Differences

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--- b:head_first_statistics:visualization [2020/09/07 12:22] – [Pie Chart] hkimscil
+++ b:head_first_statistics:visualization [2022/09/14 08:49] – hkimscil
@@ Line 21: / Line 21: @@
 Good to go with
   * frequency data for categories which should add up to 100 percent
+----
+Better
 {{better.pie.chart.jpg}}
+  * side note for actual numbers and
+  * table
+----
+Bad
+{{bad.pie.chart.jpg?350}}
+  * 각 게임 장르별 사용자의 만족도 퍼센티지를 모아 놓은 파이차트는 유용하지 않다.
+====== Bar chart ======
+{{good.bar.chart.jpg?600}}
+  * region 별 sales
+  * 대륙 별 sales
+  * 분기 별 수익률
+  * 카테고리화한 종류 별 숫자기록 (일반화)
+{{good.bar.chart.2.png?600}}
+  * 장르 별 만족도
+  * (우리 회사) 부서별 성취도
+====== Histogram ======
+^ ser  ^ freq  ^
+| 1  | 100  |
+| 2  | 88  |
+| 3  | 159  |
+| 4  | 201  |
+| 5  | 250  |
+| 6  | 250  |
+| 7  | 254  |
+| 8  | 288  |
+| 9  | 356  |
+| 10  | 380  |
+| 11  | 430  |
+| 12  | 450  |
+| 13  | 433  |
+| 14  | 543  |
+| 15  | 540  |
+| 16  | 570  |
+| 17  | 450  |
+| 18  | 433  |
+| 19  | 543  |
+| 20  | 690  |
+| 21  | 640  |
+| 22  | 720  |
+| 23  | 777  |
+| 24  | 720  |
+| 25  | 880  |
+| 26  | 900  |
+Excel에서의 histogram
+| Bin  | Frequency  |
+| 199  | 3  |
+| 399  | 7  |
+| 599  | 9  |
+| 799  | 5  |
+| 999  | 2  |
+in R . . . .
+<code>
+dat <- c(100, 88, 159, 201, 250, 250, 254, 288, 356, 380,
+, 450, 433, 543, 540, 570, 450, 433, 543, 690,
+, 720, 777, 720, 880, 900)
+dat
+hist(dat)
+hist(dat, breaks=5)
+</code>
 ====== Scatter plot ======
+<code>
+hist(mtcars$hp)
+</code>
+{{:c:ps1-1:2019:pasted:20190909-103341.png}}
-<code># Simple Scatterplot
+ <code># Simple Scatterplot
 attach(mtcars)
 plot(wt, mpg, main="Scatterplot Example",
@@ Line 97: / Line 168: @@
 see
 https://www.gapminder.org/answers/how-does-income-relate-to-life-expectancy/
-  * Histogram
+  * Life expectancy data: {{:life.exp.csv}}
-{{:c:ps1-1:2019:pasted:20190909-103341.png}}
-    * Life expectancy data: {{:life.exp.csv}}
 <code>