We may not be so lucky in creating such a pretty nice looking matrix unless we take care of digitizing the Tpr curves at common Ppr values.
Library(zFactor) tpr_vec In this case we could form a pretty nice matrix of z values because we know beforehand that the values of Ppr are common to the given Tpr curves. Request PDF On Feb 1, 2016, Salih Rakap and others published Comparative evaluation of the reliability and validity of three data extraction programs: UnGraph, GraphClick, and DigitizeIt Find. we could only list then the files that contain data only in the ‘high pressure’ (hp) range: Now that we know the meaning of the name of digitized curve. Automatic detection of curves (solid, dotted or dashed), symbols, bar charts, or perimeters of areas Almost all file formats recognized (PDF, JPEG, GIF, TIFF, Photoshop.
Nnn: a three digit number representing the curve by the Tpr GraphClick is a graph digitizer software which allows to automatically retrieve the original (x,y)-data from the image of a scanned graph or from a QuickTime movie. Note that the files follow this convention: sk_: Sanding-Katz You need to type in the x- and y-scale, and then it scales the data from pixes to the units given. First you select the origin and top right corner to scale the axes, and then click through some points to capture the curve. "sk_hp_tpr_130.txt" "sk_hp_tpr_140.txt" "sk_hp_tpr_150.txt" Next I decided to write a short Python Script to extract and convert the coordinates by clicking on them. Library(zFactor) listStandingKatzCurves( pprRange = 'all') "sk_hp_tpr_105.txt" "sk_hp_tpr_110.txt" "sk_hp_tpr_120.txt"