOffice Writer or Microsoft Word.EViews does not appear to offer a way to recall a previously used dialog box.You can also open other files, such as Excel spreadsheets or SPSS data files. To open an EViews data file, select File > Open > EViews Workfile.If desired, change EViews’ default options by selecting Options > General Options.Getting started and summarizing univariate data
#EVIEWS REGRESSION SOFTWARE#
Find instructions for other statistical software packages here. These instructions are based on EViews 7 for Windows, but they (or something similar) should also work for other versions. The numbered items cross-reference with the “computer help” references in the book. These instructions accompany Applied Regression Modeling by Iain Pardoe, 3rd edition, Wiley, 2020.
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