Question

我有一个用弧度表示Lan / Lon的csv，我想将它们更改为度。我知道可以通过迭代和180 / pi来完成，但是我正在寻求一种更简单的方法。

# read file and store in file variable
file = open("Stop Word.txt", "r")

 # create global array
 lists = []  

 # create header 
 def startingProgram():
    print("=" * 70)
    print("Masukkan Pesan: (untuk berhenti masukkan string kosong)")
    print("=" * 70)

# clean punctuation and conjunction
def message(userInput):
    punctuation = "!@#$%^&*()_+<>?:.,;/"
    words = userInput.lower().split()
    conjunction = file.read().split("\n")
    removePunc = [char.strip(punctuation) for char in words if char not in conjunction]
    global lists
    lists = removePunc
    return removePunc

# sort and count duplicate string
def counting(words):
    w_unq = sorted(((item, words.count(item)) for item in set(words)), key=lambda x: x[1], reverse=True)
    count = 1
    for u in w_unq:
        print("{}\t{:<10}\t{:<0}".format(count,*u))
        count += 1

# create table
def table():
    print("Distribusi Frekuensi Kata: ")
    print("-"*70)
    print("{}\t{:<10}\t{:<0}".format("No","Kata","Frekuensi"))
    print("-"*70)

# run program
startingProgram()
pesan = None
while pesan != "":
    pesan = input("Pesan: ")
    message(pesan)
    table()
    counting(lists)

我想使用degres导出准确的csv

Answer 1

将要转换的列分组为列表，并将其用作索引，然后调用transform：

data = pd.read_csv(load , delimiter=';')
cols=[['ARS_GPS.GPSCycle.GPS_GEN_POS_FIX.Latitude','ARS_GPS.GPSCycle.GPS_GEN_POS_FIX.Longitude']]

data[cols]= data[cols].transform(lambda rad: rad*180/math.pi)

data.to_csv("new.csv",sep=";")

编辑： 从@Quang Hoang的示例中学到，您可以编写：

data[cols]= np.rad2deg(data[cols])

通过熊猫更改纬度和经度

1 个答案: