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+#+TITLE:  Doing a simple calculation on your own
+#+AUTHOR: Jessica Dagostini
+#+DATE:   March 24th, 2020
+#+LANGUAGE: en
+# #+PROPERTY: header-args :eval never-export
+
+#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="http://www.pirilampo.org/styles/readtheorg/css/htmlize.css"/>
+#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="http://www.pirilampo.org/styles/readtheorg/css/readtheorg.css"/>
+#+HTML_HEAD: <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
+#+HTML_HEAD: <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
+#+HTML_HEAD: <script type="text/javascript" src="http://www.pirilampo.org/styles/lib/js/jquery.stickytableheaders.js"></script>
+#+HTML_HEAD: <script type="text/javascript" src="http://www.pirilampo.org/styles/readtheorg/js/readtheorg.js"></script>
+
+* Working with numbers
+ Creating df
+ #+begin_src R :results output :session *R* :exports both
+ df <- c(14.0, 7.6, 11.2, 12.8, 12.5, 9.9, 14.9, 9.4, 16.9, 10.2, 14.9,
+ 18.1, 7.3, 9.8, 10.9,12.2, 9.9, 2.9, 2.8, 15.4, 15.7, 9.7, 13.1,
+ 13.2, 12.3, 11.7, 16.0, 12.4, 17.9, 12.2, 16.2, 18.7, 8.9, 11.9,
+ 12.1, 14.6, 12.1, 4.7, 3.9, 16.9, 16.8, 11.3, 14.4, 15.7, 14.0, 13.6,
+ 18.0, 13.6, 19.9, 13.7, 17.0, 20.5, 9.9, 12.5, 13.2, 16.1, 13.5, 6.3,
+ 6.4, 17.6, 19.1, 12.8, 15.5, 16.3, 15.2, 14.6, 19.1, 14.4, 21.4,
+ 15.1, 19.6, 21.7, 11.3, 15.0, 14.3, 16.8, 14.0, 6.8, 8.2, 19.9, 20.4,
+ 14.6, 16.4, 18.7, 16.8, 15.8, 20.4, 15.8, 22.4, 16.2, 20.3, 23.4,
+ 12.1, 15.5, 15.4, 18.4, 15.7, 10.2, 8.9, 21.0) 
+ #+end_src
+
+ #+RESULTS:
+
+Summary
+#+begin_src R :results output :session *R* :exports both
+print(summary(df))
+#+end_src
+
+#+RESULTS:
+:    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
+:    2.80   11.85   14.50   14.11   16.80   23.40
+
+Variance and Standard deviation
+#+begin_src R :results output :session *R* :exports both
+var = var(df)
+print(var)
+std = sqrt(var)
+print(std)
+#+end_src
+
+#+RESULTS:
+: [1] 18.78437
+: [1] 4.334094
+
+Generating dataset plot
+#+begin_src R :results output graphics :file (org-babel-temp-file "figure" ".png") :exports both :width 600 :height 400 :session *R* 
+plot(df, type = "l", col="blue")
+#+end_src
+
+#+RESULTS:
+[[file:/tmp/babel-2274i6j/figure22742zC.png]]
+
+Ploting histogram
+#+begin_src R :results output graphics :file (org-babel-temp-file "figure" ".png") :exports both :width 600 :height 400 :session *R* 
+hist(df, col="blue")
+#+end_src
+
+#+RESULTS:
+[[file:/tmp/babel-2274i6j/figure2274QIP.png]]