updated l3

bihealth · Sep 18, 2024 · 9185989 · 9185989
1 parent f3af60c
commit 9185989
Show file tree

Hide file tree

Showing 2 changed files with 21 additions and 7 deletions.
diff --git a/Lectures/lecture_03.html b/Lectures/lecture_03.html
@@ -3497,6 +3497,14 @@ <h1 data-config-title><!-- populated from slide_config.json --></h1>
 
 <p>(we use the back ticks because the column name contains a space)</p>
 
+</article></slide><slide class=""><hgroup><h2>table() for constructing contingency tables</h2></hgroup><article  id="table-for-constructing-contingency-tables" class="smaller ">
+
+<pre class = 'prettyprint lang-r'>table(myiris$Species)</pre>
+
+<pre >## 
+##     setosa     Setosa versicolor Versicolor  virginica  Virginica 
+##         45          5         42          8         46          4</pre>
+
 </article></slide><slide class=""><hgroup><h2>Diagnosing problems</h2></hgroup><article  id="diagnosing-problems-4" class="smaller ">
 
 <ul>
@@ -3810,9 +3818,9 @@ <h1 data-config-title><!-- populated from slide_config.json --></h1>
 </article></slide><slide class=""><hgroup><h2>Wide and Long format (demonstration)</h2></hgroup><article  id="wide-and-long-format-demonstration" class="smaller ">
 
 <ul>
-<li><a href='https://youtu.be/NO1gaeJ7wtA' title=''>https://youtu.be/NO1gaeJ7wtA</a></li>
-<li><a href='https://youtu.be/v5Y_yrnkWIU' title=''>https://youtu.be/v5Y_yrnkWIU</a></li>
-<li><a href='https://youtu.be/jN0CI62WKs8' title=''>https://youtu.be/jN0CI62WKs8</a></li>
+<li><a href='https://youtu.be/NO1gaeJ7wtA' title=''>https://youtu.be/NO1gaeJ7wtA</a> (introduction, 9 minutes)</li>
+<li><a href='https://youtu.be/v5Y_yrnkWIU' title=''>https://youtu.be/v5Y_yrnkWIU</a> (wide to long, 6 minutes)</li>
+<li><a href='https://youtu.be/jN0CI62WKs8' title=''>https://youtu.be/jN0CI62WKs8</a> (long to wide, 4 minutes)</li>
 </ul>
 
 </article></slide><slide class=""><hgroup><h2>Wide and Long format</h2></hgroup><article  id="wide-and-long-format" class="smaller ">

diff --git a/Lectures/lecture_03.rmd b/Lectures/lecture_03.rmd
@@ -208,12 +208,18 @@ summary(myiris$`Sepal Length`)
 
 (we use the back ticks because the column name contains a space)
 
+## table() for constructing contingency tables
+
+
+```{r eval=TRUE,results="markdown"}
+table(myiris$Species)
+```
+
 ## Diagnosing problems
 
  * The colorDF package provides a function called `summary_colorDF` which
    can be used to diagnose problems with different flavors of data frames:
 
-
 ```{r eval=TRUE,results="markdown",R.options=list(width=100)}
 library(colorDF)
 summary_colorDF(myiris)
@@ -517,9 +523,9 @@ removes existing row names on data frames.
 
 ## Wide and Long format (demonstration)
 
- * https://youtu.be/NO1gaeJ7wtA
- * https://youtu.be/v5Y_yrnkWIU
- * https://youtu.be/jN0CI62WKs8
+ * https://youtu.be/NO1gaeJ7wtA (introduction, 9 minutes)
+ * https://youtu.be/v5Y_yrnkWIU (wide to long, 6 minutes)
+ * https://youtu.be/jN0CI62WKs8 (long to wide, 4 minutes)
 
 
 ## Wide and Long format