Steema Central

Hi

I have a couple of questions about the trend function. I use it in a number of graphs to display a trend for temperatures in each month of the year and visually it works very well.

What I would like to do is extract the trend (the x and y values for the start and end points would be great) for each month and add them to a grid. I can't find an example of getting at the values that the trend function must calculate to display this line.

The other question I have - is can I use the clever bit of code that calculates the trend without displaying a graph - or is it dependent on a graph being displayed?

Bruce.

Hi Bruce,

Metman wrote:What I would like to do is extract the trend (the x and y values for the start and end points would be great) for each month and add them to a grid. I can't find an example of getting at the values that the trend function must calculate to display this line.

TeeChart functions have to be connected to a Series to be drawn. Then, when the function has been calculated, it "inserts" the values into the series XValues/YValues Valuelists. You can get the values from these lists.

Metman wrote:The other question I have - is can I use the clever bit of code that calculates the trend without displaying a graph - or is it dependent on a graph being displayed?

You can always make the associated series invisible (Visible:=false) but the function always needs the associated series for being calculated.