Changes in version 1.99.0 (2019-04-24)                 

    o   The following changes have been made primarily in this release:

    o   1. Add a confidence interval for the curve

    o   2. Modify GuitarcoordinateTXDB to remove the generation of the bin interval of the guitar coordinate system.

    o   3. Sampling the input site information file.

    o   4. Change the coordinate  structure and normalize the abscissa of the coordinate system to the interval 0~1.

    o   5. Change the composition and calculation of weight in the density drawing method.

    o   6. Open various parameters in the drawing process to the user for selection.