PCA





choosefile *  example

The total number of columns shouldn’t exceed 100.



choosefile   example




1. View tasks

2. Parameter adjustment

3. Graphics resizing and downloading

1. Function: Draw a PCA scatter chart with tab-separated table data with a header.

2. Application scope: applicable to transcriptome, metabolome, protein, 16S, experimental result collection and other data suitable for drawing PCA graph.

3. Input

1) Matrix file: the file is a two-dimensional matrix, with the name of the first behavior sample and the name of gene/OTU/protein in the first column.


Description of upload file format: the format is as follows. data and data must be separated by tab characters. you can choose to open it in Excel and save it as a. txt file separated by tab key.

Note: The number of input matrix columns is not more than 100. If the file size exceeds 5Mb, local data must be uploaded in the "My Data" section, and then cloud file is selected on the tool page for analysis.


2) Grouping file: it is the grouping information of the first row of the matrix. For example, when the sample name of the first row of the matrix is used, each sample can be divided into several groups or not according to the actual situation. The data of the input file must be separated from the data by tab characters.



3) Set the task number: enter a recognizable number name, or press the default number if not entered.


4. Output

1) Task Output:

The program calculates and plots according to the input file. The waiting time in this process is related to the input file size. Large files with more than 10,000 lines need to wait for 1-5 minutes. Switch tasks to view in the results display.


2) Graph Global Parameters:

The graphic title, font and dot transparency can be modified. Show borders, legends, gridlines, and tick marks can be checked.

3) graphic sample modification:

The size of graphic points, peripheral shape and area transparency can be adjusted (when there are grouped files). Check the display auxiliary line, centroid sample, centroid name, etc. You can also adjust the color matching and point shape of points.

4) picture download:

The height and width of graphics can be adjusted and previewed. SVG and png formats are provided for downloading.

Results Display      (Click " task ID" to view different analysis results)