Python ValueError:x和y必须具有相同的第一个维度
我收到一条错误消息Python ValueError:x和y必须具有相同的第一个维度,python,matplotlib,Python,Matplotlib,我收到一条错误消息 Traceback (most recent call last): File "C:\Python27\ANN.py", line 165, in <module> patternRecognition() File "C:\Python27\ANN.py", line 131, in patternRecognition plt.plot(xp, eachPattern) File "C:\Python27\lib\site-pac
Traceback (most recent call last):
File "C:\Python27\ANN.py", line 165, in <module>
patternRecognition()
File "C:\Python27\ANN.py", line 131, in patternRecognition
plt.plot(xp, eachPattern)
File "C:\Python27\lib\site-packages\matplotlib\pyplot.py", line 3093, in plot
ret = ax.plot(*args, **kwargs)
File "C:\Python27\lib\site-packages\matplotlib\axes\_axes.py", line 1373, in plot
for line in self._get_lines(*args, **kwargs):
File "C:\Python27\lib\site-packages\matplotlib\axes\_base.py", line 303, in _grab_next_args
for seg in self._plot_args(remaining, kwargs):
File "C:\Python27\lib\site-packages\matplotlib\axes\_base.py", line 281, in _plot_args
x, y = self._xy_from_xy(x, y)
File "C:\Python27\lib\site-packages\matplotlib\axes\_base.py", line 223, in _xy_from_xy
raise ValueError("x and y must have same first dimension")
ValueError: x and y must have same first dimension
ValueError:x和y必须具有相同的第一个维度
代码如下:
import matplotlib.pyplot as plt
import matplotlib.dates as mdates
import numpy as np
date,bid,ask = np.loadtxt('GBPUSD1d.txt', unpack=True,
delimiter =',',converters={0:mdates.strpdate2num('%Y%m%d%H%M%S')})
avgLine = ((bid+ask)/2)
patternAr = []
performanceAr = []
patForRec = []
eachPattern = []
def percentChange(startPoint, currentPoint):
return ((float(currentPoint)- startPoint)/abs(startPoint))*100.00
def patternStorage():
patStartTime = time.time()
x = (len(avgLine))-30
y = 11
while y < x:
pattern = []
p1 = percentChange(avgLine[y-10], avgLine[y-9])
...
p10 = percentChange(avgLine[y-10], avgLine[y])
outcomeRange = avgLine[y+20:y+30]
currentPoint = avgLine[y]
try:
avgOutcome = reduce(lambda x, y: x + y, outcomeRange) / len(outcomeRange)
except Exception, e:
print str(e)
avgOutcome = 0
futureOutcome = percentChange(currentPoint, avgOutcome)
pattern.append(p1)
pattern.append(p2)
pattern.append(p3)
pattern.append(p3)
pattern.append(p4)
pattern.append(p5)
pattern.append(p6)
pattern.append(p7)
pattern.append(p8)
pattern.append(p9)
pattern.append(p10)
patternAr.append(pattern)
performanceAr.append(futureOutcome)
y += 1
patEndTime = time.time()
print len (patternAr)
print len (performanceAr)
print 'Patten storage took:', patEndTime - patStartTime, 'seconds'
def currentPattern():
cp1 = percentChange(avgLine[-11], avgLine[-10])
...
cp10 = percentChange(avgLine[-11], avgLine[-1])
patForRec.append(cp1)
...
patForRec.append(cp10)
print patForRec
def patternRecognition():
for eachPattern in patternAr:
sim1 = 100.00 - abs(percentChange(eachPattern[0], patForRec[0]))
...
