checkRd: (-1) add_es.Rd:16: Lost braces; missing escapes or markup?
    16 | \code{u} {Left eigenvectors} \cr
       |          ^
checkRd: (-1) add_es.Rd:17: Lost braces; missing escapes or markup?
    17 | \code{v} {Right eigenvectors} \cr
       |          ^
checkRd: (-1) add_es.Rd:18: Lost braces; missing escapes or markup?
    18 | \code{m} {Number of cases} \cr
       |          ^
checkRd: (-1) add_es.Rd:19: Lost braces; missing escapes or markup?
    19 | \code{d} {Eigenvalues} \cr
       |          ^
checkRd: (-1) add_es.Rd:20: Lost braces; missing escapes or markup?
    20 | \code{orgn} {Data mean} \cr
       |             ^
checkRd: (-1) add_es.Rd:24: Lost braces; missing escapes or markup?
    24 | \code{u} {Left eigenvectors} \cr
       |          ^
checkRd: (-1) add_es.Rd:25: Lost braces; missing escapes or markup?
    25 | \code{v} {Right eigenvectors} \cr
       |          ^
checkRd: (-1) add_es.Rd:26: Lost braces; missing escapes or markup?
    26 | \code{m} {Number of cases} \cr
       |          ^
checkRd: (-1) add_es.Rd:27: Lost braces; missing escapes or markup?
    27 | \code{d} {Eigenvalues} \cr
       |          ^
checkRd: (-1) add_es.Rd:28: Lost braces; missing escapes or markup?
    28 | \code{orgn} {Data mean} \cr
       |             ^
checkRd: (-1) i_pca.Rd:24: Lost braces; missing escapes or markup?
    24 | \code{u} {Left eigenvectors} \cr
       |          ^
checkRd: (-1) i_pca.Rd:25: Lost braces; missing escapes or markup?
    25 | \code{v} {Right eigenvectors} \cr
       |          ^
checkRd: (-1) i_pca.Rd:26: Lost braces; missing escapes or markup?
    26 | \code{m} {Number of cases} \cr
       |          ^
checkRd: (-1) i_pca.Rd:27: Lost braces; missing escapes or markup?
    27 | \code{d} {Eigenvalues} \cr
       |          ^
checkRd: (-1) i_pca.Rd:28: Lost braces; missing escapes or markup?
    28 | \code{orgn} {Data mean} \cr}
       |             ^
checkRd: (-1) update.i_pca.Rd:24: Lost braces; missing escapes or markup?
    24 | \code{u} {Left eigenvectors} \cr
       |          ^
checkRd: (-1) update.i_pca.Rd:25: Lost braces; missing escapes or markup?
    25 | \code{v} {Right eigenvectors} \cr
       |          ^
checkRd: (-1) update.i_pca.Rd:26: Lost braces; missing escapes or markup?
    26 | \code{m} {Number of cases} \cr
       |          ^
checkRd: (-1) update.i_pca.Rd:27: Lost braces; missing escapes or markup?
    27 | \code{d} {Eigenvalues} \cr
       |          ^
checkRd: (-1) update.i_pca.Rd:28: Lost braces; missing escapes or markup?
    28 | \code{orgn} {Data mean} \cr}
       |             ^