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# GIS Analysis

## How to Fill NoData for Raster Data

SAGA GIS has a quick and dirty tool to fill NoData holes with raster data. We show you how to close gaps in DEMs or any raster data with holes in it.

## Service Areas in ArcGIS Network Analyst

The ArcGIS Network Analyst Service Area analysis tool is perfect finding out just how far your cities firefighters, ambulance or paramedics can service.

## How to Capitalize the First Letter in a Field Using Python in ArcGIS

If your letters and words are all uppercase or lowercase in a field, and you want to capitalize the first letter of each word, use this Python code block.

## 7 Geoprocessing Tools Every GIS Analyst Should Know

So you want to geoprocess like a GIS guru, do you? From clipping to buffering, you will learn the basic GIS processing tools along with uses & applications

## How to Create QGIS Atlas Mapbooks

Like a modern-day mechanical mapping machine, you can automate your map output. We explain how to create mapbooks with this QGIS Atlas tutorial.

## MAUP – Modifiable Areal Unit Problem

The modifiable areal unit problem (MAUP) is a statistical bias that occurs when you aggregate point data such as the scale and zonal effect.

## What is Map Algebra? [Raster Math]

Map algebra is a cell-by-cell combination of stacked raster grids. It uses math-like functions with arithmetic, statistics and trigonometry operators.

## What is ArcToolbox?

ArcToolbox is a collection of GIS tools for analyzing, editing and converting data. Each toolbox has a unique set of specialized tools for spatial analysis.

## How To Use ArcGIS Desktop (ArcMap)

This is an overview how to use ArcGIS Desktop (ArcMap). We teach you the user interface, toolbars, licenses, menu bars, extensions, windows and more!

## Raster Clip in GIS

Save time by learning how to clip rasters in ArGIS using the raster clip tool in ArcToolbox as well as the clip button in the Image Analysis Toolbar.