[R] how to keep all zeros in 1st row (not NA)

iembry iruckaE at mail2world.com
Wed Nov 28 14:17:37 CET 2012


Hi, let me correct my previous post ("zeros in double matrix rather than
character matrix").

I have included entries from the .csv file that has 4 columns of 1000
columns and 101 rows. The first column with the "Time (day)" will not be
removed, but the row headers are the numbers 1 to 1000 and they will remain
in the matrix.

In the previous post I mentioned that R makes the 1000 columns and the 101
rows into a "101x0 character matrix" once I removed the 1st column "Time
(day)". Instead I want this to be a "101x1000 double matrix". 

What needs to be done to make the .csv into a double matrix rather than a
character matrix when the first row is all zeros (0s)?

Thank-you.

Irucka Embry


This is the code that I am using:

Input <- as.matrix(read.csv("Input_Parameter.csv", header = TRUE, sep =","))
Input <- as.matrix(Input[,-1]) # remove column 1 from analysis


This is some of the values that are being read from the .csv file:
Time (day)	1	2	3	4
0	0	0	0	0
1	0.16387	0.60612	0.87705	0.83798
2	0.32774	1.2122	1.7541	1.676
3	0.4916	1.8184	2.6312	2.5139
4	0.65547	2.4245	3.5082	3.3519
5	0.81934	3.0306	4.3853	4.1899
6	0.98321	3.6367	5.2623	5.0279
7	1.1471	4.2429	6.1394	5.8659
8	1.3109	4.849	7.0164	6.7038
9	1.4748	5.4551	7.8935	7.5418
10	1.6387	6.0612	8.7705	8.3798
11	1.8026	6.6673	9.6476	9.2178
12	1.9664	7.2735	10.525	10.056
13	2.1303	7.8796	11.402	10.894
14	2.2942	8.4857	12.279	11.732
15	2.458	9.0918	13.156	12.57
16	2.6219	9.6979	14.033	13.408
17	2.7858	10.304	14.91	14.246
18	2.9496	10.91	15.787	15.084
19	3.1135	11.516	16.664	15.922
20	3.2774	12.122	17.541	16.76
21	3.4412	12.729	18.418	17.598
22	3.6051	13.335	19.295	18.436
23	3.769	13.941	20.172	19.274
24	3.9328	14.547	21.049	20.112
25	4.0967	15.153	21.926	20.95
26	4.2606	15.759	22.803	21.788
27	4.4244	16.365	23.68	22.625
28	4.5883	16.971	24.557	23.463
29	4.7522	17.578	25.434	24.301
30	4.916	18.184	26.312	25.139
31	5.0799	18.79	27.189	25.977
32	5.2438	19.396	28.066	26.815
33	5.4077	20.002	28.943	27.653
34	5.5715	20.608	29.82	28.491
35	5.7354	21.214	30.697	29.329
36	5.8993	21.82	31.574	30.167
37	6.0631	22.426	32.451	31.005
38	6.227	23.033	33.328	31.843
39	6.3909	23.639	34.205	32.681
40	6.5547	24.245	35.082	33.519
41	6.7186	24.851	35.959	34.357
42	6.8825	25.457	36.836	35.195
43	7.0463	26.063	37.713	36.033
44	7.2102	26.669	38.59	36.871
45	7.3741	27.275	39.467	37.709
46	7.5379	27.882	40.344	38.547
47	7.7018	28.488	41.221	39.385
48	7.8657	29.094	42.098	40.223
49	8.0295	29.7	42.976	41.061
50	8.1934	30.306	43.853	41.899
51	8.1115	30.003	43.414	41.48
52	8.0295	29.7	42.976	41.061
53	7.9476	29.397	42.537	40.642
54	7.8657	29.094	42.098	40.223
55	7.7837	28.791	41.66	39.804
56	7.7018	28.488	41.221	39.385
57	7.6199	28.185	40.783	38.966
58	7.5379	27.882	40.344	38.547
59	7.456	27.579	39.906	38.128
60	7.3741	27.275	39.467	37.709
61	7.2921	26.972	39.029	37.29
62	7.2102	26.669	38.59	36.871
63	7.1283	26.366	38.152	36.452
64	7.0463	26.063	37.713	36.033
65	6.9644	25.76	37.275	35.614
66	6.8825	25.457	36.836	35.195
67	6.8005	25.154	36.398	34.776
68	6.7186	24.851	35.959	34.357
69	6.6367	24.548	35.521	33.938
70	6.5547	24.245	35.082	33.519
71	6.4728	23.942	34.644	33.1
72	6.3909	23.639	34.205	32.681
73	6.3089	23.336	33.766	32.262
74	6.227	23.033	33.328	31.843
75	6.1451	22.73	32.889	31.424
76	6.0631	22.426	32.451	31.005
77	5.9812	22.123	32.012	30.586
78	5.8993	21.82	31.574	30.167
79	5.8173	21.517	31.135	29.748
80	5.7354	21.214	30.697	29.329
81	5.6535	20.911	30.258	28.91
82	5.5715	20.608	29.82	28.491
83	5.4896	20.305	29.381	28.072
84	5.4077	20.002	28.943	27.653
85	5.3257	19.699	28.504	27.234
86	5.2438	19.396	28.066	26.815
87	5.1618	19.093	27.627	26.396
88	5.0799	18.79	27.189	25.977
89	4.998	18.487	26.75	25.558
90	4.916	18.184	26.312	25.139
91	4.8341	17.881	25.873	24.72
92	4.7522	17.578	25.434	24.301
93	4.6702	17.274	24.996	23.882
94	4.5883	16.971	24.557	23.463
95	4.5064	16.668	24.119	23.044
96	4.4244	16.365	23.68	22.625
97	4.3425	16.062	23.242	22.206
98	4.2606	15.759	22.803	21.788
99	4.1786	15.456	22.365	21.369
100	4.0967	15.153	21.926	20.95



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