Software to calculate probit analyses according to Finney (1971), Which is used to illustrate the relation between stimulus and response in toxicological and biological studies.
Illustrate dose-response regression line

• Very easy to input your data. Very easy to calculate it.
  

• Save your data in a file and reopen, reedit and recalculate it any time later.
  

• Calculate any value of LD, LC, LT... with upper and lower limits.
  

• Show dose-response regression line and the actually observed data points.
  

• Show Chi-square of goodness of fit and its probability.
  

• Calculate Correlation coefficient (r)
  

• Give tables and graphics printout.
  

• Make relative studies among several treatments and calculate Index, Resistance ratio and significant intervals.
  

• Through "LdP Line" you have the ability to make control correction according to Abbott's, Henderson-Tilton's, Sun-Shepard's and Schneider-Orelli's formulas.