Select data from a list
This code is to produce the list data from which I want to select some elements:
SeedRandom[1];
n = 10;
xmin = RandomInteger[{0, 20}, n];
ymin = RandomInteger[{0, 20}, n];
xmax = xmin + RandomInteger[{1, 10}, n];
ymax = ymin + RandomInteger[{1, 10}, n];
data =
Transpose[{xmin, ymin, xmax, ymax}]
/. {xmin_, ymin_, xmax_, ymax_} :> {{xmin, ymin}, {xmax, ymax}}
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{7, 19}, {11, 29}},
{{0, 5}, {1, 11}}, {{2, 18}, {4, 20}}, {{3, 16}, {7, 22}},
{{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}, {{16, 19}, {17, 29}},
{{14, 4}, {18, 6}}}
ydiff = data[[All, 2, 2]] - data[[All, 1, 2]]
{3, 4, 10, 6, 2, 6, 3, 4, 10, 2}
How can I select all data values where ydiff = (ymax - ymin) is for example greater than ydiffmin = 2 and less ydiffmax = 9?
The result should be:
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}},
{{3, 16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
list-manipulation
asked Dec 30 '18 at 6:57
mrz
5,58321143
add a comment |
This code is to produce the list data from which I want to select some elements:
SeedRandom[1];
n = 10;
xmin = RandomInteger[{0, 20}, n];
ymin = RandomInteger[{0, 20}, n];
xmax = xmin + RandomInteger[{1, 10}, n];
ymax = ymin + RandomInteger[{1, 10}, n];
data =
Transpose[{xmin, ymin, xmax, ymax}]
/. {xmin_, ymin_, xmax_, ymax_} :> {{xmin, ymin}, {xmax, ymax}}
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{7, 19}, {11, 29}},
{{0, 5}, {1, 11}}, {{2, 18}, {4, 20}}, {{3, 16}, {7, 22}},
{{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}, {{16, 19}, {17, 29}},
{{14, 4}, {18, 6}}}
ydiff = data[[All, 2, 2]] - data[[All, 1, 2]]
{3, 4, 10, 6, 2, 6, 3, 4, 10, 2}
How can I select all data values where ydiff = (ymax - ymin) is for example greater than ydiffmin = 2 and less ydiffmax = 9?
The result should be:
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}},
{{3, 16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
list-manipulation
asked Dec 30 '18 at 6:57
mrz
5,58321143
add a comment |
This code is to produce the list data from which I want to select some elements:
SeedRandom[1];
n = 10;
xmin = RandomInteger[{0, 20}, n];
ymin = RandomInteger[{0, 20}, n];
xmax = xmin + RandomInteger[{1, 10}, n];
ymax = ymin + RandomInteger[{1, 10}, n];
data =
Transpose[{xmin, ymin, xmax, ymax}]
/. {xmin_, ymin_, xmax_, ymax_} :> {{xmin, ymin}, {xmax, ymax}}
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{7, 19}, {11, 29}},
{{0, 5}, {1, 11}}, {{2, 18}, {4, 20}}, {{3, 16}, {7, 22}},
{{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}, {{16, 19}, {17, 29}},
{{14, 4}, {18, 6}}}
ydiff = data[[All, 2, 2]] - data[[All, 1, 2]]
{3, 4, 10, 6, 2, 6, 3, 4, 10, 2}
How can I select all data values where ydiff = (ymax - ymin) is for example greater than ydiffmin = 2 and less ydiffmax = 9?
