On Dec 14, 2012, at 2:18 PM, Muhuri, Pradip (SAMHSA/CBHSQ) wrote:

> Hi David,
> 
> Thank you so much for helping me with the code.
> 
> Your suggested code gives me the following results. Please see below. I don't 
> understand why I am getting two  blocks of prints (5 columns, and then 7 
> columns), with some columns repeated.

I am not sure why you think we will be able to answer this question. Your data 
is on your drive and you have not provided it in a form that would allow one to 
assist any further than the apparently inaccurate guesses already offered. You 
should consult this function:

?dput   # use this with:  y0410_1825_mf_alc

-- 
David.

> 
> Regards,
> 
> Pradip
> #############################
> 
>> cbind(  y0410_1825_mf_alc[ 1:2],  
> +         printCoefmat(y0410_1825_mf_alc[ -(1:2) ], has.Pvalue=TRUE, 
> eps.Pvalue=0.0001)
> + )
>   mean_level1 mean_level2 rel_diff p_mean cohens_d  
> 1       18.744      11.911    0.574   0.00    0.175  
> 2       18.744      14.455    0.297   0.00    0.110  
> 3       18.744      13.540    0.384   0.00    0.133  
> 4       18.744       6.002    2.123   0.00    0.333  
> 5       18.744       5.834    2.213   0.00    0.349  
> 6       18.744       7.933    1.363   0.00    0.279  
> 7       18.744      10.849    0.728   0.00    0.203  
> 8       18.744       7.130    1.629   0.00    0.298  
> 9       18.744       9.720    0.928   0.00    0.242  
> 10      18.744       9.600    0.952   0.00    0.242  
> 11      18.744      16.135    0.162   0.17    0.067 .
> 12      18.744          NA       NA     NA       NA  
> 13      18.744      10.465    0.791   0.00    0.213  
> 14      18.744      15.149    0.237   0.02    0.092 .
> ---
> Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 
>   contrast_level1 contrast_level2 mean_level1 mean_level2 rel_diff    p_mean 
> cohens_d
> 1               wh            2+hi        18.7       11.91    0.574  1.64e-05 
>   0.1753
> 2               wh            2+rc        18.7       14.46    0.297  9.24e-06 
>   0.1101
> 3               wh            aian        18.7       13.54    0.384  9.01e-05 
>   0.1335
> 4               wh            asan        18.7        6.00    2.123 2.20e-119 
>   0.3326
> 5               wh            blck        18.7        5.83    2.213  0.00e+00 
>   0.3490
> 6               wh            csam        18.7        7.93    1.363  1.27e-47 
>   0.2793
> 7               wh             cub        18.7       10.85    0.728  6.12e-08 
>   0.2025
> 8               wh            dmcn        18.7        7.13    1.629  1.59e-15 
>   0.2981
> 9               wh            hisp        18.7        9.72    0.928 3.27e-125 
>   0.2420
> 10              wh             mex        18.7        9.60    0.952 8.81e-103 
>   0.2420
> 11              wh            nhpi        18.7       16.14    0.162  1.74e-01 
>   0.0669
> 12              wh            othh        18.7          NA       NA        NA 
>       NA
> 13              wh              pr        18.7       10.47    0.791  3.64e-23 
>   0.2131
> 14              wh             spn        18.7       15.15    0.237  1.58e-02 
>   0.0922
> 
> Pradip K. Muhuri, PhD
> Statistician
> Substance Abuse & Mental Health Services Administration
> The Center for Behavioral Health Statistics and Quality
> Division of Population Surveys
> 1 Choke Cherry Road, Room 2-1071
> Rockville, MD 20857
>  
> Tel: 240-276-1070
> Fax: 240-276-1260
> e-mail: pradip.muh...@samhsa.hhs.gov
>  
> The Center for Behavioral Health Statistics and Quality your feedback.  
> Please click on the following link to complete a brief customer survey:   
> http://cbhsqsurvey.samhsa.gov
> 
> -----Original Message-----
> From: David Winsemius [mailto:dwinsem...@comcast.net] 
> Sent: Friday, December 14, 2012 3:22 PM
> To: Muhuri, Pradip (SAMHSA/CBHSQ)
> Cc: R help
> Subject: Re: [R] format.pval () and printCoefmat ()
> 
> 
> On Dec 14, 2012, at 11:48 AM, Muhuri, Pradip (SAMHSA/CBHSQ) wrote:
> 
>> Hi List,
>> 
>> My goal is to force R not to print in scientific notation in the sixth 
>> column (rel_diff - for the p-value) of my data frame (not a matrix).
>> 
>> I have used the format.pval () and printCoefmat () functions on the data 
>> frame. The R script is appended below.
>> 
>> This issue is that use of the format.pval () and printCoefmat () functions 
>> on the data frame gives me the desired results, but coerces the character 
>> string into NAs for the two character variables, because my object is a data 
>> frame, not a matrix. Please see the first output below: contrast_level1 
>> contrast_level2).
>> 
>> Is there a way I could have avoid printing the NAs in the character fields
> 
> They are probably factor columns.
> 
>> when using the format.pval () and printCoefmat () on the data frame?
>> 
