R Data Analysis Solution: Generate Reports of Data Analysis with R Markdown & knitR packtpub.com

generate report This is a topic that many people are looking for. star-trek-voyager.net is a channel providing useful information about learning, life, digital marketing and online courses …. it will help you have an overview and solid multi-faceted knowledge . Today, star-trek-voyager.net would like to introduce to you R Data Analysis Solution: Generate Reports of Data Analysis with R Markdown & knitR packtpub.com. Following along are instructions in the video below:

“Viewers welcome to the first section of the course generating reports of your data. Analysis analysis and knitter in this section will create professional webpages that showcase analysis and allow to actively experiment with the underlying data. Then we ll generate pdf reports of our analysis. Our report can include embedded.

Our commands for the system to execute and film live data and charts so that when the data changes you can regenerate the report with a single button click lastly will generate pdf presentations of our analysis now we move on to the first video of this section. That deals with generating reports of your data. Analysis with our markdown editor in this video. We ll generate reports using our markdown and knitter our markdown provides a simple syntax to define analysis.

Reports based on such a report definition knitter can generate reports in html pdf microsoft word format and several presentation formats our markdown documents contain regular text embedded our code chunks and inline our code knitter passes. The markdown document and inserts. The results of executing br code. At specified locations within regular text to produce a well formatted report.

Our markdown extends. The regular markdown format to enable us to embed our code. If you ve not already downloaded the files for this section. Do it now and place the auto mpg csv and little r md files.

In your our working directory firstly install the latest version of the knitter and markdown packages. One by one you to generate reports using our mark. A knitter. We open the our studio and create a new our markdown document by selecting the menu option and navigating to file go to new file and select our markdown enter the title as introduction leave the other defaults as they are and click on okay this generates a simple are markdown document that we can edit to suit our needs the sample document resembles as you can see on this window.

With this step. We create a new our markdown document. A new document includes a default metadata section between the lines..


Containing three dashes. This metadata. Section. Includes the title and output sections.

And can optionally also specify the author and date. Let s take a quick look at the document. You do not need to understand everything in it. In this step.

We re just trying to get an overview now we generate an html document based on the markdown file. Depending on the width of your editing. Pane. You may either see just a knitter icon.

A blue bale of wool and a knitting needle with a downward facing arrow or the icon and the text knit html beside it if you only see the icon click on the downward arrow beside the icon and select knit html if you see the text in addition to the icon just click on knit html to generate the html document. The menu that we use to generate html has options to control where our studio will render the report. We can indicate the design output format by selecting the appropriate menu option. However it is possible to run knitter within a standard our environment in our case.

The output specified in the markdown document determines. The format of the output document within the same file you can generate a pdf or word documents by invoking. The appropriate menu option to generate a word document you need to have microsoft word installed on your system and to generate a pdf you need to have the latex pdf generator pdf latex installed note that the output item in the metadata changes. According to the output format you choose from the menu now that you have an idea of the process use the menu option by navigating to file.

Then go to open file and select the knitted rmd file. Before proceeding further edit line 40 of the file and change root directory location to our working directory. For our convenience..


We showed the output incrementally. This step opens a pre created document that illustrates many of the important features of knitter here. The codes are explained in parts. The metadata section is between two lines each with just three hyphens as you can see here on running this part of the code.

You can view the output in the our studio console window. This part contains the metadata of the document. There are three output types word pdf and html the initial three hyphens indicate the start of the metadata section. Toc as yes causes the table of contents to be generated based on the headings in the document.

This is explained in detail in the next section. The final three hyphens end the metadata section. This is the introduction section of the our markdown document on executing. This command the output will look like this the three asterisks are aligned by itself cause.

A horizontal line to be output line starting with a single hash signify. A first level heading. And if toc as yes is set in the metadata. Its added in the table of contents lines starting with double hash signify second level headings text surrounded by a single asterisk displays.

A titanic and text surrounded by double asterisks display as bold text starting with less than http and ending with greater that is displayed as a url. This highlighted part in the our studio window is the html content of a document. You can view the output on the console window in the html content section of our sample document regular html coding can be embedded in an r markdown document knitter will only properly display the html if the output format is set in html. You must leave an empty line before starting.

The html code in this segment. We use the html table syntax to produce a table next. We embed the our code change the root directory path to our our working directory..


Where we ve stored the auto mpg csv and knitter the rmd files. We ve already changed the location on the fortieth line of the code. The output of the embed code can be viewed. Here.

Our code fragments or chunks begin on new lines. With three back quotes at the start these chunks end with a line containing. Just three back. Words.

The text of the our code segment starts with r followed by an optional name for the chunk. We can choose any unique name in this step. We set caches true and also set the home directory for knitter. The knitter options set here apply to the whole document thus cache is enabled for each our code chunk that applies this setting.

We set up display options for the current code chunk. If echo is set as false. Then the code chunk is not displayed in the document. Similarly message is false and warning is also false suppress any our messages and warnings in the document let s load the auto mpg data file using the read function we show a code chunk named load data to read a dot csv file into a variable this code chunk does not appear in the report.

Because we ve chosen echo equals false. The location of the file is taken from the directory that we set up in the earlier step also since we ve enabled cache. The file is not read each time the document is generated post that we plot the data file using the plot function the output of the plot command is appeared on the console window. Further we execute.

This command to plot the data with the format options here. You can observe the plotted output with format options. We create a code chunk called..


Plot data. The r code appears in the report. Because. The default value for echo.

Is true. If an hour code chunk produces any output nitta automatically includes that output in the generated report then we embed the code within a sentence by applying this command here s the output of the preceding command this step illustrate to embed our code in line initially. We enclose the r code between a set of single back quotes knitter substitutes. The output of the our command in place of the inline r code.

Thus in row auto returns. A number of autos and if included in the generated document let s learn more about the r markdown. Visit its website for a complete list of markdown syntax elements. This table shows the various display options in a cochin.

The next subtopic is using the render function in our studio document output can be generated using litter by clicking on the knit button you can also directly enter a command in the our command line. If you leave out the second argument then the output specification in the markdown document determines the output format here we use this command to create the output in pdf format and to create the output in all formats. Mentioned in the markdown document. We use this command final subtopic of this video is adding output.

Options these output options can be added. Mention the type of output documents are build number the section headings if the sections are not named then their incremental e numbered. Efig underscore width fig underscore height options are the default width and height in inches theme visuals theme pass null to use custom css css include file name in this video. We generated reports of our data analysis with our markdown and ” .


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