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Fit a group-lasso (one group per response) to obtain initial estimates of the mr.mash coefficient matrix, optionally predicting on a new design.

Usage

computeCoefficientsGlasso(X, Y, standardize, numThreads, Xnew = NULL)

Arguments

X

Numeric design matrix (samples x variants).

Y

Numeric response matrix (samples x conditions).

standardize

Logical; standardize the columns of X before fitting.

numThreads

Integer; number of threads for the group-lasso fit.

Xnew

Optional new design matrix for prediction; NULL returns in-sample coefficients.

Value

A numeric matrix of initial coefficient estimates (variants x conditions).

Examples

data(eqtlRegionExample)
X <- eqtlRegionExample$X[, 1:30]
Y <- matrix(rnorm(nrow(X) * 3), nrow(X), 3)
computeCoefficientsGlasso(X = X, Y = Y, standardize = TRUE,
  numThreads = 1L, Xnew = NULL)
#> $Bhat
#>       [,1] [,2] [,3]
#>  [1,]    0    0    0
#>  [2,]    0    0    0
#>  [3,]    0    0    0
#>  [4,]    0    0    0
#>  [5,]    0    0    0
#>  [6,]    0    0    0
#>  [7,]    0    0    0
#>  [8,]    0    0    0
#>  [9,]    0    0    0
#> [10,]    0    0    0
#> [11,]    0    0    0
#> [12,]    0    0    0
#> [13,]    0    0    0
#> [14,]    0    0    0
#> [15,]    0    0    0
#> [16,]    0    0    0
#> [17,]    0    0    0
#> [18,]    0    0    0
#> [19,]    0    0    0
#> [20,]    0    0    0
#> [21,]    0    0    0
#> [22,]    0    0    0
#> [23,]    0    0    0
#> [24,]    0    0    0
#> [25,]    0    0    0
#> [26,]    0    0    0
#> [27,]    0    0    0
#> [28,]    0    0    0
#> [29,]    0    0    0
#> [30,]    0    0    0
#> 
#> $Ytrain
#>                [,1]         [,2]          [,3]
#>   [1,] -0.229860857  0.736062443 -0.7860695344
#>   [2,] -0.537452763  0.664990339 -0.3002899838
#>   [3,] -0.440710795 -0.680332955  1.8047594184
#>   [4,]  1.782099088  0.285767969 -2.0674694352
#>   [5,] -0.141434306 -2.381077981 -0.1152439716
#>   [6,]  0.183724044  0.064484535 -3.3463982427
#>   [7,] -0.966399123 -0.613208861 -0.0008497743
#>   [8,] -2.189366752  2.287309076  0.0955797820
#>   [9,]  0.112669559  1.762408887 -1.4361428512
#>  [10,] -0.721204424  2.767010237  1.5306282762
#>  [11,] -0.868276148 -0.934804682 -0.1216373536
#>  [12,]  0.525638135 -1.453273122 -0.4778774073
#>  [13,]  2.304728041  0.759859903 -0.1184103170
#>  [14,]  1.125669987 -0.917739206 -0.5570462592
#>  [15,]  1.374242019 -1.815927300 -0.6129907571
#>  [16,]  2.757950213 -1.058514096 -1.2334755396
#>  [17,]  1.318172793 -0.923125262  1.2048238196
#>  [18,]  0.167542705  1.060363685  0.6180811423
#>  [19,]  0.066829567  0.706132229 -1.3290076363
#>  [20,] -0.799790767 -1.587851766 -0.7583258757
#>  [21,]  1.636904015  0.343792196  1.2616125122
#>  [22,] -1.165470418 -0.220187330  0.9506933445
#>  [23,]  0.787955820 -0.142456618  1.5695419718
