Scatter

Description

Use this function by selecting two types of world grid square statistics and data from the data list. Both Vertical axis and horizontal axis corresponds to two selected types of data. The number or quantity of selected data are plotted as a scatter graph. Logarithmic conversion of axis values is applied by clicking on a light-blue square on each axis. You can also click on a point in the scatter plot to identify world grid square. The extracted world grid square is displayed by a blue pin on the map and appears as all the feature values in the bargraph at the selected world grid square. The three lines illustrate the results of linear regression analysis. Two straight black lines are of OLS regression analysis which explains the y-axis by the x-axis and of OLS regression analysis which explains the x-axis by the y-axis. Parameter estimates of regression analysis are shown below the scatter plots. Statistical significance level of regression coefficients by t-test are displayed. The red line is of RMA regression analysis. The regression coefficients are also displayed at the bottom of the scatter plots. If you want to use it, select scatter from the tab. This function also can be used to detect outliers that tend to be out of place from other scatter plots for finding something interesting.

In the following figure, for example, the 2015 female population (population census) aged 0-14 and the 2010 cencus population have been chosen. Trends per world grid square for two types of selected data can be confirmed visually.