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Specifying column name in a “references” migration
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61
Do it manually:
add_column :post, :author_id, :integer
but now, when you create the belongs_t...
Can I specify a custom location to “search for views” in ASP.NET MVC?
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10 Answers
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Group by multiple columns in dplyr, using string vector input
...ike so:
data = data.frame(
asihckhdoydkhxiydfgfTgdsx = sample(LETTERS[1:3], 100, replace=TRUE),
a30mvxigxkghc5cdsvxvyv0ja = sample(LETTERS[1:3], 100, replace=TRUE),
value = rnorm(100)
)
# get the columns we want to average within
columns = names(data)[-3]
library(dplyr)
df1 <- data...
What is the “-->” operator in C++?
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edited Dec 23 '18 at 15:46
community wiki
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Modifying a subset of rows in a pandas dataframe
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edited Dec 3 '18 at 6:52
answered Sep 6 '12 at 19:37
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CSS Progress Circle [closed]
...e ones I have been able to found show animated circles that go to the full 100%.
4 Answers
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How to find out which view is focused?
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113
Call getCurrentFocus() on the Activity.
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NHibernate.MappingException: No persister for: XYZ
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16 Answers
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$.ajax - dataType
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183
contentType is the HTTP header sent to the server, specifying a particular format.
Example: I...