大约有 35,470 项符合查询结果(耗时:0.0541秒) [XML]
How to force R to use a specified factor level as reference in a regression?
... the relevel() function. Here is an example:
set.seed(123)
x <- rnorm(100)
DF <- data.frame(x = x,
y = 4 + (1.5*x) + rnorm(100, sd = 2),
b = gl(5, 20))
head(DF)
str(DF)
m1 <- lm(y ~ x + b, data = DF)
summary(m1)
Now alter the factor b in DF by use of th...
Is there a way to programmatically scroll a scroll view to a specific edit text?
...e
public void run() {
your_scrollview.scrollTo(0, your_EditBox.getBottom());
}
});
}
share
|
improve this answer
|
follow...
What are the advantages of NumPy over regular Python lists?
... lists -- a list of lists as you describe, in Python, would take at least 20 MB or so, while a NumPy 3D array with single-precision floats in the cells would fit in 4 MB. Access in reading and writing items is also faster with NumPy.
Maybe you don't care that much for just a million cells, but you ...
What is the fastest method for selecting descendant elements in jQuery?
...
answered Jul 5 '10 at 7:33
Aaron HarunAaron Harun
21.7k88 gold badges4242 silver badges6161 bronze badges
...
How to specify JVM maximum heap size “-Xmx” for running an application with “run” action in SBT?
... iwein
23.5k88 gold badges6565 silver badges105105 bronze badges
answered Oct 29 '10 at 16:59
ArneArne
6,93444 gold badges3...
Add property to anonymous type after creation
...
answered Jul 19 '11 at 20:40
LevitikonLevitikon
7,15188 gold badges5050 silver badges7070 bronze badges
...
How can I build multiple submit buttons django form?
...
answered May 14 '09 at 23:03
Ayman HouriehAyman Hourieh
107k1717 gold badges135135 silver badges113113 bronze badges
...
Location of parenthesis for auto-executing anonymous JavaScript functions?
...
answered Aug 2 '10 at 1:49
meder omuralievmeder omuraliev
166k6262 gold badges359359 silver badges420420 bronze badges
...
How to have no pagebreak after \include in LaTeX
...
gschenkgschenk
35033 silver badges1212 bronze badges
...
What is the difference between hg forget and hg remove?
...
|
edited Jul 11 '09 at 3:37
answered Jul 9 '09 at 4:58
...