Tag：numerical value
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Time：2021-6-10
Link to the original text: http://tecdat.cn/?p=6761 In logistic regression, we use the binary dependent variable y_ I regress to covariate X_ I go up. The following code uses metropolis sampling to explore beta_ 1 and beta_ 2 to covariate Xi. Define exit and fractional logarithm link function Logit < – function (x) {log (x / […]
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Time：2021-6-9
View the installed GCC version of the system ls -l /usr/bin/gcc* [email protected]:/home# ls -l /usr/bin/gcc* lrwxrwxrwx 1 root root 21 Jan 16 22:09 /usr/bin/gcc -> /etc/alternatives/gcc -rwxr-xr-x 1 root root 255080 Mar 20 2014 /usr/bin/gcc-4.4 -rwxr-xr-x 1 root root 915736 Oct 4 19:23 /usr/bin/gcc-5 lrwxrwxrwx 1 root root 8 Feb 11 2016 /usr/bin/gcc-ar -> gcc-ar-5 […]
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Time：2021-6-7
Command introduction The traceroute command is used to display the path information between packets and hosts. The traceroute command takes advantage of the “lifetime” field of the IP protocol and attempts to raise ICMP time by the path from each gateway to a host_ Exceled response. [[email protected] ~]# traceroute -bash: traceroute: command not found [[email protected] ~]# yum install traceroute -y Grammatical format traceroute [-46dFITUnreAV] [-f first_ttl] [-g gate,…] [-i device] [-m max_ttl] [-p port] [-s src_addr] [-q nqueries] [-N squeries] [-t tos] [-l flow_label] [-w waittime] [-z sendwait] [-UL] [-D] [-P proto] [–sport=port] [-M method] […]
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Time：2021-6-5
Link to the original text:http://tecdat.cn/?p=21467 objective Data on house prices may reflect changes in China in recent years: People get more resources (salaries) and expect better houses populous One child policy: how to affect the geometric structure of the house? More bedrooms, more space My core idea is to forecast house prices. However, I’m not […]
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Time：2021-6-1
The box model specifies the values of width and height, padding of inner margin, border of border and margin of outer margin. The blank inside the border is padding, and the blank outside the border is margin. As shown below, the width of the box model element box = the width of the content area […]
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Time：2021-5-11
Topic content Roman numerals contain the following seven characters: I， V， X， L，C，D and M。 character numerical value I 1 V 5 X 10 L 50 C 100 D 500 M 1000 For example, the Roman numeral 2 is written as II ， That is, two parallel ones. […]
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Time：2021-4-20
Recently, I saw some code and found that it would be written like thisVector3.Lerp(x, y, Time.deltaTime), delta time is the time from the last call, it is not [ zero , one ] So what does this interpolation mean? In fact, this is a linear interpolation of deceleration. Let me give a very simple example. […]
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Time：2021-4-20
Link to the original text:http://tecdat.cn/?p=6761 In logistic regression, we use the binary dependent variable y_ I regress to covariate X_ I go up. The following code uses metropolis sampling to explore beta_ 1 and beta_ 2 to covariate Xi. Define exit and fractional logarithm link function logit <- function ( x ){ log ( x […]
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Time：2021-4-16
1. Don’t use string to store date I remember doing this when I was in University, and now many novices who don’t know much about databases do the same. It can be seen that this method of storing dates has some advantages, that is, it is simple and straightforward, and easy to use. However, this […]
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Time：2021-4-14
The students who came to see this article must have been shocked by the recent 3D scene effects, holding “how to do this TM!” Let’s learn from webgl.OK, you already have experience with threejs or other 3D scene development frameworks, but you don’t know how to write webgl native. This series will start with the […]
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Time：2021-4-14
Data analysis and processing library import pandas as pd df=pd.read_csv(“./pandas/data/titanic.csv”) df.head (N) Read the first n rows of data df.head(6) df.info () get a brief summary of the dataframe df.info() <class ‘pandas.core.frame.DataFrame’> RangeIndex: 891 entries, 0 to 890 Data columns (total 12 columns): # Column Non-Null Count Dtype — —— ————– —– 0 PassengerId 891 […]
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Time：2021-4-6
When an applet defines a variable, it does not need to specify the data type, but infers the type according to the value. The inference result is one of eight data types: number, string, Boolean, object, array, function and regexp, date. Those who have programming experience should know that in many programming languages, primitive data […]
