statistical analysis book

Log statistical analysis-Shell/Goaccess performs simple statistical analysis on Nginx or other logs. Shell performs statistical analysis on a column to analyze StatuCode, URL, etc. # cataccess. log | awk amp; #39; {print $9} amp

some abnormal data), will be cleaned to the data redirected to the new HDFs directory, then we can follow the indicators to statistical results, statistical way, here I also listed the work used in 2 ways, One is to write an Mr Task for statistics, the other is to use hive to count, and finally to use Sqoop to export the results of the statistics to MySQL or Oracle to save (clearly stored in hbase). This i

tableFrequent additions and deletions often lead to slow access. View the physical size and partition of a table: [SQL] Replace emp with your table name,The table name must be capitalized in single quotes..Generally, 300 million data is about MB. 300 m a day, about 10g a month. Partitions can be performed on a monthly basis, with 12 tables per month per year. Each partition table is a subpartition every day. Awr statistical

The first blog post, writing Limited, brain supplement points.The above-mentioned statistical descriptions (mean, variance, standard deviation, median) I will not talk about, first from the distribution. In the distribution of this piece, the most basic is also the most important is the central limit theorem, and from the infinite population of a large number of repeated samples of the same capacity, the value of each sample summed to form a new distr

Distribution When N of the sample distribution is large, the extreme distribution is used as an approximation of the sample distribution. This extreme distribution is called a progressive distribution.Approximate distribution obtained by Random Simulation Distribution of observed values satisfied by repeated experiments.Several Important Distributions derived from normal distribution, Chi-square distribution, tdistribution, and F distribution It plays an important role in variance

Is the website statistical analysis system piwik (similar to googleanalytics) useful? I configured piwik, PHP + MySQL + Apache on my own server (the company's. However, I found that only when I deployed piwik on my server to access the target website will statistics appear, such as the website statistics analysis system piwik (similar to google analytics ), used?

At home and abroad, these mobile application data statistical analysis platform provides free application statistic analysis and mobile promotion effect analysis for mobile developers. The API is available on the phone for app developer code calls. The server provides online services to app operators for

/(SIGMA*NP.SQRT (2*NP.PI)) *np.exp (-(BINS-MU) **2/(2*sigma**2)), Linewidth=2,color= " r " ) plt.show () # #显示鸢尾花花瓣长度的正态分布图 Import Matplotlib.pyplot as Pltmu=Np.median (data_length) Sigma=np.std (data_length) num= Data_length.shaperand_data=np.random.normal (mu,sigma,num)print(rand_data.shape,type (Rand_data)) count,bins,ignored=plt.hist (rand_data,30,normed=True) plt.plot (bins,1/(SIGMA*NP.SQRT (2*NP.PI)) * Np.exp (-(BINS-MU) **2/(2*sigma**2)), linewidth=2,color='r') plt.show () # the curve

In general, DB has a very complete monitoring, then if the monitoring is not perfect, then in a certain period of time the performance problem, then we can also analyze binlog to try to find the problem. The following command, in fact, is a common command combination.Mysqlbinlog--no-defaults--base64-output=decode-rows-vv Mysql-bin. 009260 awk ' /update| Insert| Delete/{gsub ("# # #", "" "), Gsub (" Insert.*into "," INSERT "), Gsub (" Delete.*from "," DELETE "), count[$1" "$2]++}end{for (i In cou

SunFlower mobile analytics enables full application escort !, Sunflower statistical analysisThe rapid development of mobile Internet has led to the birth of many apps. At the same time, many apps have died of operational decision-making mistakes due to lack of real-time data. In order to allow developers to control the development of applications in real time, there have been companies dedicated to providing application

Absrtact: The classical statistical analysis methods are mainly regression analysis, logistic regression, decision tree, support vector machine, cluster analysis, correlation analysis, principal component analysis, correspondence

Recently in the data analysis of a traffic flow, the demand is for a huge amount of urban traffic data, need to use MapReduce cleaning after importing into hbase storage, and then using the Hive External table associated with hbase, hbase data query, statistical analysis, Save the analysis results in a hive table, and

central measure of the mean value. A workaround for the mean is the truncated mean, which removes the maximum and minimum number of values and averages the remaining numbers.Memory number Mo median Md mean μ intercept mean TMWhat are the links between these center trend metricsThe answer depends on the degree of bias (skewness) of the dataThe important thing to remember is that we cannot confine ourselves to only one central trend metric. For some data sets, it is necessary to use a variety of

Log statistical analysis-Shell/Goaccess performs simple statistical analysis on Nginx or other logs. Shell performs statistical analysis on a column to analyze Statu Code, URL, etc. # cat access. log | awk '{print $9}' | sort | un

# read multivariate statistical analysis data to RWine# Draw Multivariate Statistics# Matrix Scatter plot# A common approach is to use scatter plots to produce multivariate statistics that show a scatter plot between all variable 22.# We can do this using the "Scatterplotmatrix ()" function in the "car" package in R.Library (CAR)Scatterplotmatrix (Wine[2:6])# Scatter plot of group callout data pointsPlot (W

Statistical analysis-mysql cursor bitsCN.com Statistical analysis-mysql cursor The statistical analysis module of the project uses stored procedures to collect statistics on data to meet the needs of users to view report data. I

This article describes one of the application of the class name or method debug source, see:Java Learning -025-class name or method name application-Debug source codeThis paper mainly describes the two statistical analysis of the application of the class name or method, and obtains the call relationship of the method by inserting piles in each method (calling the pile method). By invoking the relationship,

For details, visit the software company website www.ecollab.com.cn. During the development of enterprise MIS, data structure changes often occur due to business changes, while custom development systems sometimes cannot adapt to changes in data structures, enterprises are passive in the Process of constantly upgrading their systems. In order to improve the adaptability and flexibility of enterprises and enhance the flexibility of enterprise information systems, enterprises should be able to m

Network traffic is an important indicator for network administrators. Observe the traffic to learn the newest symptoms of the network. Here is the Mrtg tutorial for installing the network traffic statistical analysis tool MRTG. Mrtg tutorial By SeeLinux Installing network traffic statistical analysis tool MRTG in FreeB

goes online.Details click http://bbs.umeng.com/thread-5495-1-1.html 12. Why are there fewer (more) new users in the channels recorded by umeng than in the market )?Due to different statistical principles, the channel market usually collects downloads, which can only be counted after the user network starts. Therefore, the number of new users added to the channel is usually less than the number of downloads provided by the channel.However, due to the