[R] Error in inherits(x, "data.frame") : object "Dataset" not found

[Bob Green]

I have been trying to run a logistic regression using a number of studies. 
Below is the syntax, error message & data.

Any advice regarding what I am doing wrong or solutions are appreciated,

regards

Bob Green


 > logreg <- read.csv("c:\\logregtest.csv",header=T)
 > attach(logreg)
 > names(logreg)
  [1] "medyear"   "where"     "who"       "dxbroad"   "firstep"   "standard"
  [7] "age"       "sex"       "successes" "failures"
 > model <- glm(cbind(successes, failures) ~medyear + age + sex +  where + 
who + dxbroad + firstep + standard, family=binomial, data=Dataset)
Error in inherits(x, "data.frame") : object "Dataset" not found


medyear	where	who	dxbroad	firstep	standard	age	sex	successes	failures
89	3	2	1	0	0	31.5	71	28	117
98	2	2	1	0	1	48	62	15	72
98	4	1	1	0	0	45.2	61	42	57
89	3	0	1	0	1	28.7	63	19	48
99	2	2	1	0	1	34.7	73	27	73
88	3	0	1	0	1	30.6	58	26	57
94	1	1	1	0	1	36.3	81	70	124
96	3	1	1	0	1	40	57	27	40
96	2	2	1	0	1	33.1	64	9	41
88	2	0	1	1	0	29.5	47	30	202
98	1	2	0	0	1	39.3	60	246	734
97	4	0	0	0	1	38.4	67	17	85
92	3	0	1	0	1	34.3	67	15	127
88	2	0	1	0	1	NA	46	9	90
85	3	0	1	0	1	30.3	64	58	87
94	3	0	1	0	1	38.8	47	47	126
88	3	0	1	0	1	33.8	54	25	134
92	3	0	1	1	1	NA	NA	67	157
90	3	0	1	1	1	26	52	17	101
90	3	0	1	0	0	NA	NA	39	32
90	2	0	1	0	1	36.1	38	10	173
90	2	0	1	0	1	38.9	53	64	383
97	2	0	1	0	1	31.5	61	12	52
99	1	1	1	0	1	NA	NA	25	56
100	4	1	1	0	1	45	62	46	270
101	2	0	1	0	1	32.4	100	33	92