remove warning in blog 2021-01-15-causal-effect-mobility

Author: minhkhul

content/blog/2021-01-15-causal-effect-mobility.Rmd

@@ -398,7 +398,7 @@ weekly deaths and mobility
 starting February 15, 2020,
 for a few states:
 
-```{r deaths-by-state, message=FALSE}
+```{r deaths-by-state, message=FALSE, warning=FALSE}
 library(covidcast)
 library(directlabels)
 library(dplyr)

content/blog/2021-01-15-causal-effect-mobility.html

@@ -364,13 +364,9 @@ <h2>The Data and the Results</h2>
 for a few states:</p>
 <pre class="r"><code>library(covidcast)
 library(directlabels)
-## Warning: package &#39;directlabels&#39; was built under R version 4.1.3
 library(dplyr)
-## Warning: package &#39;dplyr&#39; was built under R version 4.1.3
 library(lubridate)
-## Warning: package &#39;lubridate&#39; was built under R version 4.1.3
 library(ggplot2)
-## Warning: package &#39;ggplot2&#39; was built under R version 4.1.3
 
 options(covidcast.auth = Sys.getenv(&quot;API_KEY&quot;)) # for more on API keys, see: https://cmu-delphi.github.io/delphi-epidata/api/api_keys.html
 
@@ -422,12 +418,7 @@ <h2>The Data and the Results</h2>
        subtitle = &quot;From JHU CSSE COVID-19 data&quot;,
        caption = &quot;Data from Delphi COVIDcast, delphi.cmu.edu&quot;) +
   theme_bw() +
-  guides(color = FALSE)
-## Warning: The `&lt;scale&gt;` argument of `guides()` cannot be `FALSE`. Use &quot;none&quot; instead as
-## of ggplot2 3.3.4.
-## This warning is displayed once every 8 hours.
-## Call `lifecycle::last_lifecycle_warnings()` to see where this warning was
-## generated.</code></pre>
+  guides(color = FALSE)</code></pre>
 <p><img src="/blog/2021-01-15-causal-effect-mobility_files/figure-html/deaths-by-state-1.svg" width="672" /></p>
 <pre class="r"><code>ggplot(dat_week, aes(x = week, y = weekly_stay_home, color = state)) +
   geom_line() +