This article explains how to export statistics from PIX4Dfields in .csv file format.

Exporting statistics

• Click Export.
• On the Export Menu, click  Statistics.
• Select the  Layer/s  where annotations are, choose decimal separator (comma or point).
• Click Export, choose  Folder of destination.

Export button.

Two files will be exported:

•   annotation-statistics: Calculates the zonal statistics within the annotation.
•   layer-statistics: Calculates basic statistics of the entire raster layer.

Annotation-statistics.csv

This file contains statistics about each annotation or plot. 

Annotation's statistics exported.

• Mean index value: Refers to the average value of the pixels inside every specific plot that has been calculated using the bands of the corresponding vegetation index. 
• Index value SD: Refers to the Standard Deviation (SD), which describes how spread out the dataset is. It is a measure of the amount of variation or dispersion of the plot. A low SD indicates that the values tend to be close to the mean of the dataset, while a high SD indicates that the values are spread out over a wider range.
• Mean index value (visible): Refers to the average of the pixels inside each plot within the range selected in the histogram.
• Index value (visible) SD: Refers to the SD of data within the range selected in the histogram.
• Area: Refers to the surface covered by the plot and it does not take into account changes on the histogram range.

Layer-statistics.csv

This file contains statistics about the selected layers. The example below describes an NDRE index and Digital Surface Model.

• Area: Refers to the surface covered by the layer.
• Area (visible): Refers to the surface only covered by the pixels within the range selected in the histogram.
• Min-Max: Refers to the minimum and maximum values present on each layer.
• Min - Max (Visible): Refers to the minimum and maximum values within the range selected in the histogram for each layer.
• Mean index value: Refers to the average value of all pixels in the layer, that has been calculated using the bands of the corresponding vegetation index. 
• Index value SD: Refers to the SD of data present in the whole layer.
• Mean Height: Refers to the average height present in the layer, it will be present if Digital Surface Model (DSM) was selected when exporting.
  
• Height SD: Refers to de SD of the DSM.
• Mean index value (visible): Refers to the average value of all pixels within the range selected in the histogram.
• Index value SD (visible): Refers to the SD of data within the range selected in the histogram.
• Mean height (visible): Refers to the average height value of all pixels within the range selected in the histogram.
• Height (visible) SD: Refers to the SD of height data within the range selected in the histogram.