tests/testthat/test_linreg_s3.R
In quartermaine/lab4: A class for linear regression
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Making passing the tests slightly easier, no need to keep exact count of spaces." class="message" href="/STIMALiU/AdvRCourse/commit/b353a88bd4ea975d3991c9c59089cdd65152c6e8">Update test_linreg_s3.R</a>
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<div itemprop="text" class="blob-wrapper data type-r">
<table class="highlight tab-size js-file-line-container" data-tab-size="8">
<tr>
<td id="L1" class="blob-num js-line-number" data-line-number="1"></td>
<td id="LC1" class="blob-code blob-code-inner js-file-line">context(<span class="pl-s"><span class="pl-pds">"</span>linreg<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L2" class="blob-num js-line-number" data-line-number="2"></td>
<td id="LC2" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L3" class="blob-num js-line-number" data-line-number="3"></td>
<td id="LC3" class="blob-code blob-code-inner js-file-line">data(<span class="pl-s"><span class="pl-pds">"</span>iris<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L4" class="blob-num js-line-number" data-line-number="4"></td>
<td id="LC4" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L5" class="blob-num js-line-number" data-line-number="5"></td>
<td id="LC5" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>lenreg rejects errounous input<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L6" class="blob-num js-line-number" data-line-number="6"></td>
<td id="LC6" class="blob-code blob-code-inner js-file-line"> expect_error(linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepdsal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>))</td>
</tr>
<tr>
<td id="L7" class="blob-num js-line-number" data-line-number="7"></td>
<td id="LC7" class="blob-code blob-code-inner js-file-line"> expect_error(linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepdsal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">irfsfdis</span>))</td>
</tr>
<tr>
<td id="L8" class="blob-num js-line-number" data-line-number="8"></td>
<td id="LC8" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L9" class="blob-num js-line-number" data-line-number="9"></td>
<td id="LC9" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L10" class="blob-num js-line-number" data-line-number="10"></td>
<td id="LC10" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">#</span> linreg <- lm</span></td>
</tr>
<tr>
<td id="L11" class="blob-num js-line-number" data-line-number="11"></td>
<td id="LC11" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">#</span> </span></td>
</tr>
<tr>
<td id="L12" class="blob-num js-line-number" data-line-number="12"></td>
<td id="LC12" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L13" class="blob-num js-line-number" data-line-number="13"></td>
<td id="LC13" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>class is correct<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L14" class="blob-num js-line-number" data-line-number="14"></td>
<td id="LC14" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L15" class="blob-num js-line-number" data-line-number="15"></td>
<td id="LC15" class="blob-code blob-code-inner js-file-line"> </td>
</tr>
<tr>
<td id="L16" class="blob-num js-line-number" data-line-number="16"></td>
<td id="LC16" class="blob-code blob-code-inner js-file-line"> expect_s3_class(<span class="pl-smi">linreg_mod</span>, <span class="pl-s"><span class="pl-pds">"</span>linreg<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L17" class="blob-num js-line-number" data-line-number="17"></td>
<td id="LC17" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L18" class="blob-num js-line-number" data-line-number="18"></td>
<td id="LC18" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L19" class="blob-num js-line-number" data-line-number="19"></td>
<td id="LC19" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>print() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L20" class="blob-num js-line-number" data-line-number="20"></td>
<td id="LC20" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L21" class="blob-num js-line-number" data-line-number="21"></td>
<td id="LC21" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L22" class="blob-num js-line-number" data-line-number="22"></td>
<td id="LC22" class="blob-code blob-code-inner js-file-line"> expect_output(print(<span class="pl-smi">linreg_mod</span>),<span class="pl-s"><span class="pl-pds">"</span>linreg<span class="pl-cce">\\</span>(formula = Petal<span class="pl-cce">\\</span>.Length ~ Sepal<span class="pl-cce">\\</span>.Width <span class="pl-cce">\\</span>+ Sepal<span class="pl-cce">\\</span>.Length, data = iris<span class="pl-cce">\\</span>)<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L23" class="blob-num js-line-number" data-line-number="23"></td>
<td id="LC23" class="blob-code blob-code-inner js-file-line"> expect_output(print(<span class="pl-smi">linreg_mod</span>),<span class="pl-s"><span class="pl-pds">"</span>( )*<span class="pl-cce">\\</span>(Intercept<span class="pl-cce">\\</span>)( )*Sepal<span class="pl-cce">\\</span>.Width( )*Sepal<span class="pl-cce">\\</span>.Length<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L24" class="blob-num js-line-number" data-line-number="24"></td>
<td id="LC24" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L25" class="blob-num js-line-number" data-line-number="25"></td>
<td id="LC25" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L26" class="blob-num js-line-number" data-line-number="26"></td>
<td id="LC26" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>pred() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L27" class="blob-num js-line-number" data-line-number="27"></td>
<td id="LC27" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L28" class="blob-num js-line-number" data-line-number="28"></td>
<td id="LC28" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L29" class="blob-num js-line-number" data-line-number="29"></td>
<td id="LC29" class="blob-code blob-code-inner js-file-line"> expect_equal(round(unname(pred(<span class="pl-smi">linreg_mod</span>)[c(<span class="pl-c1">1</span>,<span class="pl-c1">5</span>,<span class="pl-c1">7</span>)]),<span class="pl-c1">2</span>), c(<span class="pl-c1">1.85</span>, <span class="pl-c1">1.53</span>, <span class="pl-c1">1.09</span>)) </td>
</tr>
<tr>
<td id="L30" class="blob-num js-line-number" data-line-number="30"></td>
<td id="LC30" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L31" class="blob-num js-line-number" data-line-number="31"></td>
<td id="LC31" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L32" class="blob-num js-line-number" data-line-number="32"></td>
<td id="LC32" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>resid() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L33" class="blob-num js-line-number" data-line-number="33"></td>
<td id="LC33" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L34" class="blob-num js-line-number" data-line-number="34"></td>
<td id="LC34" class="blob-code blob-code-inner js-file-line"> </td>
</tr>
<tr>
<td id="L35" class="blob-num js-line-number" data-line-number="35"></td>
<td id="LC35" class="blob-code blob-code-inner js-file-line"> expect_equal(round(unname(resid(<span class="pl-smi">linreg_mod</span>)[c(<span class="pl-c1">7</span>,<span class="pl-c1">13</span>,<span class="pl-c1">27</span>)]),<span class="pl-c1">2</span>), c(<span class="pl-c1">0.31</span>, <span class="pl-k">-</span><span class="pl-c1">0.58</span>, <span class="pl-k">-</span><span class="pl-c1">0.20</span>))</td>
</tr>
<tr>
<td id="L36" class="blob-num js-line-number" data-line-number="36"></td>
<td id="LC36" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L37" class="blob-num js-line-number" data-line-number="37"></td>
<td id="LC37" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L38" class="blob-num js-line-number" data-line-number="38"></td>
<td id="LC38" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>coef() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L39" class="blob-num js-line-number" data-line-number="39"></td>
<td id="LC39" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L40" class="blob-num js-line-number" data-line-number="40"></td>
<td id="LC40" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L41" class="blob-num js-line-number" data-line-number="41"></td>
<td id="LC41" class="blob-code blob-code-inner js-file-line"> expect_true(all(round(unname(coef(<span class="pl-smi">linreg_mod</span>)),<span class="pl-c1">2</span>) <span class="pl-k">%in%</span> c(<span class="pl-k">-</span><span class="pl-c1">2.52</span>, <span class="pl-k">-</span><span class="pl-c1">1.34</span>, <span class="pl-c1">1.78</span>)))</td>
</tr>
<tr>
<td id="L42" class="blob-num js-line-number" data-line-number="42"></td>
<td id="LC42" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L43" class="blob-num js-line-number" data-line-number="43"></td>
<td id="LC43" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L44" class="blob-num js-line-number" data-line-number="44"></td>
<td id="LC44" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L45" class="blob-num js-line-number" data-line-number="45"></td>
<td id="LC45" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>summary() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L46" class="blob-num js-line-number" data-line-number="46"></td>
<td id="LC46" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L47" class="blob-num js-line-number" data-line-number="47"></td>
<td id="LC47" class="blob-code blob-code-inner js-file-line"> </td>
</tr>
<tr>
<td id="L48" class="blob-num js-line-number" data-line-number="48"></td>
<td id="LC48" class="blob-code blob-code-inner js-file-line"> expect_output(summary(<span class="pl-smi">linreg_mod</span>), <span class="pl-s"><span class="pl-pds">"</span><span class="pl-cce">\\</span>(Intercept<span class="pl-cce">\\</span>)( )*-2.5[0-9]*( )*0.5[0-9]*( )*-4.4[0-9]*( )*.*( )*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-pds">"</span></span>) </td>
</tr>
<tr>
<td id="L49" class="blob-num js-line-number" data-line-number="49"></td>
<td id="LC49" class="blob-code blob-code-inner js-file-line"> expect_output(summary(<span class="pl-smi">linreg_mod</span>), <span class="pl-s"><span class="pl-pds">"</span>Sepal.Width( )*-1.3[0-9]*( )*0.1[0-9]*( )*-10.9[0-9]*( )*.*( )*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L50" class="blob-num js-line-number" data-line-number="50"></td>
<td id="LC50" class="blob-code blob-code-inner js-file-line"> expect_output(summary(<span class="pl-smi">linreg_mod</span>), <span class="pl-s"><span class="pl-pds">"</span>Sepal.Length( )*1.7[0-9]*( )*0.0[0-9]*( )*27.5[0-9]*( )*.*( )*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L51" class="blob-num js-line-number" data-line-number="51"></td>
<td id="LC51" class="blob-code blob-code-inner js-file-line"> expect_output(summary(<span class="pl-smi">linreg_mod</span>), <span class="pl-s"><span class="pl-pds">"</span>Residual standard error: 0.6[0-9]* on 147 degrees of freedom<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L52" class="blob-num js-line-number" data-line-number="52"></td>
<td id="LC52" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L53" class="blob-num js-line-number" data-line-number="53"></td>
<td id="LC53" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
</table>
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<tr>
<td id="L1" class="blob-num js-line-number" data-line-number="1"></td>
<td id="LC1" class="blob-code blob-code-inner js-file-line">context(<span class="pl-s"><span class="pl-pds">"</span>linreg<span class="pl-pds">"</span></span>)</td>
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<td id="L2" class="blob-num js-line-number" data-line-number="2"></td>
<td id="LC2" class="blob-code blob-code-inner js-file-line">
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<td id="L3" class="blob-num js-line-number" data-line-number="3"></td>
<td id="LC3" class="blob-code blob-code-inner js-file-line">data(<span class="pl-s"><span class="pl-pds">"</span>iris<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L4" class="blob-num js-line-number" data-line-number="4"></td>
<td id="LC4" class="blob-code blob-code-inner js-file-line">
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<td id="L5" class="blob-num js-line-number" data-line-number="5"></td>
<td id="LC5" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>lenreg rejects errounous input<span class="pl-pds">"</span></span>, {</td>
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<td id="L6" class="blob-num js-line-number" data-line-number="6"></td>
<td id="LC6" class="blob-code blob-code-inner js-file-line"> expect_error(linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepdsal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>))</td>
</tr>
<tr>
<td id="L7" class="blob-num js-line-number" data-line-number="7"></td>
<td id="LC7" class="blob-code blob-code-inner js-file-line"> expect_error(linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepdsal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">irfsfdis</span>))</td>
</tr>
<tr>
<td id="L8" class="blob-num js-line-number" data-line-number="8"></td>
<td id="LC8" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L9" class="blob-num js-line-number" data-line-number="9"></td>
<td id="LC9" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L10" class="blob-num js-line-number" data-line-number="10"></td>
<td id="LC10" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">#</span> linreg <- lm</span></td>
</tr>
<tr>
<td id="L11" class="blob-num js-line-number" data-line-number="11"></td>
<td id="LC11" class="blob-code blob-code-inner js-file-line"><span class="pl-c"><span class="pl-c">#</span> </span></td>
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<td id="L12" class="blob-num js-line-number" data-line-number="12"></td>
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</td>
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<td id="L13" class="blob-num js-line-number" data-line-number="13"></td>
<td id="LC13" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>class is correct<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L14" class="blob-num js-line-number" data-line-number="14"></td>
<td id="LC14" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L15" class="blob-num js-line-number" data-line-number="15"></td>
<td id="LC15" class="blob-code blob-code-inner js-file-line"> </td>
</tr>
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<td id="L16" class="blob-num js-line-number" data-line-number="16"></td>
<td id="LC16" class="blob-code blob-code-inner js-file-line"> expect_s3_class(<span class="pl-smi">linreg_mod</span>, <span class="pl-s"><span class="pl-pds">"</span>linreg<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L17" class="blob-num js-line-number" data-line-number="17"></td>
<td id="LC17" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L18" class="blob-num js-line-number" data-line-number="18"></td>
<td id="LC18" class="blob-code blob-code-inner js-file-line">
</td>
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<td id="L19" class="blob-num js-line-number" data-line-number="19"></td>
<td id="LC19" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>print() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L20" class="blob-num js-line-number" data-line-number="20"></td>
<td id="LC20" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L21" class="blob-num js-line-number" data-line-number="21"></td>
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<tr>
<td id="L22" class="blob-num js-line-number" data-line-number="22"></td>
<td id="LC22" class="blob-code blob-code-inner js-file-line"> expect_output(print(<span class="pl-smi">linreg_mod</span>),<span class="pl-s"><span class="pl-pds">"</span>linreg<span class="pl-cce">\\</span>(formula = Petal<span class="pl-cce">\\</span>.Length ~ Sepal<span class="pl-cce">\\</span>.Width <span class="pl-cce">\\</span>+ Sepal<span class="pl-cce">\\</span>.Length, data = iris<span class="pl-cce">\\</span>)<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L23" class="blob-num js-line-number" data-line-number="23"></td>
<td id="LC23" class="blob-code blob-code-inner js-file-line"> expect_output(print(<span class="pl-smi">linreg_mod</span>),<span class="pl-s"><span class="pl-pds">"</span>( )*<span class="pl-cce">\\</span>(Intercept<span class="pl-cce">\\</span>)( )*Sepal<span class="pl-cce">\\</span>.Width( )*Sepal<span class="pl-cce">\\</span>.Length<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L24" class="blob-num js-line-number" data-line-number="24"></td>
<td id="LC24" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L25" class="blob-num js-line-number" data-line-number="25"></td>
<td id="LC25" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L26" class="blob-num js-line-number" data-line-number="26"></td>
<td id="LC26" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>pred() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L27" class="blob-num js-line-number" data-line-number="27"></td>
<td id="LC27" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L28" class="blob-num js-line-number" data-line-number="28"></td>
<td id="LC28" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L29" class="blob-num js-line-number" data-line-number="29"></td>
<td id="LC29" class="blob-code blob-code-inner js-file-line"> expect_equal(round(unname(pred(<span class="pl-smi">linreg_mod</span>)[c(<span class="pl-c1">1</span>,<span class="pl-c1">5</span>,<span class="pl-c1">7</span>)]),<span class="pl-c1">2</span>), c(<span class="pl-c1">1.85</span>, <span class="pl-c1">1.53</span>, <span class="pl-c1">1.09</span>)) </td>
</tr>
<tr>
<td id="L30" class="blob-num js-line-number" data-line-number="30"></td>
<td id="LC30" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L31" class="blob-num js-line-number" data-line-number="31"></td>
<td id="LC31" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L32" class="blob-num js-line-number" data-line-number="32"></td>
<td id="LC32" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>resid() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L33" class="blob-num js-line-number" data-line-number="33"></td>
<td id="LC33" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L34" class="blob-num js-line-number" data-line-number="34"></td>
<td id="LC34" class="blob-code blob-code-inner js-file-line"> </td>
</tr>
<tr>
<td id="L35" class="blob-num js-line-number" data-line-number="35"></td>
<td id="LC35" class="blob-code blob-code-inner js-file-line"> expect_equal(round(unname(resid(<span class="pl-smi">linreg_mod</span>)[c(<span class="pl-c1">7</span>,<span class="pl-c1">13</span>,<span class="pl-c1">27</span>)]),<span class="pl-c1">2</span>), c(<span class="pl-c1">0.31</span>, <span class="pl-k">-</span><span class="pl-c1">0.58</span>, <span class="pl-k">-</span><span class="pl-c1">0.20</span>))</td>
</tr>
<tr>
<td id="L36" class="blob-num js-line-number" data-line-number="36"></td>
<td id="LC36" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L37" class="blob-num js-line-number" data-line-number="37"></td>
<td id="LC37" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L38" class="blob-num js-line-number" data-line-number="38"></td>
<td id="LC38" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>coef() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L39" class="blob-num js-line-number" data-line-number="39"></td>
<td id="LC39" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L40" class="blob-num js-line-number" data-line-number="40"></td>
<td id="LC40" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L41" class="blob-num js-line-number" data-line-number="41"></td>
<td id="LC41" class="blob-code blob-code-inner js-file-line"> expect_true(all(round(unname(coef(<span class="pl-smi">linreg_mod</span>)),<span class="pl-c1">2</span>) <span class="pl-k">%in%</span> c(<span class="pl-k">-</span><span class="pl-c1">2.52</span>, <span class="pl-k">-</span><span class="pl-c1">1.34</span>, <span class="pl-c1">1.78</span>)))</td>
</tr>
<tr>
<td id="L42" class="blob-num js-line-number" data-line-number="42"></td>
<td id="LC42" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L43" class="blob-num js-line-number" data-line-number="43"></td>
<td id="LC43" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L44" class="blob-num js-line-number" data-line-number="44"></td>
<td id="LC44" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L45" class="blob-num js-line-number" data-line-number="45"></td>
<td id="LC45" class="blob-code blob-code-inner js-file-line">test_that(<span class="pl-s"><span class="pl-pds">"</span>summary() works<span class="pl-pds">"</span></span>, {</td>
</tr>
<tr>
<td id="L46" class="blob-num js-line-number" data-line-number="46"></td>
<td id="LC46" class="blob-code blob-code-inner js-file-line"> <span class="pl-smi">linreg_mod</span> <span class="pl-k"><-</span> linreg(<span class="pl-smi">Petal.Length</span><span class="pl-k">~</span><span class="pl-smi">Sepal.Width</span><span class="pl-k">+</span><span class="pl-smi">Sepal.Length</span>, <span class="pl-v">data</span><span class="pl-k">=</span><span class="pl-smi">iris</span>)</td>
</tr>
<tr>
<td id="L47" class="blob-num js-line-number" data-line-number="47"></td>
<td id="LC47" class="blob-code blob-code-inner js-file-line"> </td>
</tr>
<tr>
<td id="L48" class="blob-num js-line-number" data-line-number="48"></td>
<td id="LC48" class="blob-code blob-code-inner js-file-line"> expect_output(summary(<span class="pl-smi">linreg_mod</span>), <span class="pl-s"><span class="pl-pds">"</span><span class="pl-cce">\\</span>(Intercept<span class="pl-cce">\\</span>)( )*-2.5[0-9]*( )*0.5[0-9]*( )*-4.4[0-9]*( )*.*( )*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-pds">"</span></span>) </td>
</tr>
<tr>
<td id="L49" class="blob-num js-line-number" data-line-number="49"></td>
<td id="LC49" class="blob-code blob-code-inner js-file-line"> expect_output(summary(<span class="pl-smi">linreg_mod</span>), <span class="pl-s"><span class="pl-pds">"</span>Sepal.Width( )*-1.3[0-9]*( )*0.1[0-9]*( )*-10.9[0-9]*( )*.*( )*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L50" class="blob-num js-line-number" data-line-number="50"></td>
<td id="LC50" class="blob-code blob-code-inner js-file-line"> expect_output(summary(<span class="pl-smi">linreg_mod</span>), <span class="pl-s"><span class="pl-pds">"</span>Sepal.Length( )*1.7[0-9]*( )*0.0[0-9]*( )*27.5[0-9]*( )*.*( )*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-cce">\\</span>*<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L51" class="blob-num js-line-number" data-line-number="51"></td>
<td id="LC51" class="blob-code blob-code-inner js-file-line"> expect_output(summary(<span class="pl-smi">linreg_mod</span>), <span class="pl-s"><span class="pl-pds">"</span>Residual standard error: 0.6[0-9]* on 147 degrees of freedom<span class="pl-pds">"</span></span>)</td>
</tr>
<tr>
<td id="L52" class="blob-num js-line-number" data-line-number="52"></td>
<td id="LC52" class="blob-code blob-code-inner js-file-line">})</td>
</tr>
<tr>
<td id="L53" class="blob-num js-line-number" data-line-number="53"></td>
<td id="LC53" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
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