#>  [24,] -0.681954235  1.239036904  0.8109116496
#>  [25,] -1.289528922  1.033721908  0.3624077236
#>  [26,] -0.357143496 -1.475380966  0.5258675803
#>  [27,]  0.172217603 -0.695403382 -0.1840675633
#>  [28,]  1.460697300 -0.830049408 -0.1397359423
#>  [29,] -1.062454789  0.665697920 -1.0865690897
#>  [30,]  0.269286521  2.057785691 -0.4849087543
#>  [31,]  0.018172517  0.187159376  0.6763745948
#>  [32,] -0.176545271 -0.136796902 -1.0359815127
#>  [33,]  0.034868903  2.697362862 -1.5157669034
#>  [34,] -0.095602092 -0.154570394 -0.9718434887
#>  [35,]  0.146931385 -0.207160646 -0.3546173787
#>  [36,] -0.285333727  0.777689346 -1.8861393581
#>  [37,]  0.252990498 -0.113468303  1.5488365663
#>  [38,] -0.243102748  1.604393081 -1.4122495209
#>  [39,] -0.522185493 -0.854770090  0.9477811346
#>  [40,] -2.737308291  1.006132265  1.0236207332
#>  [41,]  1.098522096 -1.250384901 -0.7874932054
#>  [42,] -1.786034924  0.213276725  0.2291223270
#>  [43,] -0.526051893 -0.728830070 -0.7142539765
#>  [44,] -0.073735576 -2.335486663  0.3835721815
#>  [45,]  0.713191770  0.427774634 -0.7089357276
#>  [46,] -0.904437303 -0.227509182  0.0261034038
#>  [47,]  0.706532555 -0.382543113  1.6639201790
#>  [48,] -0.832611879  0.105804732 -0.4095778348
#>  [49,] -0.678531278  1.236965641 -0.0061132059
#>  [50,] -0.497896574  1.235497889  0.2848010284
#>  [51,] -1.176033361 -0.778560328  0.8906084895
#>  [52,] -1.126555621 -0.637430198  0.8812326622
#>  [53,]  0.660617279 -1.082380562 -0.4146163234
#>  [54,] -1.326897448 -1.411539296  0.2639895676
#>  [55,] -2.617592708  0.369017829  0.5064654547
#>  [56,] -1.201573910 -1.647816570 -0.4273110163
#>  [57,]  0.951767610  0.011115514  1.5553357897
#>  [58,] -1.213950738 -0.607016387  0.3933102925
#>  [59,] -1.030468268  0.081123616  2.2140814458
#>  [60,] -0.811979520  0.224634931 -1.7281035002
#>  [61,] -0.005429719 -1.396470558  2.3707062904
#>  [62,]  0.122830823  0.375165826  2.3099262222
#>  [63,] -0.575588163  1.483826139  0.4497814099
#>  [64,]  1.085626887  0.232826219  0.5820184807
#>  [65,] -0.682018561  0.099942853  1.1081738819
#>  [66,] -0.114918307  0.780471728 -1.2471531519
#>  [67,] -0.181136534  0.070695634 -0.5030822170
#>  [68,]  1.346329531 -0.231663356  0.2332340290
#>  [69,] -0.019612271 -0.239032021 -0.8191103840
#>  [70,] -0.671969372  0.794679464 -2.1996674696
#>  [71,] -0.587516078 -0.271650337 -0.8029142326
#>  [72,] -0.708010023 -1.364036108  0.3602135472
#>  [73,]  0.079477713 -0.691222725  0.9734978288
#>  [74,]  0.132397734  0.632474508  0.7969702293
#>  [75,] -0.054494682  0.347827635  0.2268940028
#>  [76,]  1.686746516  1.596420380  0.8921623340
#>  [77,]  0.908834118 -0.267696206  2.1262300428
#>  [78,]  0.673219280  0.286781465  0.9937875900
#>  [79,] -0.272982365 -2.349098616  0.4761566594
#>  [80,]  0.439844005  1.489689560 -1.5748424113
#>  [81,] -1.881169744  0.938067211 -1.0759295362