sim10 = 100.00 - abs(percentChange(eachPattern[9], patForRec[9]))
howSim =((sim1+sim2+sim3+sim4+sim5+sim6+sim7+sim8+sim9+sim10))/float(10)
if howSim > 70:
patdex = patternAr.index(eachPattern)
print 'predicted outcome',performanceAr[patdex]
xp = [1,2,3,4,5,6,7,8,9,10]
fig = plt.figure()
plt.plot(xp, patForRec)
plt.plot(xp, eachPattern)
plt.show()
patternStorage()
currentPattern()
patternRecognition()
print (len(patForRec))
print (len(eachPattern))
导入matplotlib.pyplot作为plt
将matplotlib.dates导入为mdates
将numpy作为np导入
日期、标书、ask=np.loadtxt('GBP USDAD.txt',unpack=True,
分隔符=',',转换器={0:mdates.strpdate2num(“%Y%m%d%H%m%S'))
avgLine=((出价+出价)/2)
patternAr=[]
性能耳=[]
patForRec=[]
每个模式=[]
def百分比变化(起始点、当前点):
返回((浮动(当前点)-起始点)/abs(起始点))*100.00
def patternStorage():
patStartTime=time.time()
x=(len(avgLine))-30
y=11
当y70:
patdex=模式索引(每个模式)
打印“预测结果”,PerformanceEAR[patdex]
xp=[1,2,3,4,5,6,7,8,9,10]
图=plt.图()
plt.plot(xp,patForRec)
plt.plot(xp,每个模式)
plt.show()
模式存储()
currentPattern()
模式识别()
印刷品(len(patForRec))
打印(len(每个图案))
完整错误消息
Traceback (most recent call last):
File "C:\Python27\ANN.py", line 165, in <module>
patternRecognition()
File "C:\Python27\ANN.py", line 131, in patternRecognition
plt.plot(xp, eachPattern)
File "C:\Python27\lib\site-packages\matplotlib\pyplot.py", line 3093, in plot
ret = ax.plot(*args, **kwargs)
File "C:\Python27\lib\site-packages\matplotlib\axes\_axes.py", line 1373, in plot
for line in self._get_lines(*args, **kwargs):
File "C:\Python27\lib\site-packages\matplotlib\axes\_base.py", line 303, in _grab_next_args
for seg in self._plot_args(remaining, kwargs):
File "C:\Python27\lib\site-packages\matplotlib\axes\_base.py", line 281, in _plot_args
x, y = self._xy_from_xy(x, y)
File "C:\Python27\lib\site-packages\matplotlib\axes\_base.py", line 223, in _xy_from_xy
raise ValueError("x and y must have same first dimension")
ValueError: x and y must have same first dimension
回溯(最近一次呼叫最后一次):
文件“C:\Python27\ANN.py”,第165行,在
模式识别()
模式识别中的文件“C:\Python27\ANN.py”,第131行
plt.plot(xp,每个模式)
文件“C:\Python27\lib\site packages\matplotlib\pyplot.py”,第3093行,在plot中
ret=最大绘图(*args,**kwargs)
文件“C:\Python27\lib\site packages\matplotlib\axes\\u axes.py”,第1373行,在绘图中
对于自身中的行。获取行(*args,**kwargs):
文件“C:\Python27\lib\site packages\matplotlib\axes\\u base.py”,第303行,位于下一个参数中
对于seg in self.\u plot\u args(剩余,kwargs):
文件“C:\Python27\lib\site packages\matplotlib\axes\\u base.py”,第281行,在绘图参数中
x、 y=自。_xy_自_xy(x,y)
文件“C:\Python27\lib\site packages\matplotlib\axes\\u base.py”,第223行,在\u xy\u中
提升值错误(“x和y必须具有相同的第一个维度”)
ValueError:x和y必须具有相同的第一个维度
问题在于每个模式中都有11个元素,而所有xp
都有10个元素。原因可能是在代码的patternStorage
函数的第52行和第53行,您将p3
附加到列表中两次:
pattern.append(p3)
pattern.append(p3)
如果你去掉其中的一个,图表就画得很好。虽然它存储在一个循环中,可以多次绘图,但不知道您是否希望这样做
如果您尝试在循环中做更多的事情,那么您必须编写更少的代码,这种您不小心做了两次的事情的问题将更少发生。我们无法处理您的脚本,因为您没有提供gbpUSDAD.txt
文件。请做一个完整的最小工作示例。