python - Regex to model the below mentioned type of expressions -

- 

++++++++++++++++++++++++++++++++++++++++++++++++    | site | morning | afternoon | evening | night |   ++++++++++++++++++++++++++++++++++++++++++++++++   | long 144 - lat 18  | 100 | 150 | 10  | 5 |   ++++++++++++++++++++++++++++++++++++++++++++++++    | long 161 - lat 122 |   100   |   |   | 5 |   ++++++++++++++++++++++++++++++++++++++++++++++++   | long 100 - lat 134 |   100   |   | 5 |   |   ++++++++++++++++++++++++++++++++++++++++++++++++   | long 190 - lat 14  |    |    | 158 |  5  |

since don't see pattern i'm stuck on how model regular expression extract values site, morning, afternoon, evening , night. example regex should able scrape ('long 144 - lat 18', '100','150','10','5') first row , ('long 161 - lat 122', '100','','','5') second row, on. i'm able scrape 'site' column can't think of model scrape rest. main thing don't have "|", "+" , "null" in data, used them here in question make little clear, replaced space in original data. appreciated. sorry ugly pattern, tried make pretty.
edit: data description pic here

the data in fixed-position format; that's easy handle.

you'll want read each line fully, , split line according column position. not regex or using .split().

e.g., simplistic version:

with open("data.txt") infile:     line in infile:          longitude = float(line[5:10])          latitude = float(line[15:20])          morning = line[25:30]          # see if there's data, otherwise assign default          morning = float(morning) if morning.strip() else 0          # ditto afternoon, evening, night

the column limits chosen @ random in example; it'll easy figure them out correct data file.


Comments

Post a Comment

Popular posts from this blog

python - No exponential form of the z-axis in matplotlib-3D-plots -

-
Image
i have similar problem described in how prevent numbers being changed exponential form in python matplotlib figure : i don't want (in special case) weird scientific formatting of axis. problem different have problem @ z -axis. 2-d plots can use ax.get_yaxis().get_major_formatter().set_useoffset(false) . , there no function ax.get_zaxis() what use format z -axis same way? edit: example: from mpl_toolkits.mplot3d import axes3d import numpy np import sys import matplotlib import matplotlib.pyplot pyplot def func(xi, ti): res = 10e3 + np.cos(ti) * np.sin(xi) return res if __name__ == '__main__': timespacing = 20 timestart = 0 timeend = 1 time = np.linspace(timestart, timeend, timespacing) widthspacing = 50 widthstart = 0 widthend = 3 width = np.linspace(widthstart, widthend, widthspacing) reslist = [] matplotlib.rcparams['legend.fontsize'] = 10 fig = pyplot.figure() ax = fig.gca(projection = '3d...
Read more

php - Best Light server (Linux + Web server + Database) for Raspberry Pi -

-
i install web server database on raspberry pi (little computer). computer has 1gb ram. i want know best combination: linux distribution , web server , dbms run local server multiple users minimal latency, use php on server. , best settings performance , not have bugs (memory usage, disable plugin, disable service, etc)? i thought light debian , lighttpd server , sqlite database. solution? i think lighttpd + sqlite great choice. linux distro, debian @ centos or tiny core linux , although i'm not sure of compatibility pi. obviously, can't go wrong raspbian if want use in production , more stable performance, few more pi's , set them in cluster .
Read more

c# - "Newtonsoft.Json.JsonSerializationException unable to find constructor to use for types" error when deserializing class -

-
i developing app in xamarin android. have splash screen serialize class , pass mainactivity using intent . when try deserialize in mainactivity error message : "serializationexception unable find constructor use types" serialization : void loaddata() { currency currency = new currency(this); intent = new intent(this, typeof(mainactivity)); intent.putextra("currency", newtonsoft.json.jsonconvert.serializeobject(currency)); startactivity(intent); } deserialization : cur = newtonsoft.json.jsonconvert.deserializeobject<currency> (intent.getstringextra("currency")); // error here class constructor : public currency(context context) { thiscontext = context; } i began experiencing problem after added parameter context context constructor. has caused this? how can solve it? possible serialize/deserialize class has parameters? you need have empty constructor in currency class in order deserialize it. ...
Read more