howto

How To Do

Here, you will find small how-tos with code snippets which show how to solve various tasks with GRAL.

Data

Load data from a file

Sort by a certain column

Add a column with row numbers to my data

Plots

Make a doughnut plot

Create empty sections in a pie plot

Add a legend to a plot

Change the position of the legend

Set the colors for the bars in a bar plot

Add a background image to my plot

Combine a bar plot with a line plot

Change the origin of a plot

Change the labels of a legend

Put labels of bars below the x-axis in a bar plot

Axes

Add a title to an axis

Use a logarithmic axis

Display date or time labels on my axis

Rotate axis labels

Swap the direction of an axis

Add a second x or y axis to an XYPlot

Move the y axis completely to the left or to the right

Data points

Use a different shape for data points

Change the size of data points

Get the pixel coordinates of data points

Lines

Use a dashed line to connect data points

Cut out data points from lines