Introduction:

The tool takes a peak table file as input, processes the outliers using the capping method. Default boundary is [0, Q3+1.5*IQR]. If the value > (Q3+1.5*IQR), it is identified as an outlier and replaced by the maximum value within the normal range.

Input files:

1.      Peak table file in Tab-delimited text format with the first column as the compound identifier and others as samples.

For example:

AlignID

STDmix_GC_01

STDmix_GC_02

STDmix_GC_03

1

1486892478

561322777

3448620272

Nitrogen dioxide

5492977592

684434115

3265669981

Ethanol, 2-fluoro-

2265686433

4182838129

4365291513

3-Pentanone, 2,2,4,4-tetramethyl-

13390154

12612932

21155307

Hydrazine

14588107

8510918

7224351

Parameter:

1.        Q3: The third quartile (Q3), also known as the "larger quartile", equals to the value ranked at 75% of all values in ascending order.

2.         IQR: InterQuartile Range, equals to |Q3 minus Q1|.

Output files:

1.      'outliers_processed_pkTable.txt', outliers processed peak table file in Tab-delimited txt format.