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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());
}
});
}
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Floating View 扩展：悬浮视图扩展，将组件转换为悬浮窗口 · App Inventor 2 中文网
...应用等。
包名：com.jdl.FloatingView
版本：1.2
发布日期：2020年6月14日
最后更新：2020年6月28日
作者：Jarlisson
文件大小：20.2 KB
下载链接
扩展文件：
com.jdl.FloatingView.aix
示例文件：
FloatingView.aia
功能...
Suppressing “is never used” and “is never assigned to” warnings in C#
...nings for "Field XYZ is never used", you do this:
#pragma warning disable 0169
... field declaration
#pragma warning restore 0169
To suppress warnings for "Field XYZ is never assigned to, and will always have its default value XX", you do this:
#pragma warning disable 0649
... field declaration
...
Having a UITextField in a UITableViewCell
...essoryType = UITableViewCellAccessoryNone;
if ([indexPath section] == 0) {
UITextField *playerTextField = [[UITextField alloc] initWithFrame:CGRectMake(110, 10, 185, 30)];
playerTextField.adjustsFontSizeToFitWidth = YES;
playerTextField.textColor = [UIColor blackColor];
...
Change timestamps while rebasing git branch
...
answered Oct 16 '09 at 18:36
Michael Krelin - hackerMichael Krelin - hacker
113k1818 gold badges181181 silver badges166166 bronze badges
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Draw radius around a point in Google map
I'm using the Google Maps API and have added markers. Now I want to add a 10 mile radius around each marker, meaning a circle that behaves appropriately while zooming. I have no idea how to do that and it seems it's not something common.
...
When should I use perror(“…”) and fprintf(stderr, “…”)?
... |
edited Aug 22 '16 at 20:11
Jonathan Lam
14.7k1313 gold badges5757 silver badges8383 bronze badges
an...
Right to Left support for Twitter Bootstrap 3
...
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Difference between size_t and std::size_t
...
90
C's size_t and C++'s std::size_t are both same.
In C, it's defined in <stddef.h> and in ...