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pull out p-values and r-squared from a linear regression
...mmary object summary(fit)$r.squared. See names(summary(fit)) for a list of all the items you can extract directly.
Model p-value: If you want to obtain the p-value of the overall regression model,
this blog post outlines a function to return the p-value:
lmp <- function (modelobject) {
if ...
How to instantiate a File object in JavaScript?
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@PA.Buisson I'm not sure if this holds for all cases(it was sufficient for me), but you can use the Blob() constructor instead, as suggested here
– raymondboswel
Jan 23 '17 at 10:07
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How to animate the change of image in an UIImageView?
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I am not sure if you can animate UIViews with fade effect as it seems all supported view transitions are defined in UIViewAnimationTransition enumeration. Fading effect can be achieved using CoreAnimation. Sample example for this approach:
#import <QuartzCore/QuartzCore.h>
...
imageView....
Factors in R: more than an annoyance?
...of the basic data types in R is factors. In my experience factors are basically a pain and I never use them. I always convert to characters. I feel oddly like I'm missing something.
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Pythonic way to find maximum value and its index in a list?
If I want the maximum value in a list, I can just write max(List) , but what if I also need the index of the maximum value?
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file_put_contents - failed to open stream: Permission denied
...he server account, but every parent directory of the target directory must allow the server account to navigate into it; I think this would be +x to the permissions.
– Erhannis
Aug 27 '13 at 7:57
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Python glob multiple filetypes
Is there a better way to use glob.glob in python to get a list of multiple file types such as .txt, .mdown, and .markdown? Right now I have something like this:
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淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...
...的过程中，我们所说的拆分就出现V2.2和V3.0之 间。在V2.2版 本中，淘宝几乎所有的逻辑都放在(Denali)系统中，这样导致的问题就是系统扩展和修改非常麻烦，并且更加致命的是随着淘宝业务量的增加，如果按照V2.2的架构已经没有...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...言，我更喜欢能够快速上手的东西。
对于日志管理，老版本的Linux缺省使用Syslog，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anythin...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...言，我更喜欢能够快速上手的东西。
对于日志管理，老版本的Linux缺省使用Syslog，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anythin...