r - How to encode a word report from knitr? -

i built function r markdown creates report in word (in hebrew), report comes out hebrew, symbols , numbers comes out formatted english. makes document inconsistent through entire document.

an example of r markdown code follows:

 ---  title: "3.5.17"   fig.align: "right"  output:     word_document:      reference_docx: desin_word_documents.docx  params:    n: na    konan: na  ---  ```{r example, include=false}     eg_heb <- "שלום עולם"     num_heb <- 123     sym_heb <- "!"  ```  בתכנות נוהגים לתת לתלמידים כמשימה ראשונה להדפיס על המסך את הביטוי ```r eg_heb``` לעיתים עם הסימן ```r sym_heb``` או עם המספרים ```r num_heb``` 

i know direction of text reverse, that's okay, solved it, , in end of code comes out okay.

also, didn't include "params" in example is included in original code.

i work with:

r version 3.3.3 (2017-03-06) platform: x86_64-w64-mingw32/x64 (64-bit) running under: windows >= 8 x64 (build 9200)  locale: [1] lc_collate=hebrew_israel.1255  lc_ctype=hebrew_israel.1255     lc_monetary=hebrew_israel.1255 lc_numeric=c lc_time=hebrew_israel.1255   other attached packages:  [1] shiny_1.0.0          gridextra_2.2.1      reporters_0.8.8       reportersjars_0.0.2  shinybs_0.61         xlconnect_0.2-12      [7] xlconnectjars_0.2-12 reshape2_1.4.2       dplyr_0.5.0           ggplot2_2.2.1        xlsx_0.5.7           xlsxjars_0.6.1        [13] rjava_0.9-8          readxl_0.1.1 

i tried attach document showing problem, since wasn't able to, if interested i'll send him word document problem.

i suspect problem in formatting in word or in encoding into word

thank in advance,

aharon.