LR regression tutorial fixes (#6337)
LR regression tutorial fixes (#6337)


szha/mxnet,vikingMei/mxnet,rahul003/mxnet,hesseltuinhof/mxnet,yajiedesign/mxnet,madjam/mxnet,stefanhenneking/mxnet,hpi-xnor/BMXNet,Northrend/mxnet,kevinthesun/mxnet,arikpoz/mxnet,mbaijal/incubator-mxnet,LinkHS/incubator-mxnet,Mega-DatA-Lab/mxnet,yuruofeifei/mxnet,sergeykolychev/mxnet,smolix/incubator-mxnet,larroy/mxnet,ykim362/mxnet,ykim362/mxnet,hotpxl/mxnet,formath/mxnet,hpi-xnor/BMXNet,ZihengJiang/mxnet,kevinthesun/mxnet,ykim362/mxnet,sxjscience/mxnet,tlby/mxnet,jamesliu/mxnet,navrasio/mxnet,antoan2/incubator-mxnet,jamesliu/mxnet,jiajiechen/mxnet,weleen/mxnet,sergeykolychev/mxnet,precedenceguo/mxnet,Northrend/mxnet,arikpoz/mxnet,kkk669/mxnet,yajiedesign/mxnet,coder-james/mxnet,indhub/mxnet,TuSimple/mxnet,danithaca/mxnet,luoyetx/mxnet,jermainewang/mxnet,crazy-cat/incubator-mxnet,jennyzhang0215/incubator-mxnet,Mega-DatA-Lab/mxnet,dmlc/mxnet,smolix/incubator-mxnet,TuSimple/mxnet,precedenceguo/mxnet,ykim362/mxnet,luoyetx/mxnet,reminisce/mxnet,piiswrong/mxnet,saurabh3949/mxnet,piiswrong/mxnet,luoyetx/mxnet,navrasio/mxnet,mbaijal/incubator-mxnet,xcgoner/dist-mxnet,tlby/mxnet,gautamkmr/incubator-mxnet,jennyzhang0215/incubator-mxnet,Ldpe2G/mxnet,zhreshold/mxnet,tornadomeet/mxnet,saurabh3949/mxnet,tlby/mxnet,EvanzzzZ/mxnet,EvanzzzZ/mxnet,nicklhy/mxnet,rahul003/mxnet,gautamkmr/incubator-mxnet,thirdwing/mxnet,Northrend/mxnet,jermainewang/mxnet,crazy-cat/incubator-mxnet,DR08/mxnet,TuSimple/mxnet,hotpxl/mxnet,DR08/mxnet,Northrend/mxnet,jamesliu/mxnet,thirdwing/mxnet,ForkedReposBak/mxnet,weleen/mxnet,stefanhenneking/mxnet,mbaijal/incubator-mxnet,weleen/mxnet,hesseltuinhof/mxnet,DickJC123/mxnet,smolix/incubator-mxnet,coder-james/mxnet,nicklhy/mxnet,dmlc/mxnet,ZihengJiang/mxnet,vikingMei/mxnet,stefanhenneking/mxnet,yuruofeifei/mxnet,weleen/mxnet,stefanhenneking/mxnet,reminisce/mxnet,tornadomeet/mxnet,madjam/mxnet,eric-haibin-lin/mxnet,kevinthesun/mxnet,sergeykolychev/mxnet,tornadomeet/mxnet,szha/mxnet,piiswrong/mxnet,jermainewang/mxnet,vikingMei/mxnet,Mega-DatA-Lab/mxnet,saurabh3949/mxnet,apaleyes/mxnet,TuSimple/mxnet,reminisce/mxnet,yuruofeifei/mxnet,arikpoz/mxnet,lxn2/mxnet,hotpxl/mxnet,xcgoner/dist-mxnet,stefanhenneking/mxnet,kkk669/mxnet,wangyum/mxnet,precedenceguo/mxnet,hesseltuinhof/mxnet,ForkedReposBak/mxnet,gautamkmr/incubator-mxnet,danithaca/mxnet,ZihengJiang/mxnet,tlby/mxnet,yuruofeifei/mxnet,piiswrong/mxnet,LinkHS/incubator-mxnet,madjam/mxnet,CodingCat/mxnet,nicklhy/mxnet,eric-haibin-lin/mxnet,arikpoz/mxnet,piiswrong/mxnet,madjam/mxnet,eric-haibin-lin/mxnet,EvanzzzZ/mxnet,larroy/mxnet