python字符串不能转换成浮点_Python / Sklearn-值错误：无法将字符串转换为浮点型...

{'temporalCentroid':{0:'temporalCentroid',1:'1.67324',2:'1.330722',3:'0.786984',4:'1.850129'},'LogSpecCentroid':{0:'LogSpecCentroid',1:'-1.043802',2:'-0.82943',3:'-2.441297',4:'-0.837145'},'LogSpecSpread':{0:'LogSpecSpread',1:'0.747558',2:'1.378373',3:'0.667634',4:'1.238404'},'MFCC1':{0:'MFCC1',1:'3.502117',2:'6.697601',3:'4.011488',4:'0.823614'},'MFCC2':{0:'MFCC2',1:'-9.208897',2:'-9.741549',3:'15.27665',4:'-15.22256'},'MFCC3':{0:'MFCC3',1:'-2.334097',2:'-9.868089',3:'0.802509',4:'-4.978688'},'MFCC4':{0:'MFCC4',1:'-9.013086',2:'0.609091',3:'2.50685',4:'-2.489553'},'MFCC5':{0:'MFCC5',1:'4.847481',2:'1.733307',3:'0.10459',4:'1.066615'},'MFCC6':{0:'MFCC6',1:'-4.770421',2:'-5.381835',3:'-0.260118',4:'-1.020861'},'MFCC7':{0:'MFCC7',1:'-3.362488',2:'-1.261088',3:'0.593255',4:'-2.007349'},'MFCC8':{0:'MFCC8',1:'-9.527529',2:'-3.809237',3:'-0.362287',4:'-8.938164'},'MFCC9':{0:'MFCC9',1:'-9.629579',2:'1.486923',3:'-2.957592',4:'-2.324424'},'MFCC10':{0:'MFCC10',1:'1.848685',2:'-3.938455',3:'-1.884439',4:'-2.535579'},'MFCC11':{0:'MFCC11',1:'-2.311295',2:'-2.159865',3:'-0.827179',4:'0.638553'},'MFCC12':{0:'MFCC12',1:'-7.696675',2:'-3.138412',3:'-0.605056',4:'-1.116259'},'MFCC13':{0:'MFCC13',1:'10.35572',2:'9.095669',3:'6.426399',4:'15.04535'},'MFCCMin':{0:'MFCCMin',1:'-9.629579',2:'-9.868089',3:'-2.957592',4:'-15.22256'},'MFCCMax':{0:'MFCCMax',1:'10.35572',2:'9.095669',3:'15.27665',4:'15.04535'},'MFCCSum':{0:'MFCCSum',1:'-37.300064',2:'-19.675939',3:'22.82507',4:'-23.059305'},'MFCCAvg':{0:'MFCCAvg',1:'-2.869235692',2:'-1.513533769',3:'1.755774615',4:'-1.773792692'},'MFCCStd':{0:'MFCCStd',1:'6.409842944',2:'5.558499123',3:'4.756836281',4:'6.76039911'},'Energy':{0:'Energy',1:'-2.96148',2:'-3.522993',3:'-3.409359',4:'-2.235853'},'ZeroCrossings':{0:'ZeroCrossings',1:'128',2:'188',3:'43',4:'288'},'SpecCentroid':{0:'SpecCentroid',1:'284.0513',2:'414.8489',3:'102.2096',4:'405.1262'},'SpecSpread':{0:'SpecSpread',1:'207.5526',2:'350.7937',3:'53.52178',4:'360.0353'},'Rolloff':{0:'Rolloff',1:'263.7817',2:'783.2703',3:'129.1992',4:'912.4695'},'Flux':{0:'Flux',1:'0',2:'0',3:'0',4:'0'},'bandsCoefMin':{0:'bandsCoefMin',1:'-0.224957',2:'-0.247903',3:'-0.22283',4:'-0.232534'},'bandsCoefMax':{0:'bandsCoefMax',1:'-0.074945',2:'-0.113654',3:'-0.062254',4:'-0.080883'},'bandsCoefSum1':{0:'bandsCoefSum1',1:'-5.575428',2:'-5.524777',3:'-5.511125',4:'-5.532536'},'bandsCoefAvg':{0:'bandsCoefAvg',1:'-0.168952364',2:'-0.167417485',3:'-0.167003788',4:'-0.167652606'},'bandsCoefStd':{0:'bandsCoefStd',1:'0.042580181',2:'0.048429973',3:'0.049881374',4:'0.0475839'},'bandsCoefSum':{0:'bandsCoefSum',1:'382.5963',2:'360.9232',3:'384.3541',4:'368.9903'},'prjmin':{0:'prjmin',1:'-0.999362',2:'-0.999719',3:'-0.988315',4:'-0.999421'},'prjmax':{0:'prjmax',1:'0.023797',2:'0.009596',3:'0.028112',4:'0.024612'},'prjSum':{0:'prjSum',1:'-0.99911',2:'-1.006792',3:'-1.084054',4:'-1.002478'},'prjAvg':{0:'prjAvg',1:'-0.030276061',2:'-0.030508848',3:'-0.032850121',4:'-0.030378121'},'prjStd':{0:'prjStd',1:'0.174082468',2:'0.174040569',3:'0.173600498',4:'0.174064118'},'LogAttackTime':{0:'LogAttackTime',1:'0.365883',2:'-0.35427',3:'-0.669283',4:'-0.026181'},'HamoPkMin':{0:'HamoPkMin',1:'0',2:'0',3:'0',4:'0'},'HamoPkMax':{0:'HamoPkMax',1:'1.025473',2:'1.05761',3:'0.986766',4:'0.957316'},'HamoPkSum':{0:'HamoPkSum',1:'14.391206',2:'20.306125',3:'9.727358',4:'14.772449'},'HamoPkAvg':{0:'HamoPkAvg',1:'0.513971643',2:'0.72521875',3:'0.347405643',4:'0.527587464'},'HamoPkStd':{0:'HamoPkStd',1:'0.376622124',2:'0.325929503',3:'0.388971641',4:'0.381693476'},'class1':{0:'class1',1:'aerophone',2:'aerophone',3:'chordophone',4:'aerophone'},'class2':{0:'class2',1:'aero_single-reed',2:'aero_lip-vibrated',3:'chrd_simple',4:'aero_single-reed'},'mix1_instrument':{0:'mix1_instrument',1:'Saxophone',2:'Trumpet',3:'Piano',4:'Clarinet'}}