headtail: Show the head or tail of a Raster* object

In raster: Geographic Data Analysis and Modeling

Description

Show the head (first rows/columns) or tail (last rows/columns) of the cell values of a Raster* object.

Usage

head(x, ...) 
tail(x, ...) 

Arguments

x	Raster* object
...	Additional arguments: rows=10 and cols=20, to set the maximum number of rows and columns that are shown. For RasterStack and RasterBrick objects there is an additional argument lyrs

Value

matrix

See Also

getValuesBlock

Examples

r <- raster(nrow=25, ncol=25)
values(r) = 1:ncell(r)
head(r)
tail(r, cols=10, rows=5)

Example output

Loading required package: sp
     1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19
1    1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19
2   26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44
3   51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69
4   76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94
5  101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
6  126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
7  151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
8  176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194
9  201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219
10 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244
    20
1   20
2   45
3   70
4   95
5  120
6  145
7  170
8  195
9  220
10 245
    16  17  18  19  20  21  22  23  24  25
21 516 517 518 519 520 521 522 523 524 525
22 541 542 543 544 545 546 547 548 549 550
23 566 567 568 569 570 571 572 573 574 575
24 591 592 593 594 595 596 597 598 599 600
25 616 617 618 619 620 621 622 623 624 625

raster documentation built on Jan. 5, 2021, 3:01 a.m.