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adding examples, bug-fix in cmake

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This commit is contained in:
Hans Dembinski 2016-04-10 17:04:04 -04:00
parent 611adc92b8
commit 916e687376
3 changed files with 41 additions and 3 deletions
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6
CMake/CMakeLists.txt
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@ -3,9 +3,9 @@ cmake_minimum_required (VERSION 2.8)
project(histogram)
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR})
option(USE_PYTHON ON)
option(USE_NUMPY ON)
option(BUILD_CHECKS OFF)
option(USE_PYTHON "Build Python bindings" ON)
option(USE_NUMPY "Build Numpy support" ON)
option(BUILD_CHECKS "Build auxillary checks" OFF)
if(${CMAKE_BUILD_TYPE})
STRING(TOLOWER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE)

18
examples/example_1d.py Normal file
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@ -0,0 +1,18 @@
import histogram as hg
import numpy as np
import matplotlib.pyplot as plt
h = hg.histogram(hg.regular_axis(10, -3, 3))
h.fill(np.random.randn(1000))
bins = h.axis(0).bins
x = np.array(h.axis(0)) # axis instances behave like sequences
y = np.asarray(h) # creates a view (no copy involved)
y = y[:bins] # cut off underflow/overflow bins
y = np.append(y, [0]) # append a zero because matplotlib's plot(...) is weird
plt.plot(x, y, drawstyle="steps-post")
plt.xlabel("x")
plt.ylabel("y")
plt.show()

20
examples/example_2d.py Normal file
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@ -0,0 +1,20 @@
import histogram as hg
import numpy as np
import matplotlib.pyplot as plt
h = hg.histogram(hg.regular_axis(10, -3, 3, uoflow=False),
hg.regular_axis(10, -3, 3, uoflow=False))
xy = np.random.randn(2000).reshape((1000, 2))
xy[:,1] *= 0.5
h.fill(xy)
bins = h.axis(0).bins
x = np.array(h.axis(0)) # axis instances behave like sequences
y = np.array(h.axis(1))
z = np.asarray(h) # creates a view (no copy involved)
plt.pcolor(x, y, z.T)
plt.xlabel("x")
plt.ylabel("y")
plt.show()