Practical R for Biologists by unknow
Author:unknow
Language: eng
Format: epub
Publisher: CAB International
Tool Box 15.1
⢠Use apply(filename, 1, sum) to calculate the sum of rows.
⢠Use apply(filename, 2, mean) to calculate the mean of columns.
⢠Use colMeans() to calculate the means of columns.
⢠Use colSums() to calculate the sums of columns.
⢠Use family= to specify the error distribution for a glm.
⢠Use glm() to calculate the amount of variance explained by the variables.
⢠Use h= in abline to set a line as horizontal.
⢠Use jitter() in plot to separate coincident points so that they appear distinct.
⢠Use mar= in par to set the margins.
⢠Use rowMeans() to calculate the means of rows.
⢠Use rowSums() to calculate the sum of rows.
⢠Use split() to separate values in a vector according to a supplied list of factors.
⢠Use v= in abline to set a line as vertical.
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