1 2# This library is free software; you can redistribute it and/or 3# modify it under the terms of the GNU Library General Public 4# License as published by the Free Software Foundation; either 5# version 2 of the License, or (at your option) any later version. 6# 7# This library is distributed in the hope that it will be useful, 8# but WITHOUT ANY WARRANTY; without even the implied warranty of 9# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10# GNU Library General Public License for more details. 11# 12# You should have received A copy of the GNU Library General 13# Public License along with this library; if not, write to the 14# Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, 15# MA 02111-1307 USA 16 17 18################################################################################ 19# FUNCTION: DESCRIPTION: 20# symbolTable Shows a table of plot symbols from a given font 21################################################################################ 22 23 24symbolTable <- 25function(font = par('font'), cex = 0.7) 26{ 27 # A function implemented by Diethelm Wuertz 28 29 # Description: 30 # Shows a table of plot characters from a given font 31 32 # Example: 33 # symbolTable() 34 35 # Author: 36 # Unknown, piece of code found on the internet. 37 38 # FUNCTION: 39 40 # Table: 41 plot(0, 0, xlim = c(-1, 11), ylim = c(0, 26), type = 'n', 42 axes = FALSE, xlab = '', ylab = '', 43 main = "Table of Plot Characters") 44 j = -1 45 for(i in 0:255) { 46 if(i %% 25 == 0) {j = j+1; k = 26} 47 k = k-1 48 points(j, k, pch = i, font = font, cex = cex, col = 2) 49 text(j + 0.50, k, i, cex = cex) 50 } 51 52 # Return Value: 53 invisible(font) 54} 55 56 57################################################################################ 58 59