在python3中找不到linspace

Question

就像在python2中一样，我做了以下事情：

import numpy as np
print (np.linspace(2, 3, 4))

收到错误：

  

AttributeError：module＆＃39; numpy＆＃39;没有属性＆＃39; linspace＆＃39;`

那么我在哪里可以找到linspace()

Answer 1

@Abdou var summary = ( from p in db.CP_SDV_Acc where p.Scandate >= start && p.EndDate <= end && p.Device==divice let k = new { //try this if you need a date field // p.SaleDate.Date.AddDays(-1 *p.SaleDate.Day - 1) Device = p.Device, } group p by k into t select new OeeRecovery { Device = t.Key.Device, GoodPcs = t.Sum(p => p.GoodPcs), BadPcs=t.Sum(p=>p.BadPcs), Oee =(decimal)(t.Sum(p => p.GoodPcs)- t.Sum(p => p.BadPcs)) / t.Sum(p => p.GoodPcs), WorkTime = t.Sum(x=>new TimeSpan(x.EndDate-x.Scandate).TotalMilliseconds??TimeSpan.Zero) //t.Sum(new TimeSpan( p => p.EndDate - p.Scandate)) //t.Aggregate(TimeSpan.Zero, (total, it) =>total += (it.EndDate-it.Scandate)), }).ToList();