#>  [82,] -0.743109271  1.944237092 -2.3991916415
#>  [83,]  1.025395179  0.564591699 -0.8090417745
#>  [84,]  0.405310137 -1.131184423 -1.2081160615
#>  [85,]  0.090637403  1.181631512  1.0987523905
#>  [86,]  0.265306759  1.327721418 -0.8977027733
#>  [87,]  0.687388460 -1.192242704  0.8004829228
#>  [88,] -1.362092576  0.761135358  0.3182158073
#>  [89,]  1.180537063  1.105962619 -0.2536723496
#>  [90,] -1.779003015  0.756212831  1.7623970608
#>  [91,]  1.006661965 -0.054560078  0.2672623842
#>  [92,] -0.472337037 -1.142895552  1.7765462340
#>  [93,] -0.882024146  0.509871369  0.6948144661
#>  [94,] -0.870933305 -1.479390989  0.0776958487
#>  [95,]  0.823440585 -1.285094395  0.0614350108
#>  [96,]  1.149116104  1.241867544  1.1540302076
#>  [97,]  1.450183909  0.893555471 -0.4756703181
#>  [98,] -0.774728171 -1.137812114  1.3285541022
#>  [99,] -0.467677715 -0.475624406 -0.9976809590
#> [100,] -1.772718659 -0.563764653 -2.2303646675
#> [101,]  0.159238487 -0.361839085  1.0609905975
#> [102,] -0.334629805 -1.118899392 -0.6866584510
#> [103,]  0.282309522 -0.289070459  0.5477755020
#> [104,] -0.428610906  0.994053333  0.4920247668
#> [105,]  1.691745875 -0.977922513  0.0661302605
#> [106,] -0.027613550  1.001417677 -0.5933043912
#> [107,] -1.729908674  0.966693540  0.6094863653
#> [108,]  0.168621544 -0.072470571 -0.3800374915
#> [109,]  1.347726443  0.470998220 -0.5006633704
#> [110,]  1.528870085  0.031745612 -0.1976449331
#> [111,]  0.112928260 -0.003389207 -0.6294497240
#> [112,] -1.296715047  0.913391290  1.4232751547
#> [113,]  0.478314160  1.903170783 -1.5668221876
#> [114,] -1.732522697  0.001073557  0.4683435754
#> [115,]  2.544361175 -1.507577560 -1.1692382883
#> [116,]  0.010220525 -1.537754414 -0.4854110016
#> [117,] -1.068902341  0.213146106  1.2305034404
#> [118,] -1.330495470  0.415590895  0.3467242972
#> [119,] -0.004397303  0.969702324 -0.8057939316
#> [120,]  0.615727691  0.579170755  0.0883783247
#> [121,]  1.508060766  0.274287246 -0.9000928351
#> [122,] -0.775922374 -0.798784730  0.9982222745
#> [123,]  0.934268563  1.496289395 -0.3251110497
#> [124,] -0.787283497 -1.426337060  0.7590950192
#> [125,] -1.892829540  1.267131845 -1.6429523141
#> [126,]  0.022290854  0.636685344  0.7047725297
#> [127,]  0.091412171 -1.022498038  0.3113450960
#> [128,] -1.039636928 -0.144078504 -0.1572749202
#> [129,]  1.135480286 -0.487117712  3.1065543658
#> [130,]  0.127434724 -0.439882538 -0.9213661594
#> [131,] -0.095575658  0.921810476  0.2477788717
#> [132,] -0.897385195  1.266258711  0.5720525498
#> [133,] -0.575685952  0.091757792 -0.9734868579
#> [134,]  0.551929598 -1.162842557  1.3328957474
#> [135,] -0.188938886 -2.260731664 -0.1089672288
#> [136,] -0.734227223 -0.556427072 -0.0193803743
#> [137,]  0.029154134 -0.835438364  1.1603542126
#> [138,]  0.929780681 -0.961900987  1.4918116683
#> [139,]  0.671658269  1.173627424  0.9716645970
