learn rstudio

Origin R installation is complete, can't restrain, must write something to play.Then by the way during the use of the process, see what pits can be trampled, by the way record. Real Exercise The first step, of course, is to enter the Rstudio, login process problems can be seen in a blog post. The second step is to import the data. But when importing data, an error. Of course, just install sure there are all kinds of packages and environment not, so n

+shift+l Command+shift+l Check Package Ctrl+shift+e Command+shift+e Plots Description Windows Linux Mac Previous plot Ctrl+shift+pageup Command+shift+pageup Next plot Ctrl+shift+pagedown Command+shift+pagedown Show Manipulator Ctrl+shift+m Command+shift+m Git/svn Description Windows Linux M

operator Ctrl+shift+m Command+shift+m 　 　 　 Git/svn Description Windows Linux Mac Compare Current source files Ctrl+shift+d Command+shift+d Submit Changes Ctrl+shift+m Command+shift+m Scroll to see the different Ctrl+up/down Ctrl+up/down Stage/unstage (Git) Spacebar Spacebar Stage/unstage and Move next (Git) E

I. Using Rstudio to connect MySQL database We often store a large amount of data in a database such as MySQL, so as to facilitate our data extraction and operation, and many times when we use R for data analysis, we usually want R to directly and MySQL database connection, so that we directly to the large-scale data processing. Of course, the data stored in MySQL is structured. Some friends will encounter some problems when using R to connect database

+shift+l Command+shift+l Check Package Ctrl+shift+e Command+shift+e Plots Description Windows Linux Mac Previous plot Ctrl+shift+pageup Command+shift+pageup Next plot Ctrl+shift+pagedown Command+shift+pagedown Show Manipulator Ctrl+shift+m Command+shift+m Git/svn Description Windows Linux M

programming environment. Rstudio can also opt for Eclipse-based architect (Http://www.openanalytics.eu/architect). If you need to install a graphical user interface (GUI), select either R-commander (http://www.rcommander.com/) or Deducer (http://www.deducer.org/pmwiki/index.php?n =main.windowsinstallation).Homework after class Install R and Rstudio. Install the RCMDR, Rattle, and deducer packa

Reply content:Basic syntax Coding techniques, coding specifications Various functions Various PHP modules Learn a CMS or two-time development Learn about Pdo,ado, data-driven layers, and learn MySQL on the go Error mechanism Object oriented Use a framework to help develop Magic method Design Patterns Reflection Write all kinds of tools, drivers. Write a small fra

Origin Connecting to hive seems to be unable to find the correct configuration and download on the network.Therefore only according to the official. Analysis First install the package directly, compile the rhive, the hint can not be found. But

reading is not enough, actual combat is the most important, so-called learning, such as in the "Python core programming 2" after class exercises/learning some small script/etc., here are several sites for the Python script instance study: (1). Code share list--Python (2). Python Code Library (3). https:// searchcode.com/ (4). GitHub best choice, more search some related projects, look at someone else's code, copy the wheel!! 4. Advanced entryThe Python advanced section of learning can ref

C ++ experts learn advice and learn with an open mind ~~ [Reprinted], advice and learn modestly 1. Take C ++ as a new language learning (it has nothing to do with C! True .); 2. Read Thinking In C ++ instead of C ++. 3. read "The C ++ Programming Language" and "Inside The C ++ Object Model". Do not read them because they are difficult and we are beginners; 4. Do

PHP Learning Notes (a) easy to learn php,php learn notes Target planning: With the first lesson, we can learn about the PHP environment. 1. Understanding of the environment: 2. Access method: 3. Modify the code and view it. 4. Use of variables 5. Code indentation to have a hierarchical relationship, and the best between the code to keep blank lines 6. Variable N

Version information:RStudio-0.99.902R 3.2.2Install.packages (' caret ', dep = TRUE)The error message is as follows:Load the required thread bundle: latticeLoad the required thread bundle: Ggplot2Error: ' Namespace:stats ' has no Exit ' Sigma '

Problem Recurrence:When fetching data through a URL, the content found in the console is garbled and English is not affected. This is the problem even if the function shows that decoding through the utf-8 is done. This is because R is interpreted in

1. Excluding cases with missing values (rows) Algae[!complete.case (algae),]% find all cases with missing values in the algae data set There are two kinds of culling: one is to remove all the cases with missing values, and the other is to eliminate

Php Chinese network (www.php.cn) provides the most comprehensive basic tutorial on programming technology, introducing HTML, CSS, Javascript, Python, Java, Ruby, C, PHP, basic knowledge of MySQL and other programming languages. At the same time, this site also provides a large number of online instances, through which you can better learn programming... Reply content: Basic syntax Coding skills and coding specifications Various functions Various PHP m

0 reply content: basic syntax Coding skills and coding specifications Various functions Various PHP modules Learning a cms or secondary development Learn about PDO, ADO, data driver layer, and mysql Error Reporting Mechanism Object-oriented Use a framework to help developers Magic Design Mode Reflection Write tools and drivers. Write a small framework by yourself (to be honest, you don't have so much energy to write it. You need to understand a lot of

ObjectiveCommon problemsSchool curriculum design is not perfect, involving a wide range of what is not in-depth.Teachers lack practical work experience, for example, I often see teachers often teach students to do math problems such as small programs, but in the actual work, we do not play this.In my opinion, to learn a programming language, there is no need to limit the classroom, on the one hand is slow, on the other hand, if you want to

Learn how to use Mantle in 3 minutes !, Learn mantle in 3 minutes Recently, it was my turn to explain Mantle at the iOS technology sharing meeting of the company's mobile internet business department. So I went to the Internet to search for materials. Finally, based on the articles in the next three links, I read them in order and summarized them, it took three minutes to share with you what this Mantle was

technology trend of * production systems, so as to remain unchanged. "Inside Ole 2" *** tips **: 1) Delphi/BCB/vB can quickly build interfaces, but it is not a good platform to really learn and understand the system, however, if you have time to read the source code of VCL, you can also learn a lot from how Borland encapsulates the system. 2) Learning ASM has great benefits for understanding C ++. Soft-ice

. PracticeIn the course of learning, reading books is not enough, and practice is the most important. The so-called learning and application, such as exercises/learning some small scripts/in the course of "Python core programming 2, here are several sites for learning Python script instances: (1). Code sharing list-Python (2). python code library Https://searchcode.com/ (4). the best choice for github is to search more related projects, check people's code, and copy the wheel !! 4. Advanced