I use the head(d) and tail(d) methods in R package utils a lot - frequently one after the other. So I wrote a simple wrapper for the two functions: ht <- function(d, m=5, n=m){ # print the head and tail together cat(" head --> ", head(d,m), "\n", "---", "\n...
In This section we will learn about head and tail function in R. head() function in R takes argument “n” and returns the first n rows of a dataframe or matrix, by default it returns first 6 rows. tail() function in R returns last n rows of a dataframe or matrix, by defaul...
This effect could occur via an enhancement of glutamatergic transmission through an increase in mGLU receptor 1 expression and function (Aira et al., 2012). In sham ligated rats, TCB-2 (up to 1 mM) did not alter C-fibre-evoked spinal field potentials. The enhancing effect of TCB-2 in ...
cant make head nor tail of sth 不理解某事;不明白某事to be unable to understand sth do sbs head in (informal) 使某人困惑(或烦恼、生气)to make you feel confused, upset and/or annoyed do sth standing on your head (informal) 做某事不费吹灰之力to be able to do sth very easily and with...
即可指任何一级的头头。双语例句 She groaned and held her head.她呻吟着，用手抱住头。The water closed over his head.水没过他的头顶。She shook her head violently.她拼命摇头。He shook his head regretfully.他遗憾地摇了摇头。Her head nodded in agreement.她点头表示同意。
In snakes, divergence in head size between the sexes has been interpreted as an adaptation to intersexual niche divergence. By overcoming gape-limitation, a larger head enables snakes of one sex to ingest larger prey items. Under this hypothesis, we do n
bind - Set Readline key bindings and variables. bind: bind [-lpsvPSVX] [-m keymap] [-f filename] [-q name] [-u name] [-r keyseq] [-x keyseq:shell-command] [keyseq:readline-function or readline-command] break - Exit for, while, or until loops. ...
The change in function of the vertebral column has been accompanied by changes in its form, as well as by changes in its relationship to the skull and pelvic girdle. In human beings, the tail is reduced to between three and five fused coccygeal vertebrae, which curve ventrally and help ...
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cant make head nor tail of sth 不理解某事;不明白某事to be unable to understand sth do sbs head in (informal) 使某人困惑(或烦恼、生气)to make you feel confused, upset and/or annoyed do sth standing on your head (informal) 做某事不费吹灰之力to be able to do sth very easily and with...