update lab

DS4PS · May 1, 2020 · 18763b0 · 18763b0
1 parent e32bb75
commit 18763b0
Show file tree

Hide file tree

Showing 2 changed files with 31 additions and 29 deletions.
diff --git a/labs/matching-lab.html b/labs/matching-lab.html
@@ -3096,11 +3096,11 @@ <h3>Q1:</h3>
 <tr class="even">
 <td align="center">fiction</td>
 <td align="center">0.58</td>
-<td align="center">0.58</td>
-<td align="center">0</td>
-<td align="center">1</td>
-<td align="center">-0.33</td>
-<td align="center">0.33</td>
+<td align="center">0.53</td>
+<td align="center">0.05</td>
+<td align="center">0.75232</td>
+<td align="center">-0.39</td>
+<td align="center">0.28</td>
 </tr>
 <tr class="odd">
 <td align="center">scifi</td>
@@ -3114,11 +3114,11 @@ <h3>Q1:</h3>
 <tr class="even">
 <td align="center">children</td>
 <td align="center">0</td>
-<td align="center">0.11</td>
-<td align="center">-0.11</td>
-<td align="center">0.16283</td>
-<td align="center">-0.05</td>
-<td align="center">0.26</td>
+<td align="center">0.16</td>
+<td align="center">-0.16</td>
+<td align="center">0.08276</td>
+<td align="center">-0.02</td>
+<td align="center">0.34</td>
 </tr>
 <tr class="odd">
 <td align="center">male</td>
@@ -3132,29 +3132,29 @@ <h3>Q1:</h3>
 <tr class="even">
 <td align="center">age</td>
 <td align="center">26.63</td>
-<td align="center">31.11</td>
-<td align="center">-4.48</td>
-<td align="center">0.00347</td>
-<td align="center">1.58</td>
-<td align="center">7.37</td>
+<td align="center">32.42</td>
+<td align="center">-5.79</td>
+<td align="center">0.01126</td>
+<td align="center">1.43</td>
+<td align="center">10.15</td>
 </tr>
 <tr class="odd">
 <td align="center">white</td>
 <td align="center">0.68</td>
-<td align="center">0.47</td>
-<td align="center">0.21</td>
-<td align="center">0.19877</td>
-<td align="center">-0.54</td>
-<td align="center">0.12</td>
+<td align="center">0.42</td>
+<td align="center">0.26</td>
+<td align="center">0.1084</td>
+<td align="center">-0.59</td>
+<td align="center">0.06</td>
 </tr>
 <tr class="even">
 <td align="center">black</td>
 <td align="center">0.05</td>
-<td align="center">0.42</td>
-<td align="center">-0.37</td>
-<td align="center">0.00794</td>
-<td align="center">0.11</td>
-<td align="center">0.63</td>
+<td align="center">0.47</td>
+<td align="center">-0.42</td>
+<td align="center">0.00317</td>
+<td align="center">0.16</td>
+<td align="center">0.69</td>
 </tr>
 <tr class="odd">
 <td align="center">asian</td>
@@ -3180,8 +3180,9 @@ <h3>Q1:</h3>
 <div id="q2-2" class="section level3">
 <h3>Q2</h3>
 <p>In the printout above of sample statistics it reports that 13 cases in the control group were unmatched at the end. The <strong>discard=</strong> argument allows he program to drop observations prior to matching. This is helpful when some cases fall outside of the region of common support.</p>
-<p>How does relaxing this contraint change the final sample size?</p>
-<p>Does it generate more or less balance than the defaul method reported in Q1? Is this consistent with Q1d in Part 2?</p>
+<p><strong>Q2a:</strong> How does relaxing this contraint change the final sample size?</p>
+<p><strong>Q2b:</strong> Does it generate more or less balance than the defaul method reported in Q1? Is this consistent with Q1d in Part 2?</p>
+<p><strong>Q2c:</strong> How is discarding cases without support similar to the simple nearest neighbors approach in Part 1? How much do the samples you identified with this approach and from Step 1 overlap?</p>
 <div class="sourceCode" id="cb14"><pre class="sourceCode r"><code class="sourceCode r"><a class="sourceLine" id="cb14-1" title="1">m.out &lt;-<span class="st"> </span><span class="kw">matchit</span>( books <span class="op">~</span><span class="st"> </span>movies <span class="op">+</span><span class="st"> </span>fiction <span class="op">+</span><span class="st"> </span>scifi <span class="op">+</span><span class="st"> </span>children <span class="op">+</span><span class="st"> </span></a>
 <a class="sourceLine" id="cb14-2" title="2"><span class="st">                  </span>male <span class="op">+</span><span class="st"> </span>age <span class="op">+</span><span class="st"> </span>white <span class="op">+</span><span class="st"> </span>black <span class="op">+</span><span class="st"> </span>asian, <span class="dt">data=</span>dat,</a>
 <a class="sourceLine" id="cb14-3" title="3">                  <span class="dt">discard=</span><span class="st">&quot;both&quot;</span> )</a>

diff --git a/labs/matching-lab.rmd b/labs/matching-lab.rmd
@@ -433,10 +433,11 @@ compare_means( df=d.matched  ) %>% pander()
 
 In the printout above of sample statistics it reports that 13 cases in the control group were unmatched at the end. The **discard=** argument allows he program to drop observations prior to matching. This is helpful when some cases fall outside of the region of common support. 
 
-How does relaxing this contraint change the final sample size? 
+**Q2a:** How does relaxing this contraint change the final sample size? 
 
-Does it generate more or less balance than the defaul method reported in Q1? Is this consistent with Q1d in Part 2? 
+**Q2b:** Does it generate more or less balance than the defaul method reported in Q1? Is this consistent with Q1d in Part 2? 
 
+**Q2c:** How is discarding cases without support similar to the simple nearest neighbors approach in Part 1? How much do the samples you identified with this approach and from Step 1 overlap? 
 
 
 ```{r, eval=F}