OCR: You can use this command for drawing the contours of two dimensional data set select the data choose its data window from theata Window' dndod menu, then enter the range columns and rows The column number of each cell becomes coordinate, the row number the Y-coordinate. value the coordinate The contours can either be drawn at regular intervals (select Reqular contour levels custom intervals (select Custom contour levels") If you have selected "Custom contour levels" you must select window and - col in this window. This column contains list of Z-values where contours are drawn. The following columns can specify further, optional parameters, if they hav one of the following names: "thic :kness": specifies the thickness of each contour line 'dash" specifies the dash pattern each contour line ...