12/27/2023 0 Comments Powerpoint thought bubbleThere are two ways to add a trendline to the chart: In a bubble chart, the bubble size is used to weight each point’s contribution to the difference. The trendline is calculated using linear regression so that the sum over all points of the quadratic difference between the Y coordinate and the trendline value at the X coordinate is minimized. They are used for the study of problems of prediction, also called regression analysis. A trendline is a graphical representation of trends in the group. In scatter or bubble charts you can let think-cell calculate a trendline for a group of values. To change the order, choose Bring to Front from a bubble’s context menu. When two bubbles overlap, the smaller bubble will be shown in front of the larger one. All other bubbles are scaled accordingly, as the ratio between bubbles is always determined by the numbers in the datasheet’s Size column. When you select one of the bubbles inside the chart, a similar handle appears on the right boundary. To change the bubble size used in the legend, select the bubble and drag the handle that appears on the right boundary. To enable a legend of the bubble size, click Add Bubble Size Legend in the chart’s context menu. The Make Diameter Represent Size button in the context menu can be used to set the Size value to be proportional to the diameter of each circle. By default, the Size value is proportional to the area of the circle. The circle sizes are determined by the values in the Size column. The bubble chart is a variant of the scatter chart, with data points marked by circles. However, the automatic label placement may offset the labels from this position to prevent overlap. In this case the labels are centered on the position of the data points. If you choose No Markers in the marker scheme control, the markers for the data points are switched off. The marker shape control can be used to set the marker shape for individual data points (see Marker shape). The scatter chart uses the marker scheme control to consistently mark data points belonging to the same group (see Marker scheme). 12.2 Scatter chart Icon in Elements menu: An acceptable placement for all labels can normally be achieved by manually placing only a few problematic labels. Try to manually place one of the poorly placed labels and let the labeler automatically place the remaining labels. When this happens, manually placing labels will help. In rare circumstances the labeler may not find an optimal placement for all labels. You can save the file or continue to work on other charts or slides while the labeler is running. While the labeler is busy calculating the label placements, a rotating progress icon appears in the upper left corner of the chart and the concerned chart is highlighted with a light gray frame. The automatic labeler places labels as close to their data points as possible, using connecting lines if necessary (see Automatic label placement). If required, they can be enabled using the context menu. By default, labels are disabled in charts containing more than 300 data points. The label content control lets you select the format of the text field for each label, allowing the display of the label text as well as the x, y and size values (see Label content). Labels can be added using the Add Label button and removed using the Remove Labels button. In both chart types, up to two labels can be associated with each data point. 12.1 Labels 12.2 Scatter chart 12.3 Bubble chart 12.4 Trendline and partition 12.1 Labels If Use Datasheet Fill on Top is selected (see Color scheme), you can set the fill color from Excel’s cell formatting in any cell in a data point’s row to set the color for this data point’s marker. When all cells in the datasheet for one axis contain dates and Excel’s cell format is set to Date, then the tick mark labels of this axis show dates and you can format them accordingly (see Date format control). You may also use dates for the X or Y values. Please refer to Scales and axes for details. The axes of scatter charts and bubble charts can also be adjusted. Multiple data points belonging to the same group can be easily selected by clicking on a data point and then moving the mouse pointer while holding down the Shift key (see Multi-selection). In the above scatter chart datasheet, the first three data points belong to group A while the remaining data points belong to group B. The Group column in the datasheet can be used to organize individual data points into groups. The datasheet for a bubble chart contains values in the Size column, but is otherwise organized identically: The datasheet for a scatter chart is organized as follows, with each row representing a single data point: The charts differ, however, in the style of markers used for the individual data points. Scatter charts and bubble charts are similar in many aspects, both using an xy-plot to visualize datasheet contents.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |