Read before use
1, check data with precheck (windows version) tools
2, data from excel, copy and paste data into the input frame
3, data from txt, must tab-seperated, copy and paste data into the input frame
4, specieal and non-English characters such as #, <, >, %, (, ), α are not friendly
5, use point as decimal separator, not comma. e.g. 3.14, not 3,14 as pi

Required
input data


Optional
figure size
figure width:
figure height:

fontsize
percentage fontsize：
label fontsize:

colors (6 custom colors. Default colors if more than 6, at most 20 colors）
color1:
color2:
color3:
color4:
color5:
color6:

Legend


Direction


Fontfamily


two layer 2D pie plot

Data contains three rows. The first column is items, other columns are values.
Input 
items	Ann	Bob	Carl	David
day1	1	2	3	4
day2	2	5	4	7
Output

1) How to plot?
1, Prepare data
2, Open with excel, and change into the same format as the example
3, Copy and paste data into the input frame
4, Select parameters
5, Submit and download figure files

2) Why NO figure generated?
Script need strigent input format, please read the instructions and examples carefully.

3) How to cite?
2000+ papers in (Google Scholar)
Tang D, Chen M, Huang X, Zhang G, Zeng L, Zhang G, Wu S, Wang Y. SRplot: A free online platform for data visualization and graphing. PLoS One. 2023 Nov 9;18(11):e0294236. doi: 10.1371/journal.pone.0294236. PMID: 37943830.

4) FAQs