The result should be:
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}},
{{3, 16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
list-manipulation
asked Dec 30 '18 at 6:57
mrz
5,58321143
This code is to produce the list data from which I want to select some elements:
SeedRandom[1];
n = 10;
xmin = RandomInteger[{0, 20}, n];
ymin = RandomInteger[{0, 20}, n];
xmax = xmin + RandomInteger[{1, 10}, n];
ymax = ymin + RandomInteger[{1, 10}, n];
data =
Transpose[{xmin, ymin, xmax, ymax}]
/. {xmin_, ymin_, xmax_, ymax_} :> {{xmin, ymin}, {xmax, ymax}}
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{7, 19}, {11, 29}},
{{0, 5}, {1, 11}}, {{2, 18}, {4, 20}}, {{3, 16}, {7, 22}},
{{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}, {{16, 19}, {17, 29}},
{{14, 4}, {18, 6}}}
ydiff = data[[All, 2, 2]] - data[[All, 1, 2]]
{3, 4, 10, 6, 2, 6, 3, 4, 10, 2}
How can I select all data values where ydiff = (ymax - ymin) is for example greater than ydiffmin = 2 and less ydiffmax = 9?
The result should be:
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}},
{{3, 16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
list-manipulation
list-manipulation
asked Dec 30 '18 at 6:57
mrz
5,58321143
asked Dec 30 '18 at 6:57
mrz
5,58321143
asked Dec 30 '18 at 6:57
mrz
5,58321143
asked Dec 30 '18 at 6:57
mrz
5,58321143
asked Dec 30 '18 at 6:57
mrz
5,58321143
5,58321143
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Select[data, 2 < #[[2, 2]] - #[[1, 2]] < 9 &](* or *)
Pick[data, 2 < # < 9 & /@ ydiff]
all give
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 7:16
kglr
177k9198406
add a comment |
Szabolcs' BoolEval package comes to mind...
Needs["BoolEval`"]
BoolPick[data, 2 < ydiff < 9]
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 9:30
C. E.
50k397202
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Select[data, 2 < #[[2, 2]] - #[[1, 2]] < 9 &](* or *)
Pick[data, 2 < # < 9 & /@ ydiff]
all give
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 7:16
kglr
177k9198406
add a comment |
Select[data, 2 < #[[2, 2]] - #[[1, 2]] < 9 &](* or *)
Pick[data, 2 < # < 9 & /@ ydiff]
all give
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 7:16
kglr
177k9198406
add a comment |
Select[data, 2 < #[[2, 2]] - #[[1, 2]] < 9 &](* or *)
Pick[data, 2 < # < 9 & /@ ydiff]
all give
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 7:16
kglr
177k9198406
Select[data, 2 < #[[2, 2]] - #[[1, 2]] < 9 &](* or *)
Pick[data, 2 < # < 9 & /@ ydiff]
all give
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 7:16
kglr
177k9198406
edited Dec 30 '18 at 9:05
answered Dec 30 '18 at 7:16
kglr
177k9198406
answered Dec 30 '18 at 7:16
kglr
177k9198406
answered Dec 30 '18 at 7:16
kglr
177k9198406
177k9198406
add a comment |
add a comment |
Szabolcs' BoolEval package comes to mind...
Needs["BoolEval`"]
BoolPick[data, 2 < ydiff < 9]
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 9:30
C. E.
50k397202
add a comment |
Szabolcs' BoolEval package comes to mind...
Needs["BoolEval`"]
BoolPick[data, 2 < ydiff < 9]
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 9:30
C. E.
50k397202
add a comment |
Szabolcs' BoolEval package comes to mind...
Needs["BoolEval`"]
BoolPick[data, 2 < ydiff < 9]
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 9:30
C. E.
50k397202
Szabolcs' BoolEval package comes to mind...
Needs["BoolEval`"]
BoolPick[data, 2 < ydiff < 9]
{{{5, 3}, {11, 6}}, {{0, 8}, {5, 12}}, {{0, 5}, {1, 11}}, {{3,
16}, {7, 22}}, {{0, 12}, {6, 15}}, {{0, 0}, {4, 4}}}
answered Dec 30 '18 at 9:30
C. E.
50k397202
answered Dec 30 '18 at 9:30
C. E.
50k397202
answered Dec 30 '18 at 9:30
C. E.
50k397202
answered Dec 30 '18 at 9:30
C. E.
50k397202
50k397202
add a comment |
add a comment |
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