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VarMod.help
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1988-03-16
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STATPACK instructions in variable modification mode:
Block - create a new variable to index the cells of an ANOVA or a
contingency table - e.g. with 3 categories and blocks of length
two, the variable is (1,1,2,2,3,3,1,1,2,2,...)
Combine - combine two variables by addition, subtract, multiplication, or
division to create a new variable
Constant - add, subtract, multiply, or divide all values of a variable by a
constant
Delete - eliminate a defined variable
Edit - change one specific value of a variable
If Then - create a new variable by a series of if-then tests on an existing
variable
Help - display this help file
Lag Lead - create a new variable having a specified lag or lead with respect
to an existing time series variable
List - output a list of up to 6 variables for 1 or more observations
Logical - apply a logical test to values of a variable to create a new
variable with 1 where the test is true and 0 otherwise
Miss Val - change the missing value code of a variable
Names - display names of variables presently defined
Regroup - create new categories for a variable labelled either by their
interval centres or as consecutive positive integers
Rename - change the name of a variable
Return - return to main menu of instructions
Sort - sort a variable in ascending order of its own values or of those
of another variable (maximum vector size 600)
Transform - transform a variable: log, power (square root, square, reciprocal,
etc.), exponential, sin, cos.