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Table 1 Summary of PCA evaluation

From: Untargeted LC–MS/MS analysis reveals metabolomics feature of osteosarcoma stem cell response to methotrexate

Title

Ion model

A

R2X (cum)

Q2 (cum)

QC

Positive

6

0.808

0.757

QC

Negative

8

0.803

0.7

1A vs. 1B

Positive

2

0.721

0.579

1A vs. 1B

Negative

2

0.734

0.57

2A vs. 2B

Positive

2

0.764

0.641

2A vs. 2B

Negative

2

0.693

0.495

3A vs. 3B

Positive

2

0.815

0.706

3A vs. 3B

Negative

2

0.643

0.423

4A vs. 4B

Positive

2

0.671

0.466

4A vs. 4B

Negative

2

0.721

0.54

  1. QC quality control, PCA principal component analysis
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Cancer Cell International

ISSN: 1475-2867

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