neural net

dada

Thu, Dec 13, 2012 3:33 AM

Thanks for your reply. I have compared my data with some other which works
and I cannot see the difference... 

The structure of my data is shown below:

'data.frame':   19 obs. of  7 variables:
 $ drug    : Factor w/ 19 levels "A","B","C","D",..: 1 2 3 4 5 6 7 8 9 10
...
 $ param1  : int  111 347 335 477 863 737 390 209 376 262 ...
 $ param2 : int  15 13 9 37 24 28 63 93 72 16 ...
 $ param3     : int  125 280 119 75 180 150 167 200 201 205 ...
 $ param4     : int  40 55 89 2 10 15 12 48 45 49 ...
 $ param5     : num  0.5 3 -40 0 5 6 0 45 -60 25 ...
 $ Class   : int  1 2 1 1 2 2 3 3 3 3 ...

drug        param1         param2         param3             param4             
param5             Class      
 A      : 1   Min.   :111.0   Min.   : 2.0   Min.   : 75.0   Min.   :-20.00  
Min.   :-60.000   Min.   :1.000  
 B      : 1   1st Qu.:253.5   1st Qu.:15.0   1st Qu.:132.5   1st Qu.: 12.00  
1st Qu.:  0.000   1st Qu.:1.000  
 C      : 1   Median :335.0   Median :28.0   Median :164.0   Median : 40.00  
Median :  6.000   Median :2.000  
 D      : 1   Mean   :383.0   Mean   :33.0   Mean   :166.0   Mean   : 35.26  
Mean   :  4.447   Mean   :1.895  
 E      : 1   3rd Qu.:433.5   3rd Qu.:42.5   3rd Qu.:200.5   3rd Qu.: 54.00  
3rd Qu.: 20.500   3rd Qu.:2.000  
 F      : 1   Max.   :863.0   Max.   :93.0   Max.   :280.0   Max.   : 89.00  
Max.   : 45.000   Max.   :3.000  
 (Other):13                                                            

The structure of the example data which worked is shown below:

'data.frame':   248 obs. of  8 variables:
 $ education     : Factor w/ 3 levels "0-5yrs","6-11yrs",..: 1 1 1 1 2 2 2 2
2 2 ...
 $ age           : num  26 42 39 34 35 36 23 32 21 28 ...
 $ parity        : num  6 1 6 4 3 4 1 2 1 2 ...
 $ induced       : num  1 1 2 2 1 2 0 0 0 0 ...
 $ case          : num  1 1 1 1 1 1 1 1 1 1 ...
 $ spontaneous   : num  2 0 0 0 1 1 0 0 1 0 ...
 $ stratum       : int  1 2 3 4 5 6 7 8 9 10 ...
 $ pooled.stratum: num  3 1 4 2 32 36 6 22 5 19 ...

education        age            parity         induced            case        
spontaneous        stratum      pooled.stratum 
 0-5yrs : 12   Min.   :21.00   Min.   :1.000   Min.   :0.0000   Min.  
:0.0000   Min.   :0.0000   Min.   : 1.00   Min.   : 1.00  
 6-11yrs:120   1st Qu.:28.00   1st Qu.:1.000   1st Qu.:0.0000   1st
Qu.:0.0000   1st Qu.:0.0000   1st Qu.:21.00   1st Qu.:19.00  
 12+ yrs:116   Median :31.00   Median :2.000   Median :0.0000   Median
:0.0000   Median :0.0000   Median :42.00   Median :36.00  
               Mean   :31.50   Mean   :2.093   Mean   :0.5726   Mean  
:0.3347   Mean   :0.5766   Mean   :41.87   Mean   :33.58  
               3rd Qu.:35.25   3rd Qu.:3.000   3rd Qu.:1.0000   3rd
Qu.:1.0000   3rd Qu.:1.0000   3rd Qu.:62.25   3rd Qu.:48.25  
               Max.   :44.00   Max.   :6.000   Max.   :2.0000   Max.  
:1.0000   Max.   :2.0000   Max.   :83.00   Max.   :63.00  

So still not sure how to solve the problem .... 




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