![]() A percentage field will also be added to the result table listing the percentage of the count of points, total length, or total area that belong to all values from the group by field for each feature. When Add percentages is checked, two new fields will be added to the result layer listing the percentage of the count of points, total length, or total area that belong to the minority and majority values for each feature. The fields will list the values from the group field that are the minority and majority for each result feature. When Add minority, majority is checked, two new fields will be added to the result layer. The minority and majority will be the least and most dominant value from the group by field, respectively, where dominance is determined using the count of points, total length, or total area of each value. The Add minority, majority and Add percentages boxes are enabled when a group by field is entered. ![]() A summary table listing each feature and statistic by group by field value will also be created. When a group by field is selected, the pop-up for each of the features in the output layer will contain charts showing each summary count or total and statistic by field value. Optionally, a group by field can be selected so statistics are calculated separately for each unique attribute value. The summarized data can be viewed in the result layer's table or pop-ups. Each time a Field and Statistic is entered, a new row will be added to the tool pane so more than one statistic can be calculated at once. There are five options for statistics that can be calculated on numeric fields in the layer to be summarized: sum, minimum, maximum, average, and standard deviation. Standard setting) or Square Kilometers (Metric setting) Standard setting) or Kilometers (Metric setting) If you are aggregating into squares, the bin size is the height of the square, which is equal to the width. If you are aggregating into hexagons, the size is the height of each hexagon and the width of the resulting hexagon will be 2 times the height divided by the square root of 3. The bin size specifies how large the bins are. You can provide the area layer to use for analysis, or you can generate bins of a specified size and shape (hexagon or square) into which to aggregate. The inputs for Summarize Within include one area layer that serves as the boundary for summarizing features and a point, line, or area layer to be summarized. Summarize Within can be used to summarize the qualifying zones within the city's boundary to find the total area of potential development zones. Summarize Within will be used to determine the number of low-income families in each college district so the cable provider can choose an appropriate district for its pilot program.Ī development company is looking to make some money by creating a new mixed-use development in an urban center. The Summarize Within tool is used to count the number of streetlights and miles of bike routes in each district so that the projects can be prioritized effectively.Ī cable provider is starting a pilot program where it provides low-cost Internet access to low-income community college students. The Summarize Within tool calculates statistics in areas where an input layer overlaps a boundary layer.Ī city is trying to deal with a backlog of maintenance projects and wants to involve the maintenance assessment districts in projects related to streetlight and bike route maintenance. ![]()
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