[R] Injecting a column of characters to a matrix of numerics

[Kevin E. Thorpe]

On 10/29/2014 11:41 AM, Steven Yen wrote:
> Hello
> I am designing a regression printout, which works out nicely. Then, I
> try to inject a column of characters to indicate a discrete regressor
> with a dot (.). Then, all numbers seem to turn into characters, in
> quotations. Is there a way to do this right? Below, I show the lines of
> codes before and after. Thanks.
> Steven Yen
>
> ---
> out<-round(cbind(me,se,t,p),digits)
> colnames(out)<-c("estimates","s.e.","|t-value|","p-value")
> rownames(out)<-rownames(me)
> out
>              estimates     s.e. |t-value|  p-value
> (Intercept)  0.223263 0.146167  1.527459 0.127173
> sex          0.049830 0.039612  1.257973 0.208890
> age         -0.070423 0.029539  2.384035 0.017433
> yrmarry      0.015567 0.005298  2.938126 0.003429
> children     0.060525 0.044778  1.351659 0.176993
> religius    -0.053128 0.014413  3.686260 0.000248
> educ         0.003226 0.008453  0.381636 0.702866
> occu         0.003915 0.011860  0.330147 0.741404
> rating      -0.077856 0.014466  5.381925 0.000000
>
> out<-round(cbind(me,se,t,p),digits); out<-cbind(out,disc)
> colnames(out)<-c("estimates","s.e.","|t-value|","p-value","disc")
> rownames(out)<-rownames(me)
>
> (Intercept) "0.223263"  "0.146167" "1.527459" "0.127173" ""
> sex         "0.04983"   "0.039612" "1.257973" "0.20889"  "."
> age         "-0.070423" "0.029539" "2.384035" "0.017433" ""
> yrmarry     "0.015567"  "0.005298" "2.938126" "0.003429" ""
> children    "0.060525"  "0.044778" "1.351659" "0.176993" "."
> religius    "-0.053128" "0.014413" "3.68626"  "0.000248" ""
> educ        "0.003226"  "0.008453" "0.381636" "0.702866" ""
> occu        "0.003915"  "0.01186"  "0.330147" "0.741404" ""
> rating      "-0.077856" "0.014466" "5.381925" "0"        ""

Use data frames instead.

out<-data.frame(round(cbind(me,se,t,p),digits)); out<-cbind(out,disc)
names(out)<-c("estimates","s.e.","|t-value|","p-value","disc")

> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.


-- 
Kevin E. Thorpe
Head of Biostatistics,  Applied Health Research Centre (AHRC)
Li Ka Shing Knowledge Institute of St. Michael's
Assistant Professor, Dalla Lana School of Public Health
University of Toronto
email: kevin.thorpe at utoronto.ca  Tel: 416.864.5776  Fax: 416.864.3016