,ForkedReposBak/mxnet,ShownX/incubator-mxnet,lxn2/mxnet,szha/mxnet,hesseltuinhof/mxnet,reminisce/mxnet,gautamkmr/incubator-mxnet,DR08/mxnet,piiswrong/mxnet,DR08/mxnet,larroy/mxnet,leezu/mxnet,arank/mxnet,vikingMei/mxnet,rahul003/mxnet,Northrend/mxnet,jamesliu/mxnet,larroy/mxnet,sxjscience/mxnet,solin319/incubator-mxnet,ShownX/incubator-mxnet,dmlc/mxnet,stefanhenneking/mxnet,hesseltuinhof/mxnet,ykim362/mxnet,solin319/incubator-mxnet,LinkHS/incubator-mxnet,mbaijal/incubator-mxnet,xcgoner/dist-mxnet,lxn2/mxnet,apaleyes/mxnet,solin319/incubator-mxnet,Mega-DatA-Lab/mxnet,indhub/mxnet,leezu/mxnet,Northrend/mxnet,Northrend/mxnet,LinkHS/incubator-mxnet,ykim362/mxnet,pluskid/mxnet,apache/incubator-mxnet,ForkedReposBak/mxnet,jiajiechen/mxnet,ptrendx/mxnet,arank/mxnet,arank/mxnet,yajiedesign/mxnet,sergeykolychev/mxnet,Ldpe2G/mxnet,kkk669/mxnet,CodingCat/mxnet,sergeykolychev/mxnet,Prasad9/incubator-mxnet,lxn2/mxnet,danithaca/mxnet,hpi-xnor/BMXNet,xcgoner/dist-mxnet,Ldpe2G/mxnet,navrasio/mxnet,gautamkmr/incubator-mxnet,coder-james/mxnet,yuruofeifei/mxnet,tlby/mxnet,wangyum/mxnet,ptrendx/mxnet,xcgoner/dist-mxnet,szha/mxnet,lxn2/mxnet,fullfanta/mxnet,precedenceguo/mxnet,zhreshold/mxnet,indhub/mxnet,thirdwing/mxnet,ForkedReposBak/mxnet,ptrendx/mxnet,hotpxl/mxnet,hotpxl/mxnet,jennyzhang0215/incubator-mxnet,wangyum/mxnet,precedenceguo/mxnet,jermainewang/mxnet,hpi-xnor/BMXNet,arikpoz/mxnet,hotpxl/mxnet,indhub/mxnet,LinkHS/incubator-mxnet,vikingMei/mxnet,yajiedesign/mxnet,arikpoz/mxnet,reminisce/mxnet,formath/mxnet,tlby/mxnet,ShownX/incubator-mxnet,EvanzzzZ/mxnet,CodingCat/mxnet,tornadomeet/mxnet,dmlc/mxnet,precedenceguo/mxnet,LinkHS/incubator-mxnet,solin319/incubator-mxnet,wangyum/mxnet,Mega-DatA-Lab/mxnet,saurabh3949/mxnet,fullfanta/mxnet,ptrendx/mxnet,indhub/mxnet,tornadomeet/mxnet,dmlc/mxnet,ptrendx/mxnet,jermainewang/mxnet,luoyetx/mxnet,fullfanta/mxnet,nicklhy/mxnet,dmlc/mxnet,eric-haibin-lin/mxnet,jamesliu/mxnet,TuSimple/mxnet,smolix/incubator-mxnet,fullfanta/mxnet,leezu/mxnet,danithaca/mxnet,stefanhenneking/mxnet,madjam/mxnet,DR08/mxnet,ZihengJiang/mxnet,danithaca/mxnet,jermainewang/mxnet,leezu/mxnet,solin319/incubator-mxnet,pluskid/mxnet,apaleyes/mxnet,EvanzzzZ/mxnet,xcgoner/dist-mxnet,arikpoz/mxnet,piiswrong/mxnet,saurabh3949/mxnet,DickJC123/mxnet,dmlc/mxnet,kevinthesun/mxnet,lxn2/mxnet,nicklhy/mxnet,arank/mxnet,rahul003/mxnet,EvanzzzZ/mxnet,stefanhenneking/mxnet,eric-haibin-lin/mxnet,jiajiechen/mxnet,ZihengJiang/mxnet,ShownX/incubator-mxnet,wangyum/mxnet,wangyum/mxnet,ShownX/incubator-mxnet,crazy-cat/incubator-mxnet,larroy/mxnet,kevinthesun/mxnet,saurabh3949/mxnet,pluskid/mxnet,ykim362/mxnet,DickJC123/mxnet,arank/mxnet,rahul003/mxnet,precedenceguo/mxnet,kevinthesun/mxnet,kkk669/mxnet,antoan2/incubator-mxnet,madjam/mxnet,weleen/mxnet,thirdwing/mxnet,luoyetx/mxnet,sxjscience/mxnet,lxn2/mxnet,yajiedesign/mxnet,jamesliu/mxnet,formath/mxnet,xcgoner/dist-mxnet,zhreshold/mxnet,saurabh3949/mxnet,vikingMei/mxnet,rahul003/mxnet,navrasio/mxnet,yuruofeifei/mxnet,zhreshold/mxnet,Ldpe2G/mxnet,tornadomeet/mxnet,pluskid/mxnet,formath/mxnet,navrasio/mxnet,yajiedesign/mxnet,leezu/mxnet,eric-haibin-lin/mxnet,jennyzhang0215/incubator-mxnet,Prasad9/incubator-mxnet,mbaijal/incubator-mxnet,reminisce/mxnet,coder-james/mxnet,crazy-cat/incubator-mxnet,jiajiechen/mxnet,xcgoner/dist-mxnet,fullfanta/mxnet,danithaca/mxnet,formath/mxnet,leezu/mxnet,apaleyes/mxnet,zhreshold/mxnet,tlby/mxnet,arikpoz/mxnet,CodingCat/mxnet,ZihengJiang/mxnet,xcgoner/dist-mxnet,DickJC123/mxnet,larroy/mxnet,szha/mxnet,solin319/incubator-mxnet,kkk669/mxnet,mbaijal/incubator-mxnet,leezu/mxnet,ptrendx/mxnet,szha/mxnet,antoan2/incubator-mxnet,arank/mxnet,indhub/mxnet,hesseltuinhof/mxnet,coder-james/mxnet,jermainewang/mxnet,kkk669/mxnet,jermainewang/mxnet,gautamkmr/incubator-mxnet,ForkedReposBak/mxnet,jamesliu/mxnet,arikpoz/mxnet,nicklhy/mxnet,kevinthesun/mxnet,TuSimple/mxnet,wangyum/mxnet,kevinthesun/mxnet,coder-james/mxnet,eric-haibin-lin/mxnet,thirdwing/mxnet,piiswrong/mxnet,rahul003/mxnet,antoan2/incubator-mxnet,Prasad9/incubator-mxnet,szha/mxnet,zhreshold/mxnet,coder-james/mxnet,apaleyes/mxnet,DR08/mxnet,madjam/mxnet,yuruofeifei/mxnet,hesseltuinhof/mxnet,danithaca/mxnet,vikingMei/mxnet,lxn2/mxnet,formath/mxnet,rahul003/mxnet,szha/mxnet,leezu/mxnet,ykim362/mxnet,smolix/incubator-mxnet,antoan2/incubator-mxnet,fullfanta/mxnet,precedenceguo/mxnet,jiajiechen/mxnet,Ldpe2G/mxnet,larroy/mxnet,hotpxl/mxnet,saurabh3949/mxnet,madjam/mxnet,ZihengJiang/mxnet,formath/mxnet,navrasio/mxnet,sergeykolychev/mxnet,sergeykolychev/mxnet,CodingCat/mxnet,crazy-cat/incubator-mxnet,indhub/mxnet,Prasad9/incubator-mxnet,antoan2/incubator-mxnet,reminisce/mxnet,smolix/incubator-mxnet,tlby/mxnet,Prasad9/incubator-mxnet,jennyzhang0215/incubator-mxnet,Ldpe2G/mxnet,sxjscience/mxnet,Mega-DatA-Lab/mxnet,coder-james/mxnet,thirdwing/mxnet,antoan2/incubator-mxnet,kkk669/mxnet,smolix/incubator-mxnet,CodingCat/mxnet,crazy-cat/incubator-mxnet,EvanzzzZ/mxnet,luoyetx/mxnet,navrasio/mxnet,tornadomeet/mxnet,wangyum/mxnet,jamesliu/mxnet,larroy/mxnet,apache/incubator-mxnet,luoyetx/mxnet,mbaijal/incubator-mxnet,yajiedesign/mxnet,sxjscience/mxnet,ShownX/incubator-mxnet,apaleyes/mxnet,Mega-DatA-Lab/mxnet,yajiedesign/mxnet,