新手入门，求助

xucaifeng

开始研究R语言，但是在R中秋帮助的时候，比如输入命令“？lm（）”
出现的帮助信息

lm                    package:stats                    R Documentation

_F_i_t_t_i_n_g _L_i_n_e_a_r _M_o_d_e_l_s

_D_e_s_c_r_i_p_t_i_o_n:

     'lm' is used to fit linear models.  It can be used to carry out
     regression, single stratum analysis of variance and analysis of
     covariance (although 'aov' may provide a more convenient interface
     for these).

_U_s_a_g_e:

     lm(formula, data, subset, weights, na.action,
        method = "qr", model = TRUE, x = FALSE, y = FALSE, qr = TRUE,
        singular.ok = TRUE, contrasts = NULL, offset, ...)

_A_r_g_u_m_e_n_t_s:

formula: an object of class '"formula"' (or one that can be coerced to
          that class): a symbolic description of the model to be
          fitted.  The details of model specification are given under
          'Details'.

   这些看不懂，请问有没有高手知道有没有书或者帖子介绍这方面内容的？？


感谢