Median center rows
medianCtr.RdTakes a matrix and centers the rows by their median.
Details
The data matrix should have genes as rows and samples as columns. After centering, each row should have median approximately 0.
Examples
x <- matrix(rnorm(200), nrow = 10)
medianCtr(x)
#> [,1] [,2] [,3] [,4] [,5] [,6]
#> [1,] -0.09793309 0.58799843 0.0424421089 1.18515294 0.83682342 -1.7130678
#> [2,] -0.45409894 0.47603032 0.1677346702 -1.67274639 1.43673650 -0.5637549
#> [3,] -1.02320273 -0.01368702 0.0607288366 1.60199252 -0.30570826 0.2290464
#> [4,] -0.19214892 0.29169337 1.1410231933 1.82361371 -0.55488085 1.2842145
#> [5,] 0.19637459 0.33544744 0.4695820350 -2.03747028 -1.32150193 -1.1962742
#> [6,] -0.61266190 0.38236037 -0.4813165832 1.31013347 1.38004265 -0.7924195
#> [7,] -1.11263437 -0.77372633 0.1659866243 2.19527855 -0.24921547 -0.2653995
#> [8,] -0.46653521 1.06254789 -0.2136806017 0.04763128 -0.09470142 0.7354033
#> [9,] -3.20407206 -1.08612945 0.0002276474 0.76702628 0.99352507 -1.6475528
#> [10,] 1.26551093 -0.24841244 -0.1582293933 1.34714926 -1.57694280 0.3742961
#> [,7] [,8] [,9] [,10] [,11]
#> [1,] 0.51260339 -0.0438793522 0.33056862 0.03636754 2.486369793
#> [2,] 0.47035053 -0.4122212895 0.26868850 -0.32969727 -0.002998255
#> [3,] 1.15073162 0.3007383093 0.09232767 -2.03141541 0.149736155
#> [4,] -0.45508284 1.9677002991 -1.45027467 -1.26206737 0.421005321
#> [5,] 0.44017717 -0.1251146244 -0.89553521 0.41215360 -1.368687063
#> [6,] 0.71252317 -0.7087513674 0.18703555 2.82745078 1.674522919
#> [7,] 0.73090598 2.0929744845 -0.68564210 -0.61573254 1.527434870
#> [8,] 0.09442895 0.8353215951 -0.11079297 0.22261531 -0.183474219
#> [9,] 0.53092825 -0.0002276474 0.55884984 -1.97300026 0.438821304
#> [10,] 0.02493341 2.3959319754 0.35925995 -0.89954140 0.780721713
#> [,12] [,13] [,14] [,15] [,16] [,17]
#> [1,] -1.00748599 0.5460622 -0.4301548 -0.36253330 -1.23412707 -0.23376889
#> [2,] 1.23619059 -0.8143477 0.2833737 -0.09818734 0.13612492 -0.21745817
#> [3,] 1.09158223 -0.2800588 -0.1709266 -0.50188553 -1.33172775 0.01368702
#> [4,] -2.25857893 0.4397230 -0.7843014 -0.40096318 -0.33215941 0.93534790
#> [5,] 0.05016143 0.2955891 0.2505113 0.35116546 -2.96431452 -0.05016143
#> [6,] -0.18703555 1.1887199 -0.3371592 -0.25866017 -0.46611134 -0.24323315
#> [7,] -0.43195857 0.9297794 -1.7544891 -0.16598662 -1.49394633 1.02570416
#> [8,] 0.49730680 -1.4516439 0.6171007 2.69948117 -0.04763128 1.21588839
#> [9,] 1.23158814 -1.5264982 -0.9858725 0.18772690 0.79182909 -1.07926520
#> [10,] 0.68847454 -0.4527777 -0.3813487 -1.26836020 -0.37611365 -0.02493341
#> [,18] [,19] [,20]
#> [1,] -0.036367544 0.5331509 -1.2026470
#> [2,] 0.002998255 -0.5374032 1.4333804
#> [3,] -0.312343491 -1.1901040 0.0753716
#> [4,] 0.192148919 -1.0598239 1.2032443
#> [5,] -1.816330766 -1.1678753 0.3393083
#> [6,] 0.713833085 0.6203684 -0.4849150
#> [7,] 1.511566037 0.5581871 0.4653572
#> [8,] -0.791938712 -0.1360084 -1.8278832
#> [9,] -0.024151301 1.3207570 -1.2209984
#> [10,] 0.417401977 0.5703424 -0.7533678
#> attr(,"scaled:center")
#> [1] 0.04986245 -0.39233627 0.04492085 0.16955809 0.18146726 -0.29812035
#> [7] -0.28389104 -0.16700013 0.45613993 -0.43543291