QStudio - Example Charts
Time Series
Format
- The first date/time column found will be used for the x-axis.
- Each numerical column represents one time series line on the chart.
Day Sines
A sine/cosine wave over a period of days.
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Kdb Code
Intraday Position
Position and Costs throughout the day.
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Kdb Code
Line Chart
Format
- The first string columns are used as category labels.
- Whatever numeric columns appear after the strings represents a separate series in the chart.
Multiple Series with Time X-Axis
2 series are shown, one for Sales, One for Costs. x-axis is in months.
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Kdb Code
Single Category
One number column generates one series.
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Kdb Code
Multiple series
Each column is a new series/colored bar.
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Kdb Code
Area Chart
Format
- The first string columns are used as category labels.
- Whatever numeric columns appear after the strings represents a separate series in the chart.
Multiple Series with Time X-Axis
2 series are shown, one for Sales, One for Costs. x-axis is in months.
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Kdb Code
Single Category
One number column generates one series.
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Kdb Code
Multiple series
Each column is a new series/colored bar.
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Kdb Code
Bar Chart
Format
- The first string columns are used as category labels.
- Whatever numeric columns appear after the strings represents a separate series in the chart.
Multiple Series with Time X-Axis
2 series are shown, one for Sales, One for Costs. x-axis is in months.
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Kdb Code
Single Category
One number column generates one series.
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Kdb Code
Multiple series
Each column is a new series/colored bar.
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Kdb Code
Bar Chart Stacked
Format
- The first string columns are used as category labels.
- Whatever numeric columns appear after the strings represents a separate series in the chart.
Multiple Series with Time X-Axis
2 series are shown, one for Sales, One for Costs. x-axis is in months.


KDB Code
Multiple series
Each column is a new series/colored bar.
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
KDB Code
Multiple series with many categories on the X-axis
Each column is a new series/colored bar. When there are a lot of categories, some labels are hidden.


KDB Code
Bubble Chart
Format
- The first string columns are used as category labels.
- There must then be 3 numeric columns which are used for x-coord, y-coord, size in that order.
Single series
The three columns are used for x-axis,y-axis and size respectively. Notice the GdpPerCapita column has been divided to make it similar sized to the othercolumns so that the bubbles are a sensible size.
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Kdb Code
Candlestick
Format
The table should contain columns labelled open/high/low/close/volume
but must atleast contain high/low to allow it to be drawn.
Prices going up
A Candlestick showing decreasing prices after 9AM but increasing volumes of trade
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Kdb Code
Data Table
Format
Any format of table is acceptable, all rows/columns will be shown as a plain table.
Many Columned Table
All rows/columns will be shown as a plain table.
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Kdb Code
Heat Map
Format
A HeatMap works best with 1+ string columns.
- Starting from the left each string column is taken as one nesting level
- The first numerical column will be taken as size, the second as colour.
Country GDP's
The continent column is a top-level branch, the country column becomes leafs.The first two columns are GDP and GDP per Capita which become the size and color of the leafs respectively.
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Kdb Code
Histogram
Format
Each Numeric column represents a separate series in the histogram. The series values are placed into buckets and their frquency tallied.
Profit Distribution
Distribution of Returns and Losses
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Kdb Code
Pie Chart
Format
Each numerical column represents a pie chart.The title of each pie chart will be the column title.Each row will be a section of the pie and will use the row title as a label.
Single Pie Chart Example
A single numerical columns gives a single pie chart for that column.
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Kdb Code
Multiple Pie Chart Example
Using multiple numerical columns gives a pie chart for each column.
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Kdb Code
Scatter Plot
Format
- Two or more numeric columns are required.
- The values in the first column are used for the X-axis.
- The values in following columns are used for the Y-axis.
- Each column is displayed with a separate color.
Country Population and GDP
The first column GDP is used for the x-axis. The subsequent columns are then plotted against that x axis as separate colored series.
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Kdb Code
Step Plot
Format
- The first date/time column found will be used for the x-axis.
- Each numerical column represents one time series line on the chart.
Day Sines
A sine/cosine wave over a period of days.
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KDB Code
DOT Graph
Format
- The table can contain columns labelled from/to/label/style.
- If it does not, the first two columns are assumed to be from and to respectively.
- The dot file generated gives a directed graph from "from" nodes to "to" nodes with applicable style/labels.
- Graphviz Dot MUST be on your command line PATH for this to work.
Alphabet Spaghetti
A directed graph with 5 nodes.
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KDB Code