zhreshold/mxnet,yajiedesign/mxnet,pluskid/mxnet,rahul003/mxnet,dmlc/mxnet,indhub/mxnet,ZihengJiang/mxnet,ptrendx/mxnet,reminisce/mxnet,apaleyes/mxnet,Ldpe2G/mxnet,apache/incubator-mxnet,vikingMei/mxnet,eric-haibin-lin/mxnet,sergeykolychev/mxnet,jermainewang/mxnet,danithaca/mxnet,coder-james/mxnet,LinkHS/incubator-mxnet,antoan2/incubator-mxnet,zhreshold/mxnet,jiajiechen/mxnet,hpi-xnor/BMXNet,gautamkmr/incubator-mxnet,sxjscience/mxnet,Ldpe2G/mxnet,hpi-xnor/BMXNet,Prasad9/incubator-mxnet,hpi-xnor/BMXNet,jennyzhang0215/incubator-mxnet,Mega-DatA-Lab/mxnet,formath/mxnet,pluskid/mxnet,navrasio/mxnet,zhreshold/mxnet,reminisce/mxnet,weleen/mxnet,crazy-cat/incubator-mxnet,DR08/mxnet,ForkedReposBak/mxnet,DR08/mxnet,arank/mxnet,hesseltuinhof/mxnet,mbaijal/incubator-mxnet,sergeykolychev/mxnet,yuruofeifei/mxnet,CodingCat/mxnet,tlby/mxnet,danithaca/mxnet,crazy-cat/incubator-mxnet,TuSimple/mxnet,thirdwing/mxnet,lxn2/mxnet,tornadomeet/mxnet,thirdwing/mxnet,kkk669/mxnet,reminisce/mxnet,sxjscience/mxnet,TuSimple/mxnet,LinkHS/incubator-mxnet,jennyzhang0215/incubator-mxnet,madjam/mxnet,yuruofeifei/mxnet,hotpxl/mxnet,fullfanta/mxnet,Northrend/mxnet,smolix/incubator-mxnet,jamesliu/mxnet,weleen/mxnet,tlby/mxnet,formath/mxnet,szha/mxnet,luoyetx/mxnet,Prasad9/incubator-mxnet,weleen/mxnet,jiajiechen/mxnet,Northrend/mxnet,EvanzzzZ/mxnet,apache/incubator-mxnet,ShownX/incubator-mxnet,jiajiechen/mxnet,TuSimple/mxnet,piiswrong/mxnet,ZihengJiang/mxnet,nicklhy/mxnet,kkk669/mxnet,Mega-DatA-Lab/mxnet,precedenceguo/mxnet,weleen/mxnet,eric-haibin-lin/mxnet,smolix/incubator-mxnet,Ldpe2G/mxnet,larroy/mxnet,nicklhy/mxnet,pluskid/mxnet,CodingCat/mxnet,pluskid/mxnet,dmlc/mxnet,vikingMei/mxnet,hesseltuinhof/mxnet,crazy-cat/incubator-mxnet,solin319/incubator-mxnet,ptrendx/mxnet,hotpxl/mxnet,LinkHS/incubator-mxnet,ForkedReposBak/mxnet,jennyzhang0215/incubator-mxnet,fullfanta/mxnet,navrasio/mxnet,fullfanta/mxnet,ForkedReposBak/mxnet,mbaijal/incubator-mxnet,DR08/mxnet,TuSimple/mxnet,wangyum/mxnet,saurabh3949/mxnet,gautamkmr/incubator-mxnet,thirdwing/mxnet,nicklhy/mxnet,pluskid/mxnet,antoan2/incubator-mxnet,EvanzzzZ/mxnet,Prasad9/incubator-mxnet,kevinthesun/mxnet,CodingCat/mxnet,sxjscience/mxnet,gautamkmr/incubator-mxnet,tornadomeet/mxnet,arank/mxnet,stefanhenneking/mxnet,ptrendx/mxnet,solin319/incubator-mxnet,arank/mxnet,hpi-xnor/BMXNet,luoyetx/mxnet,sxjscience/mxnet,ShownX/incubator-mxnet,apaleyes/mxnet,jiajiechen/mxnet,hpi-xnor/BMXNet,apaleyes/mxnet,Prasad9/incubator-mxnet,ShownX/incubator-mxnet,indhub/mxnet,jennyzhang0215/incubator-mxnet,ptrendx/mxnet,ykim362/mxnet,leezu/mxnet,solin319/incubator-mxnet