Data Visualization Guide

---
name: data-visualization-guide
description: "data visualization guide. visualizer agent chart·graph designto do when reference visualization principle and chart optional framework. 'chart optional', 'visualization guide' request when usage. However, actual BI tool work dashboard building scope outside."
---

# Data Visualization Guide — data visualization guide

visualizer agent chart design quality visualization principle and pattern.

## chart optional framework

### data purposeby chart mapping

| purpose | recommendation chart | data condition |
|------|----------|-----------|
| comparison (item between) | versuschart, | week 2~15items |
| comparison (whentotal) | , chart | time required |
| composition/ratio | , quality versus, | total=100% |
| minute | , , point also | annualwithin figure |
| total | point, chart, | number 2~3items |
| flow/process | , | stageby figure |
| degree | , | position data |

### chart optional decision-making 

```
Q1: data number itemsperson?
├── 1items → minute confirm? → /
├── 2items → time ? → /
│ week? → versuschart
│ annualwithin? → point
└── 3items+ → chart//pyeongtable
```

## Mermaid based chart peopletax pattern

### versuschart (Bar Chart)

```mermaid
xychart-beta
 title "monthby sales "
 x-axis ["1month", "2month", "3month", "4month", "5month", "6month"]
 y-axis "sales(00M KRW)" 0 --> 50
 bar [15, 22, 28, 35, 30, 45]
```

### / chart peopletax template

```mermaid
pie title departmentfromby budget allocation
 "development" : 40
 "" : 25
 "operations" : 20
 "personcompany" : 15
```

## visualization principle

### Edward Tufte principle applied

| principle | description | applied method |
|------|------|----------|
| data- ratio | neededKorean decoration | 3D effect, background pattern prohibited |
| work number | chart conditionby | departmentfromby/durationby minute |
| element | work prohibited | Y mustwhen 0 whenwork (versuschart) |
| data also | between versus information versus | minimization, integration |

### usage rule

| also | rule |
|------|------|
| order data | total basis (example: annualKorean →Korean ) |
| week data | from minute versus 7items |
| | core data only , degree |
| /department | =, =department (documentquality ) |
| nature | eachor morespecialist , pattern/ |

## design tablelevel

### comparison 

| item | Q1 | Q2 | Q3 | Q4 | YoY |
|------|-----|-----|-----|-----|---------|
| sales | 120 | 135 | 142 | 155 | +15.2% |
| profit | 18 | 22 | 25 | 28 | +22.1% |

**rule**:
- figure , 
- (increase=record, decrease=)
- 1,000 
- 1 specify

## report typeby visualization 

### monthbetween performance report

```
required chart tax:
1. sales — (goal vs results, beforeyear basis)
2. departmentdocumentby sales — quality versus
3. KPI naturerate — chart or degree
4. cost structure — chart
5. core indicator — scorecard (specialist + beforemonth )
```

### marketanalysis report

```
required chart tax:
1. market scale — chart (CAGR tablewhen)
2. competitor point — quality or 
3. price comparison — numberpyeong versus (competitorby)
4. SWOT — 2x2 matrix 
5. positioning — point also (2: price vs quality)
```

## quality checklist

| item | standard |
|------|------|
| title | all chart un- title |
| | included |
| source | data source specify |
| | 3items or more when when required |
| figure | core data point directly tablewhen |
| nature | person when also minute possible |