I have to use g.raphaeljs library to create a scatterplot graph. Not only that but i am trying to get a trend line as well, and am wondering how I should go about this.
I was thinking of calculating the mean of the x axis and the y axis and drawing a straight line based on slope.... but am still stuck.
Any help is appreciated.
Also the data used to plot the points on the dot chart is provided by a user.