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diff --git a/noao/lib/scr/hdicgfit.key b/noao/lib/scr/hdicgfit.key new file mode 100644 index 00000000..a635ff82 --- /dev/null +++ b/noao/lib/scr/hdicgfit.key @@ -0,0 +1,67 @@ +1. DTOI INTERACTIVE CURVE FITTING OPTIONS + +? Print options +a Add point at the cursor position to sample (from HD curve only) +c Print the coordinates and fit of point nearest the cursor +d Delete data point nearest the cursor +f Fit the data and redraw or overplot +g Redefine graph keys. Any of the following data types may be along + either axis. + x Independent variable y Dependent variable + f Fitted value r Residual (y - f) + d Ratio (y / f) n Nonlinear part of y + u Density above fog +o Overplot the next graph +q Exit the interactive curve fitting. Carriage return will also exit. +r Redraw graph +u Undelete the deleted point nearest the cursor +w Set the graph window. For help type 'w' followed by '?'. +x Change the x value of the point nearest the cursor +y Change the y value of the point nearest the cursor +z Change the weight of the point nearest the cursor + + +2. DTOI INTERACTIVE CURVE FITTING COLON COMMANDS + +The parameters are listed or set with the following commands which may be +abbreviated. To list the value of a parameter type the command alone. + +:show [file] Show the values of all the parameters +:vshow [file] Show the values of all the parameters verbosely +:errors [file] Print the errors of the fit (default STDOUT) +:reset Return to original conditions (x, y, wts and npts) +:ebars [errors/weights] Error bars can indicate either errors or weights +:function [value] Fitting function (power, cheby, legen, spline3, spline1) +:transform [value] Set the transform type (none, logo, k50, k75) +:fog [value] Change the fog level (or ":fog reset") +:order [value] Fitting function order +:quit Terminate HDFIT without updating database + +Additional commands are available for setting graph formats and manipulating +the graphics. Use the following commands for help. + +:/help Print help for graph formatting option +:.help Print help for cursor mode + + +3. DTOI INTERACTIVE CURVE FITTING GRAPH KEYS + +The graph keys h, i, j, k, and l indicate the following types of graphs: +h h = (x,y) transformed density vs. log exposure +i i = (y,x) log exposrue vs. transformed density +j j = (x,r) transformed density vs. residuals +k k = (x,d) transformed density vs. the y(data)/y(fit) ratio +l l = (y,u) log exposure vs. density above fog (HD Curve) + +The graph keys may be redefined to put any combination of axes type along +either graph axis with the 'g' key. To define a graph key, select the desired +key to redefine and then specify the axes types for the horizontal and vertical +axes by a pair of comma separated types from the following: + +d Ratio (y / f) +f Fitted values +r Residuals of fit (y - f) +n Nonlinear part of data (linear component of fit subtracted) +x Indepedent variable +y Dependent variable (data being fit) +u User - which for the DTOI package is density above fog |