Hello,
I am new to this group. May I post a code-related question here? If
so, here it goes.
I am in the process of importing and reading data, reshaping the data
to be a 2D array, adding a header file on top (of the new 2D array),
and writing a new file. I do this in a loop for many files. I'm using
python 2.5 since that is the version distributed with ArcGIS, a
software that interfaces with python 2.5. However, I receive the
following error when I attempt to write a data matrix created with
NumArray. I just reviewed my two sources on Numarray, and I can't
figure out why I can't write the data. Below is the code and below the
code is the error message.
I'm not sure how to write NumArray lines ot a .txt file (see the the
last lines of code).
CODE STARTS HERE:
from __future__ import with_statement
import arcgisscripting, sys, os, string, copy, glob,numarray
# Create the Geoprocessor Object
gp = arcgisscripting.create()
##############
#DIRECTORIES
##############
workDIR = "C:\\PDSIwork"
resampleDIR = workDIR + "\\resample\\"
ascDIR = workDIR + "\\PDSIdata\\"
##############
#HEADER
##############
header = """\
ncols 1386
nrows 595
xllcorner -124.7292
yllcorner 24.6024
cellsize 0.0417
NODATA_value -9999
"""
#############################
#GET RUNLIST AND IMPORT DATA
##############################
data=[]
os.chdir(ascDIR)
runlist=os.listdir(ascDIR)
#print runlist
for filex in runlist:
x=open(filex,'r')
for i in xrange(824670):
z=x.readline()
z=float(z)
data.append(z)
print filex
#############
#RESHAPE DATA
#############
data2 = numarray.array(data)
data3 = numarray.reshape(data2, 595,1386)
data4=numarray.transpose(data3)
print len(data4)
##########################
#RENAME DATA FOR WRITING
#########################
os.chdir(resampleDIR)
h=filex.replace( '.', '_' )
outfilename=h+'.txt'
###################################
#WRITE NEW DATA WITH HEADER ON TOP
###################################
#try:
with open(outfilename,'w') as outfile:
outfile.write(header)
for line in data4:
line.replace('[',' ').replace(']',' ')
outfile.write(line)
---------------------------
Here's the error message:
---------------------------
Traceback (most recent call last): File
"C:/PDSIwork/PYTHON_SCRIPTS/RESAMPLER2b.py", line 74, in <module>
line.replace('[',' ').replace(']', ' ')
AttributeError: 'NumArray' object has no attribute 'replace'
Thank you,
Heather
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