def excel2m(path):
data = xlrd.open_workbook(path)
table = data.sheets()[0]
nrows = table.nrows # 行数
ncols = table.ncols # 列数
c1 = np.arange(0, nrows, 1)
datamatrix = np.zeros((nrows, ncols))
for x in range(ncols):
cols = table.col_values(x)
minVals = min(cols)
maxVals = max(cols)
cols1 = np.matrix(cols) # 把list转换为矩阵进行矩阵操作
ranges = maxVals - minVals
b = cols1 - minVals
normcols = b / ranges # ###########！数据进行归一化处理
datamatrix[:, x] = normcols # 把数据进行存储
return datamatrix
