statsmodels.sandbox.regression.try_ols_anova.form2design
-
statsmodels.sandbox.regression.try_ols_anova.form2design(ss, data)
[source] -
convert string formula to data dictionary
-
ss : string
-
- I : add constant
- varname : for simple varnames data is used as is
- F:varname : create dummy variables for factor varname
- P:varname1*varname2 : create product dummy variables for varnames
- G:varname1*varname2 : create product between factor and continuous variable
-
data : dict or structured array
- data set, access of variables by name as in dictionaries
Returns: vars : dictionary
dictionary of variables with converted dummy variables
names : list
list of names, product (P:) and grouped continuous variables (G:) have name by joining individual names sorted according to input
Notes
with sorted dict, separate name list wouldn?t be necessary
Examples
>>> xx, n = form2design('I a F:b P:c*d G:c*f', testdata) >>> xx.keys() ['a', 'b', 'const', 'cf', 'cd'] >>> n ['const', 'a', 'b', 'cd', 'cf']
-
Please login to continue.