#> [140,] -1.028949559 -0.265134633 -0.4161220260
#> [141,]  1.590792523 -0.812855415  0.7198700439
#> [142,]  0.932394070  2.126166059  1.0941844303
#> [143,]  0.636574799  0.311118772  0.1517362570
#> [144,] -1.311974671  0.742908619  0.2820126129
#> [145,] -0.160489145 -0.920152557 -0.3751930635
#> [146,] -2.472189462  1.210788988  0.2336775421
#> [147,] -1.753636552  0.906411777  1.2912170758
#> [148,] -0.670855397 -0.780770106  0.3391002482
#> [149,]  1.087909367 -0.026142913  0.1303777704
#> [150,]  0.155762241 -1.961998301  0.1407764506
#> [151,]  0.197706364  0.172082291 -1.1159056852
#> [152,] -0.729124016 -0.541741841  2.1747890319
#> [153,] -0.053754649 -0.590791564  1.0257107543
#> [154,] -0.984079841 -0.047557631  0.7129470478
#> [155,]  0.223196900  1.006506083  0.1610820412
#> [156,] -1.086448286  0.313857372 -1.3631774496
#> [157,] -2.384853870  0.093507598  0.1045571996
#> [158,] -0.770370884  1.195999382 -0.2530674330
#> [159,]  0.008385502  0.056298739  0.8212878230
#> [160,] -0.398937753 -0.564899373 -0.2751599506
#> [161,] -0.822660608 -1.181371166  1.3550662433
#> [162,] -0.164125437  0.815931074  1.4942745037
#> [163,] -0.820736331 -1.372896174 -0.1870741160
#> [164,]  0.881897159 -0.902761121 -1.5963915477
#> [165,]  0.900527307  1.046102272  0.4195026370
#> [166,] -1.062235277  1.938011929 -0.9618303830
#> [167,] -0.879443591 -1.377193367  0.0633414132
#> [168,] -0.647609787  0.259047350 -0.5650578378
#> [169,] -0.401275505 -0.255686572 -0.2382201086
#> [170,]  1.231251975  1.579018851 -0.0963284195
#> [171,] -0.924896335  0.118257088 -1.0287867255
#> [172,] -1.543024607  0.647633933 -0.5577798012
#> [173,]  0.385904222 -0.114440470  0.6306178368
#> [174,] -0.730252723 -0.337892135 -0.4511032136
#> [175,] -0.076751128 -2.025419104  0.6821665871
#> [176,] -0.648789025  0.109309365  0.3016118517
#> [177,] -0.527459758  0.993893491  1.0150239267
#> [178,]  1.005247271  0.417332055  0.8804386257
#> [179,] -1.169248359  0.204129137 -2.0836605460
#> [180,] -1.565484270 -0.252474911 -1.7331318928
#> [181,] -0.962117718  0.402889808  0.1084774407
#> [182,] -0.155882836 -0.933799444 -0.2093332848
#> [183,]  0.272277292 -0.920773458  0.0258481932
#> [184,] -1.244211159  1.012456682  0.9298953373
#> [185,] -1.807924570  2.180273596  0.8341429062
#> [186,]  0.322649526 -0.717318990  0.6564117467
#> [187,] -1.191569111  0.242847482 -0.7566419179
#> [188,]  1.340588128  0.894537955 -0.3404301772
#> [189,] -0.544418473  0.007513902  1.0511341721
#> [190,] -0.296879325  0.700082654 -0.5441987400
#> [191,] -0.695099975  0.841399748 -0.0489258559
#> [192,]  0.241000538  0.774375313  0.7712807223
#> [193,]  0.254911625  0.035929707 -0.7278059852
#> [194,]  0.438360349 -0.918059437  0.9909974139
#> [195,]  0.737312704  0.018313587  0.1148936038
#> [196,] -0.481764871  0.623386099  1.7085367835
