# Analysis chart types

BMC Helix Continuous Optimization provides different types of charts that display statistical information. The following table describes each available chart type and their representation in greater detail, and shows an example screenshot:

**Chart types**

Chart category | Chart representation | Examples(Click on thumbnails to enlarge) |
---|---|---|

Time: A time-based chart represents data over a time axis during the time filter period. The X axis represents the time range for which the chart is plotted. The Y axis represents the metric being measured against time. | Line: A two-dimensional scatter plot of a line that represents the values over time. | |

Line and dots: A two-dimensional scatter plot of values connected by a line, where each value is represented using a dot. | ||

Dots: A dot that indicates a sample is placed for each value. | ||

Bars: Represents information using rectangular bars that representative of the values. | ||

Area: In this chart, the area below the line is colored. | ||

Stacked Area: In this chart, the area below the line is colored and different areas are placed one over another (stacked). | ||

Stacked bar: In this chart, each sample is represented as a bar, but multiple bars are placed one over the other. | ||

Table: Represents a table. | ||

Calendar: The Calendar chart shows multiple time charts, based on a calendar period. For example, one chart per day within a month or one chart per week within a month. | Line: A two-dimensional scatter plot of a line that represents the values over time. | |

Last Values: The Last Values chart is used for configuration metrics which only shows the last value of each metric during the time filter period. | Pie: A chart that represents the contribution of each value in proportion to the total. | |

Bars: Represents information using rectangular bars that have lengths proportional to the values. | ||

Table: A table is used to display the data. | ||

Summary: The Summary chart represents an aggregated valueduring the time filter period, based on the average value of the statistic you selected. For example, the average value or the maximum value. | Pie: A chart that represents the contribution of each value in proportion to the total. | |

Bars: Represents information using rectangular bars that have lengths proportional to the values. | ||

The chart is very similar to the bar chart, but with a 3D effect.Cylinders: | ||

The chart is very similar to the bar chart. However, the X and Y axis are swapped.Horizontal Bars: | ||

Horizontal Cylinders: The chart is very similar to cylinders. However, the X and Y axis are swapped. | ||

Table: A table is used to display the data. | ||

Gauge: Represents a gauge chart. | ||

This chart represents the number of entities Summary Classes: (typically systems) in buckets based on their summary value. For example, if the CPU utilization of a system is 55% that machine will count 1 in the bucket between 50% and 60%. | Bars: Represents information using rectangular bars that have lengths proportional to the values. | |

Frequency histogram: It is similar to Summary Classes but it is counting,instead of the number of systems, it is counting number of analyzed samples falling in the bucket. For example, if the CPU utilization metric has 1 sample 55%, 1 sample 70% and 2 samples 58%, this will count as 3 for the bucket between 50% and 60% and 1 for the bucket between 60& and 70%. | Bars: Represents information using rectangular bars that have lengths proportional to the values. | |

Line and dots: In this chart, a line connects the samples and a dot is placed on each sample |

## Analysis chart types supported in Views

The graphs that are displayed in the capacity views in BMC Helix Continuous Optimization are based on analysis chart types. The following table describes each supported chart type:

**Chart types**

Chart representation | Examples(Click on thumbnails to enlarge) |
---|---|

Line: A two-dimensional scatter plot of a line that represents the values over time. Information is displayed as a series of data points connected by straight line segments. | |

Bar: Represents grouped data using rectangular bars that have lengths proportional to the values that they represent. | |

Area: The area chart functions the same way as a line chart, only it fills the area between the line and the threshold. | |

Pie: A chart that represents the contribution of each value in proportion to the total. | |

| |

Stacked Bar: In this chart, each sample is represented as a bar, but multiple bars are placed one over the other. | |

| |

Category - Horizontal Bar: This chart functions the same way as a Category - Bar chart, but the bars are placed horizontally. | |

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Category - Horizontal Stacked Bar: This chart functions the same way as a Category - Stacked Bar chart, but the stacked bars are placed horizontally. | |

Custom: You can also add custom analysis templates for custom views.For example: **Mixed - Line and Area**:**Line**: This chart has both Line and Area representation.**Frequency Histogram**: This chart uses vertical columns to show frequencies. It represents the number of analyzed samples in buckets, based on their summary value. For example, if the CPU utilization metric has 1 sample showing 55%,1 sample showing 70% and 2 samples showing 58%, this will count as 3 for the bucket between 50% and 60% and 1 for the bucket between 60 and and 70%.
For more details, see To create an analysis template. |

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