Capitalize the first letter of both words in a two word string

Question

Let s say that I have a two word string and I want to capitalize both of them   name  lt - c  zip code    state    final count     The Hmisc package has a function capitalize which capitalized the first word  but I m not sure how to get the second word capitalized  The help page for capitalize doesn t suggest that it can perform that task   library Hmisc  capitalize name     1   Zip code      State         Final count    I want to get   c  Zip Code    State    Final Count     What about three-word strings   name2  lt - c  I like pizza

User · Answer

Try   require Hmisc  sapply name  function x      paste sapply strsplit x        capitalize   collapse

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From the help page for  toupper    simpleCap  lt - function x        s  lt - strsplit x        1       paste toupper substring s  1 1    substring s  2             sep     collapse           gt  sapply name   simpleCap   zip code         state   final count   Zip Code         State   Final Count

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Alternative way with substring and regexpr   substring name  1   lt - toupper substring name  1  1   pos  lt - regexpr      name  perl TRUE    1 substring name  pos   lt - toupper substring name  pos  pos

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Here is a slight improvement on the accepted answer that avoids having to use sapply     Also forces non-first characters to lower  titleCase  lt - Vectorize function x           Split input vector value   s  lt - strsplit x   quot   quot    1          Perform title casing and recombine   ret  lt - paste toupper substring s  1 1    tolower substring s  2            sep  quot  quot   collapse  quot   quot        return ret        USE NAMES   FALSE    name  lt - c  quot zip CODE quot    quot statE quot    quot final couNt quot    titleCase name     gt   quot Zip Code quot         quot State quot   quot Final Count quot

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The base R function to perform capitalization is toupper x    From the help file for  toupper there is this function that does what you need   simpleCap  lt - function x      s  lt - strsplit x        1     paste toupper substring s  1 1    substring s  2         sep     collapse         name  lt - c  zip code    state    final count    sapply name  simpleCap        zip code         state   final count      Zip Code         State   Final Count     Edit This works for any string  regardless of word count   simpleCap  I like pizza a lot    1   I Like Pizza A Lot

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The package BBmisc now contains the function capitalizeStrings   library  BBmisc   capitalizeStrings c  the taIl    wags The dOg    That Looks fuNny          all words   TRUE  lower back   TRUE   1   The Tail            Wags The Dog        That Looks Funny

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There is a build-in base-R solution for title case as well   tools  toTitleCase  demonstrating the title case       1   Demonstrating the Title Case    or   library tools  toTitleCase  demonstrating the title case       1   Demonstrating the Title Case

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You could also use the snakecase package   install packages  snakecase   library snakecase   name  lt - c  zip code    state    final count   to title case name    gt   1   Zip Code      State         Final Count     or  to upper camel case name  sep out          gt   1   Zip Code      State         Final Count    https   github com Tazinho snakecase

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Alternative   library stringr  a   c  capitalise this    and this   a  1   capitalise this   and this         str to title a   1   Capitalise This   And This

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Use this function from stringi package  stri trans totitle c  zip code    state    final count        1   Zip Code        State         Final Count    stri trans totitle  i like pizza very much       1   I Like Pizza Very Much

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This gives capital Letters to all major words     library lettercase  xString   str title case xString

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Match a regular expression that starts at the beginning   or after a space    space    and is followed by an alphabetical character    alpha     Globally  the g in gsub  replace all such occurrences with the matched beginning or space and the upper-case version of the matched alphabetical character    1  U  2  This has to be done with perl-style regular expression matching   gsub        space        alpha          1  U  2   name  perl TRUE     1   Zip Code      State         Final Count    In a little more detail for the replacement argument to gsub      1 says  use the part of x matching the first sub-expression   i e   the part of x matching       spacde      Likewise    2 says use the part of x matching the second sub-expression     alpha      The   U is syntax enabled by using perl TRUE  and means to make the next character Upper-case  So for  Zip code     1 is  Zip     2 is  code     U  2 is  Code   and   1  U  2 is  Zip Code    The  regexp page is helpful for understanding regular expressions   gsub for putting things together

[r] Capitalize the first letter of both words in a two word string

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