#> [197,] -0.549338390 -1.757335048 -0.4736606243
#> [198,]  0.255677306  1.426252753 -0.2308132306
#> [199,] -1.103186251 -1.143153561  1.4917038424
#> [200,] -2.193412671  0.131286880 -1.3102091829
#> [201,]  1.128767719  0.659486864 -1.1510833125
#> [202,] -0.429824440  0.707677687  2.3634005737
#> [203,] -0.810883652 -0.527815098 -0.1788083769
#> [204,] -0.864916368 -0.577168534  1.5253521119
#> [205,]  1.082645233  0.395043421 -0.1854284698
#> [206,]  1.045596246 -1.664546061  2.2564058662
#> [207,] -1.365866582  0.634922146 -0.1746079438
#> [208,]  1.069897749  0.413407502 -0.5905378142
#> [209,] -0.877445622 -0.255245066 -1.1743088876
#> [210,] -0.693829232  0.054581418 -0.6068659124
#> [211,] -0.608464507  0.265867245  1.3696829754
#> [212,]  0.006859659 -0.251739084 -1.2800472351
#> [213,] -0.411825032  0.707510526 -1.4324548494
#> [214,] -0.662841226 -0.186755052 -0.8529469648
#> [215,]  0.503105954 -1.141442127 -0.3208516121
#> [216,]  0.339495603  1.329809106  0.6382787142
#> [217,] -0.285821138 -0.901385548 -0.1876060556
#> [218,] -0.115318138  0.830521657  0.6587971455
#> [219,] -0.128708677 -1.004161310  1.8158528039
#> [220,]  0.341507407 -0.978173247 -1.3985605396
#> [221,] -0.134605045 -0.431092730  0.6303223070
#> [222,] -1.032460144  0.464681979  0.4925188893
#> [223,] -0.293014829  0.488385165  0.5040222990
#> [224,]  0.646749017  0.257591822  0.0513405209
#> [225,]  1.388175822 -0.294676551 -0.9928243838
#> [226,]  0.071442202 -0.553331347 -0.4413819070
#> [227,] -1.375018206  0.231784047  0.1482601920
#> [228,] -0.595028947 -0.441702536 -0.5493944785
#> [229,] -0.771314572  0.181737739  0.3223157438
#> [230,] -0.158618853 -1.266195415  1.0169327140
#> [231,] -0.672731220 -0.608945997  1.1423932343
#> [232,]  0.507259968 -0.404444735 -0.8034355459
#> [233,] -1.250269879  1.801224310 -0.6352556446
#> [234,] -0.522447163  0.015369640 -1.8547008454
#> [235,] -0.861754234 -0.933024833 -0.2693851502
#> [236,]  0.272337710  0.864570905  0.6902358592
#> [237,]  0.210314512 -0.203649096 -1.3154938106
#> [238,] -0.498271738 -0.704928516  1.0064083744
#> [239,]  0.236939770  1.186188348 -0.0746854368
#> [240,]  1.693154510  0.528031148  0.7758281095
#> [241,]  0.132992597 -0.268907549 -0.9392764456
#> [242,] -0.946212624  1.387482215 -0.8215818020
#> [243,] -0.634225008 -0.323696779  1.0525817034
#> [244,] -1.232221167  0.096813612  0.9319159504
#> [245,] -0.858620554  2.447296198 -0.6145661324
#> [246,] -0.443947957 -1.282835409 -0.4794063487
#> [247,]  1.435180292 -0.644716542 -0.0075961268
#> [248,] -0.745074957  0.066628371  1.0327805117
#> [249,] -0.496692723  0.100254572  0.0642414811
#> [250,]  0.114887212 -1.647511084  0.0512945693
#> [251,] -1.043135565  0.163174898  0.5628962783
#> [252,]  0.444952663  0.285538018 -0.6714506965
#> [253,]  1.374296146  0.515440788  0.1827189233
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