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Unmodified column name index in patsy


Unmodified column name index in patsy

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Unmodified column name index in patsy
Tag : python , By : Frank Rotolo
Date : November 25 2020, 03:01 PM

this one helps. In general, there is no one-to-one mapping between categorical values like a2 and design matrix columns. The column you're talking about is already more complicated than that -- it's a treatment contrast between the a2 and a1 values -- and things can be arbitrarily more complicated than that (e.g. consider Helmert or polynomial coding).
If you know that you want to look up the treatment contrast associated with a2 of the variable a, then you can use
def column_for_treatment(design_info, factor, value):
    column_name = "{}[T.{}]".format(factor, value)
    return design_info.column_name_indexes[colum_name]

column_for_treatment(x.design_info, "a", "a2")

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update column data if present else keep unmodified in mysql query


Tag : mysql , By : Ricardo
Date : March 29 2020, 07:55 AM
may help you . try this one
update user set gender = case when gender = 'Male' then 'Female' when gender='Female' then 'Male' else '' end

Interaction effects in patsy with patsy.dmatrices giving duplicate columns for ":" as with "+" , or


Tag : python-2.7 , By : unfool
Date : March 29 2020, 07:55 AM
may help you . I have a dataframe with columns, both of which I intend to treat as categorical variables. , Short answer: try event_int ~ -1 + time_day:country
Long answer:

VBA Copy Column and Paste Values to Last Unmodified Column


Tag : vba , By : snapshooter
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , When you said "moves to column E", I assume you meant "Copies to column E". Please try this code below
Sub Copy_Col()
    Dim lc As Long
    With ActiveSheet
        lc = .Cells(1, .Columns.Count).End(xlToLeft).Column
        Selection.Copy
        .Cells(1, lc + 1).PasteSpecial
        .Range("A1").Select
    End With
    Application.CutCopyMode = False
End Sub

how to make NULL values in UPDATE to leave column unmodified


Tag : node.js , By : JSebok
Date : March 29 2020, 07:55 AM
Any of those help Try using the COALESCE function to set a column to its current value if the parameter provided for that column is NULL. This is ISO SQL standard stuff except the names of parameters. I don't know what RDBMS you're using, but I assume it supports named parameters (all modern RDBMS databases support named parameters, but using their own different syntax)
UPDATE
    foo
SET
    Col1 = COALESCE( @param1, Col1 ),
    Col2 = COALESCE( @param2, Col2 ),
    Col3 = COALESCE( @param3, Col3 )
WHERE
    PrimaryKeyCol = @primaryKey

How can I turn a list of column names into a patsy formula string?


Tag : python , By : Stone
Date : March 29 2020, 07:55 AM
hop of those help? I have a list of pandas column names (consisting of all dummy variables) that I would like to turn into a formula string to copy and paste for statsmodels.
temp = ['yrs_owned_model_28', 'yrs_owned_model_32', 'yrs_owned_model_35',
           'cm_ded_model_0', 'cm_ded_model_100', 'cm_ded_model_250',
           'cm_ded_model_500', 'cm_ded_model_750', 'cm_ded_model_1000',
           'cm_ded_model_2500']

output = " + ".join(temp)
print(output)
temp = ['yrs_owned_model_28', 'yrs_owned_model_32', 'yrs_owned_model_35',
           'cm_ded_model_0', 'cm_ded_model_100', 'cm_ded_model_250',
           'cm_ded_model_500', 'cm_ded_model_750', 'cm_ded_model_1000',
           'cm_ded_model_2500']

output = ""
for col in temp:
    output += col
    output += ' + '

output = output[:-3]
print(output)
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