Question

我正在使用python 2.7.3

我怎样才能找到＆amp;显示每天我的txt文件的最大值

TimeStamp,Irradiance,Ambient_Temperature
21/7/2014 0:00,0.66,29.16
21/7/2014 0:00,0.71,29.16
21/7/2014 0:00,0.65,29.17
21/7/2014 0:00,0.67,29.17
21/7/2014 0:01,0.58,29.17
.
.
.
22/7/2014 23:58,0.69,28.54
22/7/2014 23:58,0.61,28.54
22/7/2014 23:58,0.65,28.51
22/7/2014 23:58,0.59,28.54
22/7/2014 23:59,0.63,28.55
22/7/2014 23:59,0.67,28.54
22/7/2014 23:59,0.68,28.56
22/7/2014 23:59,0.58,28.55

这就是我如何找到辐射和辐射的最大/最小天数。临时（不是一天）所以我怎么能像下面的代码一样大致找到一天而不是几天

long_title = ('\n Max Irrad Value: {:.2f} at {} , Min Irrad Value: {:.2f} at {}, Max AMB_TEMP Value: {:.2f} at {} , Min AMB_TEMP Value: {:.2f} at {}\n')
ax1.set_title(long_title.format(max(temp),min(temp),fontsize=16, color='green',ha='bottom'))

感谢：）

Answer 1

data = {}
with open('path/to/input') as infile:
    for line in infile:
        line = line.strip()
        date, rest = line.split(None,1)
        time, irrad, temp = rest.split(',')
        irrad = float(irrad)
        temp = float(temp)
        if time not in data:
            data[time] = {'maxTemp':float('inf'), 'minTemp':float('-inf'), 'maxIrrad':float('inf'), 'minIrrad':float('-inf')}
        if irrad < data[time]['minIrrad']:
            data[time]['minIrrad'] = irrad
        elif irrad > data[time]['maxIrrad']:
            data[time]['maxIrrad'] = irrad
        if temp < data[time]['minTemp']:
            data[time]['minTemp'] = temp
        elif temp > data[time]['maxTemp']:
            data[time]['maxTemp'] = temp

data现在包含每天的最高和最低温度和照射

显示每天的最大值（python）

1 个答案: