Merge pull request #346 from alanahjonas95/gigi

Added documentation link to the SAS reference for skewness
PSIAIMS · Oct 22, 2024 · a3d5b83 · a3d5b83
2 parents 867422f + f4e1fa4
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diff --git a/R/ancova.qmd b/R/ancova.qmd
@@ -52,7 +52,11 @@ my_formula <- as.formula(post ~ drug + pre)
 
 ## Introduction
 
-In this example, we're looking at [Analysis of Covariance](https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.4/statug/statug_glm_examples04.htm). ANCOVA is typically used to analyse treatment differences, to see examples of prediction models go to the [simple linear regression page](linear-regression.qmd).
+ANOVA is a statistical method used to compare the means of three or more groups to determine if at least one group mean is significantly different from the others. Please see the [anova.qmd](ANOVA%20page) for more information. ANCOVA is an extension to ANOVA.
+
+ANCOVA (Analysis of Covariance) is a statistical method that compares the means of two or more groups while controlling for one or more continuous covariates. By adjusting for these covariates, ANCOVA helps to reduce potential confounding effects, allowing for a clearer assessment of the main treatment effects. It assumes linear relationships between covariates and the dependent variable, along with normality and homogeneity of variances.
+
+We follow the example from link [Analysis of Covariance](https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.4/statug/statug_glm_examples04.htm)
 
 ## Data Summary
 

diff --git a/SAS/anova.qmd b/SAS/anova.qmd
@@ -1,5 +1,5 @@
 ---
-title: "linear-models"
+title: "ANOVA"
 ---
 
 ### **Getting Started**
@@ -60,3 +60,5 @@ knitr::include_graphics("../images/linear/sas-ss-type-3.png")
 ```{r, echo=FALSE, fig.align='center', out.width="75%"}
 knitr::include_graphics("../images/linear/sas-ss-type-4.png")
 ```
+
+Reference: [Sum of squares type I, II, and III](http://dwoll.de/rexrepos/posts/anovaSStypes.html)
diff --git a/SAS/summary_skew_kurt.qmd b/SAS/summary_skew_kurt.qmd
@@ -48,7 +48,7 @@ The following shows the SAS documentation for the two measures.
 
 ### Skewness
 
-The SAS documentation for Skewness is provided here for convenience:
+The [SAS documentation for Skewness](https://documentation.sas.com/doc/en/vdmmlcdc/8.1/casfedsql/p04x27b92gon3gn10e5y5ybxbvmi.htm) is provided here for convenience:
 ```{r, echo=FALSE, fig.align='center', out.width="100%"}
 knitr::include_graphics("../images/summarystats/sas_skewness.png")
 ```

diff --git a/renv.lock b/renv.lock
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       "Hash": "5c715954112b45499fb1dadc6ee6ee3e"
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-}
+}
diff --git a/requirements.txt b/requirements.txt
@@ -123,4 +123,4 @@ webencodings==0.5.1
 websocket-client==1.7.0
 wheel==0.44.0
 widgetsnbextension==4.0.10
-zipp==3.18.1
+zipp==3.18.1
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           "Hash": "5c715954112b45499fb1dadc6ee6ee3e"
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