>> I would appreciate receiving your help.
>> 
>> Thanks,
>> 
>> Pradip
>> setwd ("F:/PR1/R_PR1")
>> 
>> load (file = "sigtests_overall_withid.rdata")
>> 
>> #format.pval(tt$p.value, eps=0.0001)
>> 
>> # keep only selected columns from the above data frame
>> keep_cols1 <- c("contrast_level1", "contrast_level2","mean_level1",
>>               "mean_level2", "rel_diff",
>>                 "p_mean", "cohens_d")
>> 
>> #subset the data frame
>> y0410_1825_mf_alc <- subset (sigtests_overall_withid,
>>                         years=="0410" & age_group=="1825"
>>                         & gender_group=="all" & drug=="alc"
>>                         & contrast_level1=="wh",
>>                         select=keep_cols1)
>> #change the row.names
>> row.names (y0410_1825_mf_alc)= 1:dim(y0410_1825_mf_alc)[1]
>> 
>> #force
>> format.pval(y0410_1825_mf_alc$p_mean, eps=0.0001)
> 
> Presumably that call will produce desired results since it is on only one 
> column. (I'm not sure why you think format.pval contributed to your NA 
> output.)
> 
>> 
>> #print the observations from the sub-data frame
>> options (width=120,digits=3 )
>> #y0410_1825_mf_alc
>> 
>> printCoefmat(y0410_1825_mf_alc, has.Pvalue=TRUE, eps.Pvalue=0.0001)
> 
> Why not use `cbind.data.frame` rather than trying to get `printCoefmat` to do 
> something it (apparently) wasn't designed to do?
> 
> cbind(  y0410_1825_mf_alc[ 1:2],  
>        printCoefmat(y0410_1825_mf_alc[ -(1:2) ], has.Pvalue=TRUE, 
> eps.Pvalue=0.0001)
>     )
> 
> -- 
> David.
> 
>> 
>> ####################### When format.pval () and printCoefmat () used
>> 
>> 
>> contrast_level1 contrast_level2 mean_level1 mean_level2 rel_diff p_mean 
>> cohens_d
>> 
>> 1               NA              NA      18.744      11.911    0.574   0.00   
>>  0.175
>> 2               NA              NA      18.744      14.455    0.297   0.00   
>>  0.110
>> 3               NA              NA      18.744      13.540    0.384   0.00   
>>  0.133
>> 4               NA              NA      18.744       6.002    2.123   0.00   
>>  0.333
>> 5               NA              NA      18.744       5.834    2.213   0.00   
>>  0.349
>> 6               NA              NA      18.744       7.933    1.363   0.00   
>>  0.279
>> 7               NA              NA      18.744      10.849    0.728   0.00   
>>  0.203
>> 8               NA              NA      18.744       7.130    1.629   0.00   
>>  0.298
>> 9               NA              NA      18.744       9.720    0.928   0.00   
>>  0.242
>> 10              NA              NA      18.744       9.600    0.952   0.00   
>>  0.242
>> 11              NA              NA      18.744      16.135    0.162   0.17   
>>  0.067 .
>> 12              NA              NA      18.744          NA       NA     NA   
>>     NA
>> 13              NA              NA      18.744      10.465    0.791   0.00   
>>  0.213
>> 14              NA              NA      18.744      15.149    0.237   0.02   
>>  0.092 .
>> ---
>> Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
>> Warning messages:
>> 1: In data.matrix(x) : NAs introduced by coercion
>> 2: In data.matrix(x) : NAs introduced by coercion
>> 
>> ####################### When format.pval () and printCoefmat () not used
>> 
>> contrast_level1 contrast_level2 mean_level1 mean_level2 rel_diff    p_mean 
>> cohens_d
>> 1               wh            2+hi        18.7       11.91    0.574  
>> 1.64e-05   0.1753
>> 2               wh            2+rc        18.7       14.46    0.297  
>> 9.24e-06   0.1101
>> 3               wh            aian        18.7       13.54    0.384  
>> 9.01e-05   0.1335
>> 4               wh            asan        18.7        6.00    2.123 
>> 2.20e-119   0.3326
>> 5               wh            blck        18.7        5.83    2.213  
>> 0.00e+00   0.3490
>> 6               wh            csam        18.7        7.93    1.363  
>> 1.27e-47   0.2793
>> 7               wh             cub        18.7       10.85    0.728  
>> 6.12e-08   0.2025
>> 8               wh            dmcn        18.7        7.13    1.629  
>> 1.59e-15   0.2981
>> 9               wh            hisp        18.7        9.72    0.928 
>> 3.27e-125   0.2420
>> 10              wh             mex        18.7        9.60    0.952 
>> 8.81e-103   0.2420
>> 11              wh            nhpi        18.7       16.14    0.162  
>> 1.74e-01   0.0669
>> 12              wh            othh        18.7          NA       NA        
>> NA       NA
>> 13              wh              pr        18.7       10.47    0.791  
>> 3.64e-23   0.2131
>> 14              wh             spn        18.7       15.15    0.237  
>> 1.58e-02   0.0922
>> 
>> 
>> 
>> Pradip K. Muhuri, PhD
>> 
> 
> 
> David Winsemius
> Alameda, CA, USA
> 

David Winsemius
Alameda, CA, USA

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