Dynamic Documents And Word Clouds - Revision history

Carver: /* What we are going to do */

2016-11-15T04:37:59Z

‎What we are going to do

Carver: /* Preliminaries (in class) */

2016-11-15T04:34:07Z

‎Preliminaries (in class)

Carver: /* Preliminaries (in class) */

2016-11-15T04:33:24Z

‎Preliminaries (in class)

Carver: /* Preliminaries (in class) */

2016-11-15T04:30:56Z

‎Preliminaries (in class)

Carver: /* Preliminaries (in class) */

2016-11-15T04:27:52Z

‎Preliminaries (in class)

Carver: /* Preliminaries (before class) */

2016-11-15T04:13:56Z

‎Preliminaries (before class)

Carver: /* What we are going to do */

2016-11-15T04:12:57Z

‎What we are going to do

Carver: /* What we are going to do */

2016-11-15T04:12:13Z

‎What we are going to do

Carver: /* Preliminaries (in class) */

2016-11-15T04:09:20Z

‎Preliminaries (in class)

Carver: /* Preliminaries (in class) */

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‎Preliminaries (in class)

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 == What we are going to do ==
-I am going to give you a dynamic document that searches twitter and draws a word cloud.  You will make minor modifications to this file and rerun it.  Maybe you will change the word or words we are looking for, or maybe you will change the search criteria---the date range or the geographic location.  You will change the text of the document.  This should be very easy once you have set up the software.  The steps below are for setting up the software.  There are a lot of steps but they are all pretty easy.
+I am going to give you a dynamic document that searches twitter and draws a word cloud, then displays it as part of a document that was actually my lesson plan for part of last class.  You will make minor modifications to this file and rerun it.  Maybe you will change the word or words we are looking for, or maybe you will change the search criteria---the date range or the geographic location.  You will change the text of the document.  This should be very easy once you have set up the software.  The steps below are for setting up the software.  There are a lot of steps but they are all pretty easy.
 == Preliminaries (before class) ==

← Older revision		Revision as of 04:34, 15 November 2016
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	* Most browsers will allow you to print the file to a PDF or to a printer. Do that.		* Most browsers will allow you to print the file to a PDF or to a printer. Do that.

−	* The next step is to change the dynamic document, and press knit again (you don't need to save because "knit" also saves). We will work with ~~that~~ Thursday, or Wednesday if there is time.	+	* The next step is to change the dynamic document, and press knit again (you don't need to save because "knit" also saves). We will work with this next step on Thursday, or Wednesday if there is time.

← Older revision		Revision as of 04:33, 15 November 2016
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	* Most browsers will allow you to print the file to a PDF or to a printer. Do that.		* Most browsers will allow you to print the file to a PDF or to a printer. Do that.

−	* The next step is to change the dynamic document, and press knit again (you don't need to save because "knit" also saves. We will work with that Thursday, or Wednesday if there is time.	+	* The next step is to change the dynamic document, and press knit again (you don't need to save because "knit" also saves). We will work with that Thursday, or Wednesday if there is time.

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 * One more thing.  You need an image from the web.  Download one from images.google.com and name it compassion.jpeg, or use this one at this link: [[Media:compassion.jpeg|compassion.jpeg]].  Make sure you save (or rename) it as "compassion.jpeg" with a lower case 'c' (The MediaWiki I use for my website doesn't like file names that start with a lower case letter).
-* Put all files downloaded and created in the same directory: Downloads is fine, but you might want a new directory to keep them separate from other files.
+* Put all files downloaded and created in the same directory: The 'Downloads' directory is fine, but you might want a new directory to keep them separate from other files.
 * Start R Studio, if you haven't already.

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 * Load the dynamic document: WordClouds.Rmd.  File --> Open File
-* Press the knit button (ball of yarn)
+* Press the knit button (ball of yarn).
-* That should bring up a window with the document.
+* This will not work yet (error) because we need to install certain packages and possibly other software.  At the top of the lower left pane on R studio there is tab called packages.  If you click on it you will get a button called Install.  Click the button type in the name of the package you need. I use the following packages to draw the word cloud: twitteR, tm, wordcloud, and RColorBrewer.  However installing the packages may give you additional errors with messages saying you need to install other packages or other software.  Try that if you want, (inspect the messages), but this may require my help.  Note package names are case sensitive:  yes, you must type "twitteR".
-* At the top you can select "Open in Browser," which should open the document in your default browser---mine is Firefox but it might be different for everyone.
+* Once all the needed software is installed the "knit" button should bring up a window with the document rendered and displayed.  Note, the code may need to be tweaked for different machines (Mac, Windows, Linux).  I use Linux. I will almost certainly need to help you with that, but the approach is to ask Google.
 * Most browsers will allow you to print the file to a PDF or to a printer.  Do that.
 * The next step is to change the dynamic document, and press knit again (you don't need to save because "knit" also saves.  We will work with that Thursday, or Wednesday if there is time.

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 * Now download and install "R studio."  Use the free desktop version.
-* Make sure R studio opens.
+* Make sure R studio opens.  R studio will access R.
 == Preliminaries (in class) ==

← Older revision		Revision as of 04:09, 15 November 2016
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	* Most browsers will allow you to print the file to a PDF or to a printer. Do that.		* Most browsers will allow you to print the file to a PDF or to a printer. Do that.

−	* The next step is to change the dynamic document, and press knit again (you don't need to save because "knit" also saves. We will work with that Thursday or Wednesday if there is time.	+	* The next step is to change the dynamic document, and press knit again (you don't need to save because "knit" also saves. We will work with that Thursday, or Wednesday if there is time.

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 * You need from this page your "Consumer Key," "Consumer Secret", "Access Token", and "Access Token Secret."  You may have to tell twitter to generate or regenerate these keys.  They will be strings of numbers and letters like "123kewarfadf03242324lkmaerlafdsafsd".
-* Copy and paste these keys into the my_access.R file in the places indicated.  You can use R studio to edit the file.  To open my_access.R choose File --> Open File,  Replace all text between quotation marks, but don't erase the quotation marks.  Then save the file.
+* Copy and paste these keys into the my_access.R file in the places indicated.  Use R studio (or another text editor) to edit my_access.R.  To open my_access.R choose File --> Open File,  Replace all text between quotation marks with the "passwords" provided by twitter (as indicated in the code), but don't erase the quotation marks.  Then save the file.
-* One more thing.  You need an image from the web.  Download one from images.google.com and name it compassion.jpeg, or use this one: [[Media:compassion.jpeg|compassion.jpeg]].  Make sure you save (or rename) it as "compassion.jpeg" with a lower case 'c' (The MediaWiki I use for my website doesn't like file names that start with a lower case letter).
+* One more thing.  You need an image from the web.  Download one from images.google.com and name it compassion.jpeg, or use this one at this link: [[Media:compassion.jpeg|compassion.jpeg]].  Make sure you save (or rename) it as "compassion.jpeg" with a lower case 'c' (The MediaWiki I use for my website doesn't like file names that start with a lower case letter).
 * Put all files downloaded and created in the same directory: Downloads is fine, but you might want a new directory to keep them separate from other files.
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 * That should bring up a window with the document.
-* At the top you can put "Open in Browser," which should open the document in your default browser---might be different for everyone.
+* At the top you can select "Open in Browser," which should open the document in your default browser---mine is Firefox but it might be different for everyone.
-* Most browsers will allow you to print the file to a PDF or to a printer.
+* Most browsers will allow you to print the file to a PDF or to a printer.  Do that.