Table 2.
Changes of length of string and data points during data filtering process.
| Sample | Step 1 bytes/points |
Step 2 bytes/points |
Step 3 bytes/points |
Compression ratio |
|---|---|---|---|---|
| YinYangHuo | 277508/9001 | 57311/8320 | 1228/185 | 0.44%/2.05% |
| Roucongrong | 306359/9751 | 16581/2481 | 713/110 | 0.23%/1.12% |
| MUDANPI | 359105/11250 | 53758/7328 | 2108/291 | 0.58%/2.58% |
Step 1: download raw data from liquid chromatograph; step 2: remove negative data; step 3: find inflexion points and keep one decimal fraction of time data, remove duplicate time data, and redundant no-absorbance data.