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How to use a variable to specify column name in ggplot
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169
You can use aes_string:
f <- function( column ) {
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ggplot( rates.by.groups, aes...
Python Pandas: Get index of rows which column matches certain value
... pd.DataFrame({'BoolCol': [True, False, False, True, True]},
index=[10,20,30,40,50])
In [53]: df
Out[53]:
BoolCol
10 True
20 False
30 False
40 True
50 True
[5 rows x 1 columns]
In [54]: df.index[df['BoolCol']].tolist()
Out[54]: [10, 40, 50]
If you want to use the index...
How to create a fixed-size array of objects
...I want first to initialize it empty, then I would put Sprites in the first 16 cells, and the last 16 cells (simulating an chess game).
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Error renaming a column in MySQL
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edited Nov 3 '16 at 21:53
c0degeas
49055 silver badges1515 bronze badges
answered Oct 23 '10...
Size of Matrix OpenCV
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241
cv:Mat mat;
int rows = mat.rows;
int cols = mat.cols;
cv::Size s = mat.size();
rows = s.height;...
How do you use variables in a simple PostgreSQL script?
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10 Answers
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How to compare DateTime in C#?
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182
MSDN: DateTime.Compare
DateTime date1 = new DateTime(2009, 8, 1, 0, 0, 0);
DateTime date2 = n...
How to check if all list items have the same value and return it, or return an “otherValue” if they
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155
var val = yyy.First().Value;
return yyy.All(x=>x.Value == val) ? val : otherValue;
Clean...
What is self-documenting code and can it replace well documented code? [closed]
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How connect Postgres to localhost server using pgAdmin on Ubuntu?
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answered Jul 23 '14 at 19:00
Eric WorkmanEric Workman
1,19799 silver badges1212 bronze badges
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