## Data

## Data in 2D and 3D

Edit and select Data from a grid and draw a 2D or 3D Graph. You may view 3D data in the 3D viewer and make Contour plots and Cross-sections through Contour plots. Some statistical properties of the data may be calculated. You may also draw a histogram or the (cumulative, normalized) distribution function of selected data. You may apply a Chi-square test or a Kolmogorov-Smirnov test to compare two distributions.

## Histogram

- Histogram

Select a number of Y-values from a data grid. You may draw a histogram of these Y-values. It may be necessary to sort the data in increasing order before drawing the histogram.**Note that the Y-values from the data grid are given along the X-axis in the graph**. - Histogram – normalised

The normalised distribution is obtained by deviding the numbers in each bin by the total number of X-values. This distribution approaches a probability function for large total number Ny and large number of bins Nbins.