| iTool User's Guide: Working with Plots |

## iPlot Tool Operations

Many operations are available in the iPlot tool. Once you have visualized your plot data, you can scale and filter as well as creating a histogram or viewing statistics for your plot. The following operations are available for plots.

### Scaling a Plot Display

iPlot allows you to scale your plotted data by selecting Operations Transform Scale Data. You can scale your data by a factor which you provide in the Scale Factor dialog.

Figure 13-13: Setting the Plot Scale Factor

Figure 13-13: Setting the Plot Scale Factor

Once you have set the scale factor, select OK and the scaling takes place.

### Viewing a Histogram

A density histogram is a plot consisting of either horizontal or vertical bars. The widths or heights of these bars represent data values. Another type of histogram is a style plot histogram which plots different data sets side-by-side using differently styled points or bars to represent the data. To view a density histogram of plot data, use the iTool's histogram feature by selecting Operations Histogram. For information on histogram creation, see Plotting a Histogram.

### Viewing Statistics

To view statistics for plot data, use the iTool's statistics feature by selecting Operations Statistics. For information on viewing statistics, see Displaying Statistics.

IDL Online Help (March 01, 2006)